Sunday, July 31, 2011

[Botany • 2010] Impatiens oblongipetala K. M. Liu & Y. Y. Cong • new species (Balsaminaceae) from Yunnan, China



Impatiens oblongipetala K. M. Liu & Y. Y. Cong

ABSTRACT . A new species of Impatiens L., I. oblongipetala K. M. Liu & Y. Y. Cong (Balsaminaceae), from Yunnan Province, China, is described and illustrated, including its seed and pollen micromorphologies. This species is similar to I. lecomtei Hook. f. and I. weihsiensis Y. L. Chen, but differs by the white to slightly pink lateral sepals, the white lower sepal without purple striae, and the lateral united petals with apically retuse distal lobes.

Key words: Balsaminaceae, China, Impatiens, IUCN Red List, Yunnan.


Thursday, July 21, 2011

[Botany • 2009] Impatiens nanlingensis A. Q. Dong & F. W. Xing • new species (Balsaminaceae) from Guangdong, China



Impatiens nanlingensis A. Q. Dong & F. W. Xing sp. nov.

Impatiens nanlingensis A. Q. Dong & F. W. Xing, a new species of Impatiens (Balsaminaceae) from Guangdong, China, is described and illustrated. It is morphologically similar to I. jinggangensis Y. L. Chen, but differs mainly by its lateral united petals; basal lobes suborbicular, marked with yellow stripes; distal lobes narrowly caudate, apex tailed. It also resembles I. bicornuta, but I. bicornuta differs mainly in its longer peduncles, up to 25 cm, pale blue purple flowers and broadly sigmoid-curved saccate lower sepal.

Impatiens nanlingensis A. Q. Dong & F. W. Xing sp. nov. (Fig. 1 -2)

Species nova I. jinggangensi Y. L. Chen et I. bicornutae Wall. affinis, sed a priore petalis lateralibus longioribus, 18 22 mm longis, lobis corollae superioribus obovatis vel suborbiculatis, inferioribus apice longicaudatis divergit; ab altera floribus roseis vel intense roseis, pedunculis brevioribus 3 6 cm longis, sepalis inferioribus late infundibuliformibus differt.

Type: China, Guangdong Province, Shaoguan City, Nanling National Forest Park, Mount Babaoshan, thick soil along margins of evergreen broad-leaved forests, 24895?N, 113805?E, ca 1050 m a.s.l., 9 Sep 2008, An-Qiang Dong 2200 (holotype: IBSC).



An-Qiang Dong, Lin Chen and Fu-Wu Xing. 2009. Impatiens nanlingensis sp. nov. (Balsaminaceae) from Guangdong, China. Nordic Journal of Botany. 27: 475 477. doi:10.1111/j.1756-1051.2009.00554.x / http://www.gdnl.org/wwwroot/upfile/20106/20106138245000.pdf

[Botany • 2007] Impatiens yaoshanensis K.M. Liu & Y.Y. Cong • new Balsaminaceae from Yunnan, China



Impatiens yaoshanensis K.M. Liu & Y.Y. Cong sp. nova (Balsaminaceae) is described from northern Yunnan, China, and illustrated. It is morphologically similar to I. cyanantha, I. purpurea, I. blinii, I. pseudo-kingii, and I. loulanensis. The distinguishing characters are given in a key to the six species.

Cong, Y. Y., Liu, K. M. & Tian, S. Z. 2008. Impatiens yaoshanensis (Balsaminaceae), a new species from Yunnan, China. — Ann. Bot. Fennici. 45: 148–150.: http://www.sekj.org/anb/anb452.htm / http://www.sekj.org/PDF/anb45-free/anb45-148.pdf

[Botany • 2009] Impatiens lobulifera S. X. Yu, Y. L. Chen & H. N. Qin • new Balsaminaceae from limestone areas in Guangxi, China


Impatiens lobulifera S. X. Yu, Y. L. Chen & H. N. Qin, sp. nov.

