Wat Chonlathararam (WCR), Loei area (Permian of Thailand)

Where: Thailand (17.5° N, 101.7° E: paleocoordinates 20.2° S, 99.2° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: E-Lert Formation (Ratburi Group), Artinskian (290.1 - 279.3 Ma)

• Metaperrinites zone

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified mudstone

• mudstone, shale, sandstone and limestone with a few bedded cherts; ammonoids were mainly preserved in mudstone

Size class: macrofossils

Preservation: mold/impression

Primary reference: T. Ishibashi, M. Fujikawa, and N. Nakornsri. 1996. Permian ammonoids from the Loei area, northeast Thailand. Memoirs of the Faculty of Science, Kyushu University, Series D, Earth and Planetary Science 29(2):175-196 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 61735: authorized by Wolfgang Kiessling, entered by Uta Merkel on 27.06.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Prolecanitida - Pronoritidae
Neopronorites cf. darvasicus
Neopronorites cf. darvasicus Leonova 1988 ammonite
 Prolecanitida - Medlicottiidae
Akmilleria electraensis, Sicanites cf. notabilis, Bamyaniceras loeiense
Akmilleria electraensis Plummer and Scott 1937 ammonite
Sicanites cf. notabilis Ruzhentsev 1940 ammonite
Bamyaniceras loeiense Ishibashi et al. 1996 ammonite
 Goniatitida - Vidrioceratidae
Prostacheoceras sp.
Prostacheoceras sp. Ruzhencev 1937 ammonite
 Goniatitida - Agathiceratidae
Agathiceras sp.
Agathiceras sp. Gemmellaro 1887 ammonite
 Goniatitida - Popanoceratidae
"Popanoceras cf. sobolewskyanus" = Popanoceras sobolewskyanum
"Popanoceras cf. sobolewskyanus" = Popanoceras sobolewskyanum de Verneuil 1845 ammonite