Vagrania-Leptathyris Comm., Early Emsian, Nanning Area, S. Guangxi (Devonian of China)

Where: Guangxi, China (22.8° N, 108.3° E: paleocoordinates 4.1° N, 126.3° E)

• coordinate based on political unit

• small collection-level geographic resolution

When: Early/Lower Emsian (409.1 - 402.5 Ma)

• "from an unnamed formation in South China"

Environment/lithology: marine; cherty/siliceous siltstone

• "Although the community is not well located environmentally in South China, except that it is near the outer limits of the shelly facies-Nandan facies, it may be compared with similar units elsewhere [details follow]....This community belongs in about the BA 3-4 position."
• "fossils occur largely as articulated valves in a siliceous siltstone matrix indicating relatively quiet water"

Collection methods: "currently known in South China from only a single small collection"

Primary reference: Y. Wang, A. J. Boucot, J.Y. Rong and X.C. Yang. 1987. Community paleoecology as a geologic tool: the Chinese Ashgillian-Eifelian (latest Ordovician through early Middle Devonian) as an example. Geological Society of America Special Paper 211:1-100 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 25866: authorized by Michael Foote, entered by Michael Foote on 26.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Athyridida - Athyrididae
Leptathyris sp.
 Spiriferida - Adolfiidae
? Brevispirifer sp.
 Spiriferida - Xenomartiniidae
? Quadrithyris sp.
? Quadrithyris sp. Havlicek 1957
 Orthida - Schizophoriidae
? Schizophoria sp.
 Atrypida - Carinatinidae
Carinatina sp.
 Atrypida - Karpinskiidae
Vagrania sp.
 Atrypida - Atrypidae
Atrypa sp., Atrypa sp., Anatrypa sp., ? Desquamatia sp., Spinatrypa sp.
Atrypa sp. Dalman 1828
Atrypa 1
Atrypa sp. Dalman 1828
Atrypa 2
? Desquamatia sp. Alekseeva 1960
Spinatrypa sp. Stainbrook 1951
 Rhynchonellida -
Rhynchonellida indet.
Rhynchonellida indet. Kuhn 1949
bilobate
 Rhynchonellida - Uncinulidae
Uncinulus sp.
Uncinulus sp. Bayle 1878
 Rhynchonellida - Trigonirhynchiidae
Nymphorhynchia sp.
Nymphorhynchia sp. Rzhonsnitskaya 1956
 Pentamerida - Clorindidae
Pentamerella sp.
 Pentamerida - Gypidulidae
? Gypidula sp.
? Gypidula sp. Hall 1867
fine ribbed
Strophomenata
 Strophomenida - Chonetidae
Chonetidae indet.
Chonetidae indet. Bronn 1862