ABSTRACT
Impatiens lobulifera (Balsaminaceae), a new species from limestone areas in southwestern Guangxi Zhuangzu Autonomous Region, China, is described and illustrated. The characters of its seed micromorphology and pollen morphology under SEM are given. It is similar to I. verrucifera in having succulent stems, peduncles 4-5 mm long, tufted pedicels and connate distal lobes of lateral united petals, but differs in having ovate or ovate-orbicular leaf blades, 4-5-flowered peduncle, yellow-green flowers, outer lateral sepals ovate-orbicular, inner lateral sepals ovate-lanceolate and topped with four finger-like lobes.

Key words: Balsaminaceae; China; Guangxi; Impatiens lobulifera; Impatiens morsei; Impatiens musyana; Impatiens verrucifera; Limestone areas; New species; Pollen morphology; Rare species; Seed morphology.


Impatiens lobulifera S. X. Yu, Y. L. Chen & H. N. Qin, sp. nov.

TYPE: China. Guangxi Zhuangzu Autonomous Region, Baise Shi, Napo Xian, Pingmeng Xiang, Nianjing Cun, 23°00’29.6’’ N, 105°52’24.9’’E, alt. ca. 800 m, shady places in limestone areas, 30 Aug 2004, S. X. Yu 3220 (holotype: PE, here designated; isotype: IBK).

Affinis I. verruciferae Hook. f., sed foliorum laminis ovatis vel ovato-orbiculatis, pedunculis 4-5 mm longis, 4- vel 5-floris, floribus flavo-virentibus, sepalis lateralibus exterioribus ovato-orbiculatis, conchatis, interioribus ovato-lanceolatis, apice 4-lobatis digitiformibus differt.


Figure 5. Distribution of Impatiens lobulifera (★) in China.

Figure 2. Impatiens lobulifera (A-G). A, Habit; B, Flower, face view; C, Fruit; D-G, Flower, different views.



Figure 2. Impatiens lobulifera (A-G) and I. morsei (H-J). A, Habit; B, Flower, face view; C, Fruit; D-G, Flower, different views; H, Habit; I, Flower; J, Fruit.

Figure 1. Impatiens lobulifera S. X. Yu, Y. L. Chen & H. N. Qin. A, Habit; B, Flower (face view); C, Outer lateral sepal; D, Inner lateral sepal; E, Lower sepal; F, Dorsal petal; G, Lateral united petal, 1: basal lobe, 2: distal lobe; H, Fruit; I, Androecium. Drawn by Y. B. Sun from S. X. Yu 3220 (holotype, PE).


Sheng-Xiang YU, Yuan-Tong HOU, Yi-Lin CHEN, and Hai-Ning QIN. 2009. Impatiens lobulifera (Balsaminaceae), a new species from limestone areas in Guangxi, China. Botanical Studies. 50: 365-370.:

[Botany • 2009] Impatiens cornutisepala S. X. Yu, Y. L. Chen & H. N. • new species (Balsaminaceae) from Guangxi, China




ABSTRACT
A new species from Guangxi Province, Impatiens cornutisepala S. X. Yu, Y. L. Chen & H. N. Qin, is described for the Balsaminaceae in China. It is similar to I. dicentra Franchet ex Hooker f. in the 1- flowered peduncle and the lobes of the lateral united petals that are terminated by a long filamentous bristle. However, the new species differs from the latter in its narrowly elliptic to oblanceolate leaf blade, the smaller lateral sepals with entire margins and a prominent green cornute appendage dorsally, the spur of the lower sepal that is entire at the tip, and its differing leaf epidermis micromorphology. The micromorphology of seeds and pollen under SEM is presented.

Key words: Balsaminaceae, China, Guangxi, Impatiens, IUCN Red List.


Impatiens cornutisepala S. X. Yu, Y. L. Chen & H. N. Qin, sp. nov.

