AFI 78b (Ordovician of China)

Where: Sichuan, China (28.3° N, 103.8° E: paleocoordinates 17.9° N, 136.4° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Didymograptus artus foram zone, 5 Member (Dashaba Formation), Darriwilian (467.3 - 458.4 Ma)

• Basal Llanvirn; Didymograptus artus Zone

• group of beds-level stratigraphic resolution

Environment/lithology: brown, yellow, calcareous mudstone

• Greyish yellow mudstone at base

Size class: macrofossils

Collection methods: NIGPP

Primary reference: R.-B. Zhan and J. Jin. 2005. Brachiopods from the Dashaba Formation (Middle Ordovician) of Sichuan Province, south-west China. Special Papers in Palaeontology 74:1-63 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 64778: authorized by Pete Wagner, entered by Pete Wagner on 14.09.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Pentamerida - Clarkellidae
Yangtzeella kueiyangensis
 Orthida - Phragmorthidae
Phragmorthis longisepta
 Orthida - Orthidae
Paralenorthis sp.
Paralenorthis sp. Havlicek and Branisa 1980
 Orthida - Productorthidae
Saucrorthis obscura
 Orthida - Glyptorthidae
Parisorthis dischidanteris
Parisorthis dischidanteris Zhan and Jin 2005
 Orthida - Harknessellidae
? Horderleyella rude
Strophomenata
 Strophomenida - Grorudiidae
Calyptolepta chengkouensis
 Strophomenida - Leptellinidae
Leptastichidia catatonosis
Leptastichidia catatonosis Zhan and Jin 2005
 Strophomenida - Glyptomenidae
Glyptomena "sp. A"
Glyptomena "sp. A" Cooper 1956
 Strophomenida - Rafinesquinidae
Heteromena dorsiconversa, Pentagomena parvicostellata
Heteromena dorsiconversa Zhan and Jin 2005
Pentagomena parvicostellata Zhan and Jin 2005