Hoang Mai Formation, Sam Nua Basin, Central Vietnam (Triassic of Vietnam)

Where: Vietnam (19.5° N, 105.0° E: paleocoordinates 5.7° N, 95.5° E)

• coordinate estimated from map

• basin-level geographic resolution

When: Hoang Mai Formation, Anisian (247.2 - 242.0 Ma)

• 100-500 m thick. Late Anisian

• formation-level stratigraphic resolution

Environment/lithology: marine; limestone

Size class: macrofossils

Primary reference: V. Khuc. 2000. The Triassic of Indochina Peninsula and its interregional correlation. Permian-Triassic Evolution of Tethys and Western Circum-Pacific 221-233 [D. Bottjer/M. Clapham/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 44777: authorized by David Bottjer, entered by Matthew Clapham on 17.09.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Phylloceratida - Palaeophyllitidae
Leiophyllites cf. laevis Welter 1915 ammonite
 Ceratitida - Ceratitidae
"Beyrichites cf. migayi" = Frechitoides migayi
"Beyrichites cf. migayi" = Frechitoides migayi Kiparisova 1958 ceratite
Rhynchonellata
 Terebratulida - Dielasmatidae
 Terebratulida - Zeilleriidae
"Aulacothyris angusta" = Silesiathyris angusta
"Aulacothyris angusta" = Silesiathyris angusta Schlotheim 1820
 Rhynchonellida - Norellidae