TYPE: China. Guangxi: Quanzhou Co., Jiaojiang, in valley near river, 25u309490N, 110u559170E, ca. 1000–1300 m, 6 Oct. 2006, S. X. Yu 4023 (holotype, PE; isotype, IBK, MO). Figure 1.

Species ob pedunculum uniflorum et lobulos petalorum lateralium connatorum apice in trichomata longa desinentes Impatienti dicentrae Franchet ex Hooker f. similis, sed ab eafoliis anguste ellipticis vel obovato-ellipticis, sepalis lateralibus parvis margine integris dorsaliter appendicibus corniformibus viridibus praeditis atque calcari apice integro differt.

Distribution and ecology. Impatiens cornutisepala is endemic to northeastern Guangxi Province, China, recorded so far only from Quanzhou County. The plants were found in a moist valley in Jiaojiang village from 1000–1300 m elevation, in association with Pilea Lindley, Elatostema J. R. Forster & G. Forster, Carex L., an unidentified bamboo species, and other grasses.

IUCN Red List category. The population covers an area of about 1000 sq.m. and includes approximately 500 to 600 individuals. According to IUCN Red List criteria (IUCN, 2001), Impatiens cornutisepala should be categorized as Critically Endangered (CR).

Phenology. The new species was observed in flower from July to October and in fruit from August to November.

Etymology. The specific epithet cornutisepala is from the Latin and refers to the lateral sepals with their green cornute appendages.


KEY TO FOUR SPECIES OF IMPATIENS IN GUANGXI PROVINCE, CHINA
Sheng-xiang Yu, Xiu-ren Zhou, and Yi-ling Chen. 2009. Impatiens cornutisepala (Balsaminaceae), a New Species from Guangxi, China. Novon: A Journal for Botanical Nomenclature. 19(4):562-566. DOI: 10.3417/2008008

[Botany • 2008] Impatiens fugongensis K. M. Liu et Y. Y. Cong • new species (Balsaminaceae) from Northwestern Yunnan, China



ABSTRACT
A new species of Impatiens L., I. fugongensis K. M. Liu et Y. Y. Cong, sp. nov., is described and illustrated. The species is restricted to the wet evergreen broad-leaved montane forests of Gaoligong Mountain in Northwestern Yunnan, China. Diagnostic morphological characters and seedcoat micromorphological characters that distinguish the new species from the related species, I. xanthina Comber and I. monticola Hook. f., are discussed.

Keywords: Balsaminaceae; China; Impatiens; Impatiens fugongensis; Micromorphology; New species; Seedcoat; Yunnan.

Impatiens fugongensis K. M. Liu et Y. Y. Cong, sp. nov.
TYPE: CHINA. Northwestern Yunnan Province: Fugong County, Gaoligong Mountain, alt. 2,200 m, on the damp cliff, 12 Oct 2006, Liu Ke-Ming & Cong Yi-Yan 791378 (holotype: HNNU; isotypes KUN, HNNU). Figure 1

Species haec I. xanthinae Comber similis, sed foliis ellipticis vel suborbicularibus, apice obtuso-acutis vel obtuso-rotundatis, nervis lateralibus 5-7-jugis, bracteis caducis, sepalis inferioribus cornutis, pubescentibus, lobis superioribus petalorum lateralium longe ellipticis facile differt. A I. monticola Hook. f. caulibus 5.5-9 cm altis, foliis ellipticis vel suborbicularibus, bracteis caducis, floribus 14-17 mm longis, pubescentibus, sepalis inferioribus cornutis, lobis superioribus petalorum lateralium longe elliptiscis diversa.



