| Phatthalungoceras srisuki |
Tongtherm & Nabhitabhata, 2018
Phatthalungoceras srisuki gen. et sp. nov. (Orthoceratidae) has been collected from Khao Ok-Thalu, Chaiburi Formation, Triassic Strata in Phatthalung province, in eastern peninsular Thailand and is described as a new genus and species based on the characteristics of the internal mold of the phragmocone. The new genus is distinguished from other family members by its elliptical cross section of the conch as well as suborthochoanitic septal neck and free endosiphuncular deposit. Ornamentation is absent.
Keywords: new genus, new species, Triassic, nautiloid, Thailand
Kittichai Tongtherm and Jaruwat Nabhitabhata. 2018. Phatthalungoceras srisuki, A New Genus and Species of Triassic Nautiloid Cephalopod (Cephalopoda: Orthoceratoidea, Orthoceratidae) from Eastern Peninsular Thailand. Phuket Marine Biological Center Research Bulletin. 75:13-18.