Phuket mar. biol. Cent. Res. Bull. 75: 27–44 (2018) 3 NEW RECORDS OF AMMONOIDS (CEPHALOPODA: AMMONOIDEA) FROM PENINSULAR THAILAND Kittichai Tongtherm1, Jaruwat Nabhitabhata2*, Paladej Srisuk3 and Thammarat Nutadhira4 1Department of Biology, Faculty of Science, Prince of Songkla University, Hatyai, Songkhla 90112, Thailand 2Excellence Centre for Biodiversity of Peninsular Thailand (CBIPT), Faculty of Science, Prince of Songkla University, Hatyai, Songkhla 90112, Thailand 3Palaeontological Research and Education Center, Mahasarakham University, Kantarawichai, Mahasarakham 44150, Thailand 4Natural History Museum, Kampangwittaya School, La-gnu, Satun 91110, Thailand *Corresponding Author:
[email protected],
[email protected] ABSTRACT: Four taxa of ammonoid cephalopods have been discovered in the Devonian, Carboniferous, Permian and Triassic strata in Peninsular Thailand. All taxa are new records of ammonoids in Thailand. They comprise the Devonian ammonnoid ?Parawocklumeriidae gen. et sp. indet., the Carboniferous form Goniatites cf. eganensis Korn and Titus, 2011, the Permian ammonoid Cyclolobus sp. indet. from Satun province, on the western part of the peninsula, and the Triassic ammonoid Ceratitina gen. et sp. indet. from Phatthalung province, on the eastern part of the peninsula. Key words: new records, ammonoids, Cephalopoda, peninsular Thailand. INTRODUCTION IURP .RK 0DSUDR R൶FLDOO\ .R 3UDR Phuket province. However, this species name Several authors have documented ammonoids might currently be a synonym of a marine caeno- IURP 7KDLODQG 7KH ¿UVW UHFRUG RI DPPRQRLG gastropod, Hipponix antiquatus (Linnaeus, 1767) cephalopod fossils in Thailand was reported by of the family Hipponicidae (WoRMS, 2017). All Reed (1920), based on specimens from Carbonif- published occurrences are listed in Table 1. Am- erous strata in Srinagarindra district, Phatthalung monoids are overall rather rare in Thailand, thus province, on the eastern part of the peninsula (Ta- making almost every new record relevant for a ble 1).