Yi-Yan CONG, Ke-Ming LIU, Xiu-Zhen CAI, and Shu-Zhen TIAN. 2008. Impatiens fugongensis (Balsaminaceae), a new species from Yunnan, China. Botanical Studies. 49: 161-165.: http://ejournal.sinica.edu.tw/bbas/content/2008/2/Bot492-09.pdf

[Botany • 2008] Impatiens rupestris K. M. Liu & X. Z. Cai • new species of Balsaminaceae from Hunan, southern China



ABSTRACT
Impatiens rupestris K. M. Liu & X. Z. Cai, a new species of Balsaminaceae from Hunan Province in southern China, is described and illustrated. An identification key to the new species and its relatives is provided. Impatiens rupestris differs from I. polyneura K. M. Liu in its lamina base widely cuneate or 6 rounded, the lateral veins in 11 to 16 pairs, the dorsal petal widely obovate, and the lower lobes of the lateral united petals connate into obovate lamella. It is distinct from I. obesa Hooker f. in its lamina elliptic or ovate-oblong, lateral united petals stipitate, upper corolla lobes widely obovate or suborbicular, lower corolla lobes connate into obovate lamella, and seeds with tuberculate testa.

Key words: Balsaminaceae, China, Hunan, Impatiens, IUCN Red List.


Impatiens rupestris K. M. Liu & X. Z. Cai, sp. nov.

TYPE: China. Hunan: Jiangyong Co., 350 m, 111u9959.70E, 25u6911.80N, limestone crevices on S slopes, 22 July 2006, K. M. Liu & X. Z. Cai 772938 (holotype, HNNU; isotypes, MO, HNNU). Figure 1.

Species Impatienti polyneurae K. M. Liu affinis, sed laminis foliorum basi vulgo late cuneatis vel suborbiculatis, nervis lateralibus 11- ad 16-jugis, petalo dorsali late obovato, petalis lateralibus inferioribus connatis facile differt. Ab I. obesa Hooker f. laminis foliorum ellipticis vel ovato-oblongis, petalis lateralibus stipitatis, lobis corollae superioribus late obovatis vel suborbiculatis, inferioribus connatis obovatis apice emarginato, seminibus parvi-tuberculatis facile differt.


Figure 1. Impatiens rupestris K. M. Liu & X. Z. Cai. —A. Upper portion of flowering stem. —B. Lower part of the stem and adventitious roots. —C. Flower, front view. —D. Outer two lateral sepals. —E. Inner two lateral sepals. —F. Dorsal petal. —G. Lateral united petals, dorsal view. —H. Lower sepal. —I. Androecium, showing poricidal dehiscence. —J. Ovary. —K. Fruit. —L. Seeds. Drawn by L. H. Liu from the holotype, K. M. Liu & X. Z. Cai 772938 (HNNU).


Xiu-Zhen Cai, Ke-ming Liu, and Shu-zhen Tian. 2008. Impatiens rupestris (Balsaminaceae), a New Species from Hunan, China. Novon: A Journal for Botanical Nomenclature. 18(1):9-11. doi: 10.3417/2007068 / http://hua.huh.harvard.edu/china/novon/novo-18-01-09.pdf

[Botany • 2007] Impatiens angulata S. X. Yu, Y. L. Chen et H. N. Qin • new species (Balsaminaceae) from Guangxi, China



Impatiens angulata S. X. Yu, Y. L. Chen et H. N. Qin sp. nov (Balsaminaceae), a new species from Guangxi, China, is described and illustrated. This species is close to I. hainanensis in morphological characters. Both have succulent stems, 4 lateral sepals, connected upper lobes of lateral united petals, but are distinguished by the base of stems with 6 9 ridges, leaves oblong or oblanceolate, the outer lateral sepals with 9 veins, inner lateral sepals ovate and dorsal sepal with deep bilobate spur.

Impatiens angulata S. X. Yu, Y. L. Chen et H. N. Qin sp. nov (Fig. 1 - 3).
I. hainanensi affinis, sed caulibus angulatis, foliis oblongis vel oblanceolatis, sepalis exterioribus ovato-oribucularis, cuspidatis, venulis 9, sepalis interioribus ovatis, calcari apice profunde bilobato, petalo dorsali dorso crestato bene differt.

