AFI 98 (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 graptolite zone, 10 Member (Dashaba Formation), Darriwilian (467.3 - 458.4 Ma)

• Basal Llanvirn; Didymograptus artus Zone

• group of beds-level stratigraphic resolution

Environment/lithology: brown mudstone and gray mudstone

• Light brown mudstone with some interbeds of grey mudstone;

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 203294: authorized by Pete Wagner, entered by Pete Wagner on 08.08.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Orthida - Productorthidae
Saucrorthis obscura
/0:15:9:53:29:31 :29 (68)
 Orthida - Archaeorthidae
Nothorthis perplexa Xu and Liu 1984
0:0:0:0:0:3:0 (3)
 Orthida - Glyptorthidae
Parisorthis dischidanteris Zhan and Jin 2005
4:16:15:31:23:21:16 (51)
 Orthida - Orthidae
Paralenorthis sp. Havlicek and Branisa 1980
0:0:0:0:1:2:3 (3)
Orthambonites delicata
0:0:0:0:1:0:0 (I)
 Orthida - Phragmorthidae
Phragmorthis longisepta
0:0:0:1:0:2:1 (2)
Strophomenata
 Strophomenida - Glyptomenidae
Glyptomena "sp. A" Cooper 1956
0:0:0: 1:2:0:3 (3)
? Glyptomena rugulosa Zhan and Jin 2005
0:0:0:0:1:1:0 (1)
 Strophomenida - Rafinesquinidae
Pentagomena parvicostellata Zhan and Jin 2005
0:0:0:0:4:0:3 (4 )
Heteromena dorsiconversa Zhan and Jin 2005
0:0:0:1:1:0:0 (1 )
 Strophomenida - Grorudiidae
Calyptolepta chengkouensis
0:20;3:151:89:82:87 ( 177)
 Strophomenida - Leptellinidae
Leptastichidia catatonosis Zhan and Jin 2005
0:0:0:2:1:2:1 (2)