YT 7. Tashan (Ordovician of China)

Where: Jiangxi, China (28.6° N, 118.3° E: paleocoordinates 2.0° N, 124.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Diceratograptus mirus graptolite zone, Xiazhen Formation, Ashgill (449.5 - 443.7 Ma)

• Assumed to be 3/4ths between YT3 & YT7

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siltstone

Size class: macrofossils

Primary reference: R.-b. Zhan, J.-y. Rong, J. Jin and L.R.M. Cocks. 2002. Late Ordovician brachiopod communities of southeast China. Canadian Journal of Earth Sciences 39:445-468 [P. Wagner/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 186264: authorized by Pete Wagner, entered by Pete Wagner on 18.06.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Orthotetida - Triplesiidae
 Strophomenida - Sowerbyellidae
"Sowerbyella sinensis" = Sowerbyella (Sowerbyella) sinensis
"Sowerbyella sinensis" = Sowerbyella (Sowerbyella) sinensis Wang and Jin 1964
Rhynchonellata
 Spiriferida - Cyrtiidae
 Protorthida - Skenidiidae
Skenidioides sp. Schuchert and Cooper 1931
 Atrypida - Atrypinidae
 Rhynchonellida - Sphenotretidae
 Orthida - Plectorthidae