Type: China. Guangxi, Longzhou County. Apricus places in the limestone reigon, alt. 200 300 m a. s. l., 2 May 2006, Yu Sheng-Xiang 3777 (holotype PE, isotype IBK).



Fig. 1. Impatiens angulata (photograhped by S. X. Yu from Guangxi). (A) (B) flowers, (C) stem, (D) flower branches, (E) habit.

Fig. 2. Distribution of Impatiens angulata and I. hainanensis.

Fig. 3. Linedrawings from the holotype specimen of Impatiens angulata S. X. Yu, Y. L. Chen et H. N. Qin. (A) habit, (B) blade, (C) flower (lateral view), (D) outer lateral sepal, (E) inner lateral sepal, (F) lower sepal, (G) dorsal petal, (H) lateral united petal, (H1) basal lobe, (H2) upper lobe, (I) fruit. Drawn by Y. B. Sun from S. X. Yu 3777.


Sheng-Xiang Yu, Yi-Lin Chen and Hai-Ning Qin. 2007. Impatiens angulata (Balsaminaceae), a new species from Guangxi, China. Nordic Journal of Botany. 25: 27 30. doi: 10.1111/j.2007.0107-055X.00049.x

[Botany • 2007] Impatiens macrovexilla var. yaoshanensis • New Variety of Balsaminaceae from Guangxi, China




Abstract
Impatiens macrovexilla Y. L. Chen var. yaoshanensis S. X. Yu, Y. L. Chen & H. N. Qin, a new variety of Balsaminaceae from Guangxi, China, is described. Variety yaoshanensis differs from the typical variety by having ovate-orbicular or ovate-oblong leaves, entire lateral sepals, an obvious auricle and entire distal lobe of the alae and visibly ridged seeds. Micromorphological characters of the pollen grains and seed surface under SEM of the two varieties also support the recognition of this taxon.

Key words: Impatiens, Impatiens macrovexilla var. yaoshanensis S. X. Yu, Y. L. Chen & H. N. Qin, new variety, Balsaminaceae, Guangxi, China.



Impatiens macrovexilla var. yaoshanensis S. X. Yu, Y. L. Chen & H. N. Qin, a new variety of Balsaminaceae from Guangxi, China: http://www.plantsystematics.com/qikan/manage/wenzhang/aps06037.pdf

Wednesday, July 20, 2011

[Palaeontology • 2010] Bonnerichthys gladius • Giant Suspension-feeding Bony Fish from the lower Upper Cretaceous of the United States


In artist's reconstruction of the 70-million-year-old giant suspension-feeding bony fish Bonnerichthys as it cruises through the seaway.
Art by Robert Nicholls, www.paleocreations.com

Abstract:
Large-bodied suspension feeders (planktivores), which include the most massive animals to have ever lived, are conspicuously absent from Mesozoic marine environments. The only clear representatives of this trophic guild in the Mesozoic have been an enigmatic and apparently short-lived Jurassic group of extinct pachycormid fishes. Here, we report several new examples of these giant bony fishes from Asia, Europe, and North America. These fossils provide the first detailed anatomical information on this poorly understood clade and extend its range from the lower Middle Jurassic to the end of the Cretaceous, showing that this group persisted for more than 100 million years. Modern large-bodied, planktivorous vertebrates diversified after the extinction of pachycormids at the Cretaceous-Paleogene boundary, which is consistent with an opportunistic refilling of vacated ecospace.

• Gigantic filter-feeding fishes lived during the Mesozoic Era.
• Filter feeding didn't first emerge in whales, as had been previously suspected, but instead began with the now-extinct fishes.
• After the filter-feeding fishes died out with the dinosaurs, whales and other cetaceans filled the ecological niche.

Bonnerichthys jawbones and forefin/Matt Friedman

Fig. 2 Bonnerichthys gladius gen. nov., a giant suspension-feeding bony fish from the Upper Cretaceous of the United States. (A) Neurocranium and parasphenoid in ventral view. (B) Gular plate in ventral view. (C) Cranial and pectoral skeleton, shown in right-lateral view. Bones that were reconstructed from other specimens are shown in gray. (D) Hypural plate in right-lateral view. Scale bar in (C) applies to (A) to (D). (A) to (C) show specimen KUVP 60692; (D) shows specimen FHSM (Sternberg Museum, Hays, Kansas) VP-17428. (E) Tentative reconstruction in ventral (top) and lateral (bottom) views, indicating life position of bones shown in (A) to (D). ant, antorbital; ar, articular; cle, cleithrum; dsp, dermosphenotic; ect, ectopterygoid; f.hym, hyomandibular facet of neurocranium; op, opercle; p.f, pectoral fin; qu, quadrate; sco, scapulocoracoid; and sop, subopercle.



Matt Friedman, Kenshu Shimada, Larry D. Martin, Michael J. Everhart, Jeff Liston, Anthony Maltese and Michael Triebold. 2010. "100-million-year dynasty of giant planktivorous bony fishes in the Mesozoic seas". Science. 327 (5968): 990–993. doi:10.1126/science.1184743. http://www.sciencemag.org/content/327/5968/990

SUV-Sized Fish Were Earliest Filter-Feeders : Discovery News
http://news.discovery.com/animals/giant-fish-filter-feeders.html

Feb. 18, 2010 -- Above is an artist's reconstruction of the 70-million-year old giant suspension-feeding bony fish Bonnerichthys as it cruises through the seaway covering what is today Kansas.
Researchers had believed that these prehistoric bony fish only existed for a short period of time, but newly examined fossils reveal that this group actually persisted for more than 100 million years during the Mesozoic.
By reinterpreting old findings and analyzing new fossils, researchers found that the massive suspension feeders, which engulfed water with an open mouth and sieved food while water escaped through gill slits, lived from 170 to 65 million years ago.
During that time, they pioneered the unique (and highly effective) filter-feeding strategies that can still be seen in the largest marine vertebrates living today.

The Year’s Best Fossil Finds

[Palaeontology • 2010] Rhinconichthys taylori • Giant Suspension-feeding Bony Fish from the lower Upper Cretaceous (Cenomanian), Kent, UK



(A) †Rhinconichthys taylori gen. et sp. nov.,
BMNH 219, from the lower Upper Cretaceous (Cenomanian) Lower Chalk of Kent, UK

Fig. 1 Newly recognized fossils of giant Mesozoic suspension-feeding bony fishes. (A) †Rhinconichthys taylori gen. et sp. nov., BMNH 219, from the lower Upper Cretaceous (Cenomanian) Lower Chalk of Kent, UK, in right- and left-lateral views. (B) Indeterminate edentulous †pachycormid, BMNH P.41669, from the lower Middle Jurassic (Bajocian) Inferior Oolite of Dorset, UK, in dorsal and ventral view (anterior is toward the top). Matrix has been digitally masked so as to enhance contrast, and preserved bone that would have been visible externally in the ventral and dorsal views is shaded in tentative reconstruction based on †Martillichthys and †Pachycormus. Scale bars apply only to fossils. boc, basioccipital; brs, branchiostegal rays; cbr, certobranchials; chy, anterior ceratohyal; de, dentary; dpt, dermopterotic; ent, entopterygoid; fr, frontal; gu, median gular; hhy, hypohyal; hym, hyomandibula; mtp, metapterygoid; mx, maxilla; psp, parasphenoid; rde, rostrodermethmoid; and scl, sclerotic ring. Paired bones are listed as right (r) or left (l).

Abstract
Large-bodied suspension feeders (planktivores), which include the most massive animals to have ever lived, are conspicuously absent from Mesozoic marine environments. The only clear representatives of this trophic guild in the Mesozoic have been an enigmatic and apparently short-lived Jurassic group of extinct pachycormid fishes. Here, we report several new examples of these giant bony fishes from Asia, Europe, and North America. These fossils provide the first detailed anatomical information on this poorly understood clade and extend its range from the lower Middle Jurassic to the end of the Cretaceous, showing that this group persisted for more than 100 million years. Modern large-bodied, planktivorous vertebrates diversified after the extinction of pachycormids at the Cretaceous-Paleogene boundary, which is consistent with an opportunistic refilling of vacated ecospace.

Matt Friedman, Kenshu Shimada, Larry D. Martin, Michael J. Everhart, Jeff Liston, Anthony Maltese and Michael Triebold. 2010. 100-million-year Dynasty of Giant Planktivorous Bony Fishes in the Mesozoic Seas. Science. 327 (5968): 990–993. doi: 10.1126/science.1184743.  

[Palaeontology • 2010] • First Known Feeding Trace of the Eocene Bottom-Dwelling Fish Notogoneus osculus and Its Paleontological Significance



Background
The Green River Formation (early Eocene, about 42–53 Ma) at and near Fossil Butte National Monument in Wyoming, USA, is world famous for its exquisitely preserved freshwater teleost fish in the former Fossil Lake. Nonetheless, trace fossils attributed to fish interacting with the lake bottom are apparently rare, and have not been associated directly with any fish species. Here we interpret the first known feeding and swimming trace fossil of the teleost Notogoneus osculus Cope (Teleostei: Gonorynchidae), which is also represented as a body fossil in the same stratum.

Methodology/Principal Findings
A standard description of the trace fossil, identified as Undichna cf. U. simplicatas, was augmented by high-resolution digital images and spatial and mathematical analyses, which allowed for detailed interpretations of the anatomy, swimming mode, feeding behavior, and body size of the tracemaker. Our analysis indicates that the tracemaker was about 45 cm long; used its caudal, anal, and pelvic fins (the posterior half of its body) to make the swimming traces; and used a ventrally oriented mouth to make overlapping feeding marks. We hypothesize that the tracemaker was an adult Notogoneus osculus.

Conclusions/Significance
Our results are the first to link a specific teleost tracemaker with a trace fossil from the Green River Formation, while also interpreting the size and relative age of the tracemaker. The normal feeding and swimming behaviors indicated by the trace fossil indicate temporarily oxygenated benthic conditions in the deepest part of Fossil Lake, counter to most paleoecological interpretations of this deposit. Lastly, our spatial and mathematical analyses significantly update and advance previous approaches to the study of teleost trace fossils.

Figure 4. Full-size (53-cm long) adult specimen of Notogoneus osculus Cope, about 13% longer than the tracemaker interpreted for the trace fossil FOBU-12718; scale in centimeters.

Figure 1. Locality map of Dayvalult Quarry, source of specimen FOBU-12718, with relation to Fossil Butte National Monument, Wyoming (USA).

Figure 5. Artistic recreation of Notogoneus osculus forming the swimming-feeding trace fossil FOBU-12718, viewed from above.



Figure 2. Trace fossil specimen FOBU-12718.
A - Digital composite photograph of specimen. B – Digitally enhanced composite photograph, emphasizing contrast of trace fossil from host lithology. C – Digitized points assigned to waveforms in the trace fossil, with labeling tentatively assigned to presumed body parts (caudal fin, anal fin, pelvic fins, mouth). D – Fitted waveforms based on Fourier transform, showing extrapolated paths of body parts, and superimposed onto plots taken from trace fossil. Colors of fitted waveforms describe each presumed body part, as indicated in the legend.


Martin AJ, Vazquez-Prokopec GM, Page M. 2010. First Known Feeding Trace of the Eocene Bottom-Dwelling Fish Notogoneus osculus and Its Paleontological Significance. PLoS ONE. 5(5): . doi: 10.1371/journal.pone.0010420

The Mark of a Sucker: Rare Suckerfish Trace Fossil Found : Discovery News http://news.discovery.com/animals/the-mark-of-a-sucker-rare-suckerfish-trace-fossil-found.html

[Invertebrate • 2011] Amphidromus atricallosus temasek • A new subspecies of Amphidromus (Camaenidae) from Singapore



ABSTRACT
The arboreal land snail of the genus Amphidromus Albers, 1850, found in Singapore is often identifi ed in the literature as Amphidromus atricallosus perakensis Fulton, 1901. Studies of A. atricallosus perakensis material from various localities in Peninsular Malaysia showed that the Singapore population is distinct. Results from earlier studies on molecular phylogeny and allozyme analyses also suggest genetic discontinuity from other A. atricallosus subspecies. The Singapore population is herein described as A. atricallosus temasek, new subspecies, and can be differentiated from A. atricallosus perakensis by several morphological characters.
KEY WORDS. – Singapore, Gastropoda, Camaenidae, Amphidromus atricallosus temasek, new subspecies.





A new subspecies of Amphidromus (Amphidromus) atricallosus from Singapore (Mollusca: Gastropoda: Camaenidae). The Raffles Bulletin of Zoology, 59:39-46.: http://rmbr.nus.edu.sg/rbz/biblio/59/59rbz039-046.pdf

[Invertebrate • 2004] Opisthostoma (Opisthostoma) beeartee • the first record of the subgenus Opisthostoma from Peninsular Thailand


FIGURE 2. Opisthostoma (Opisthostoma) beeartee n. sp., holotype: (a) apertural view; (b) abapertural view; (c) apical view, (d) apical showing protoconch; (e) shell aperture.


ABSTRACT
Opisthostoma (Opisthostoma) beeartee n. sp. is described from a limestone island of Tadan area, Pangnga Bay in the Andaman Sea, Thailand. This is the second record for the genus and the first record of the subgenus Opisthostoma for Thailand.

Key words: Opisthostoma (Opisthostoma) beeartee; Diplommatinidae; Cyclophoracea; Thailand



FIGURE 1. Map showing location of type locality, Tadan area near Pangnga bay, Pangnga Province.


Tongkerd, P., Sutchart, C. and Panha, S. 2004. A New Species of Opisthostoma from Thailand (Prosobranchia: Cyclophoracea: Diplommatinidae). The Natural History Journal of Chulalongkorn University. 4(2): 53-56: Fulltext

[Invertebrate • 2001] Diplommatina inthanon & D. siriphumi • 2 New Species of Diplommatina from northern Thailand



Diplommatina inthanon n. sp. & Diplommatina siriphumi n. sp.


ABSTRACT
Two new species of Diplommatinidae (Prosobranchia: Diplommatinidae) are described from Thailand. Diplommatina inthanon n. sp. was collected from the highest peak of Thailand, Doi Inthanon at about 2,600 meters above sea level on moss colony of a walking trail. The new species has a conical-shaped, sinistral with frequent radial ribs without spiral striation. This is the second largest shell size of Thai Diplommatina after the first Diplommatina gigas Panha & Burch 2001. Diplommatina siriphumi n. sp. has a pupa-shaped, sinistral with strong radial ribs and weak spiral striation. The unique characteristic of the new species is the smooth surface with no radial rib on almost half area of the ultimate whorl.

KEY WORDS: Diplommatina inthanon; Diplommatina siriphumi; Prosobranchia; Diplommatinidae; Thailand.







Panha, S. and Burch, J. B. 2001. Two New Species of Diplommatina from Thailand (Prosobranchia: Diplommatinidae). The Natural History Journal of Chulalongkorn University. 1(1):33-37.: http://www2.biology.sc.chula.ac.th/web%20of%20NHJCU%20PDF/1-1,%2033-37.pdf