Protathyris-Lanceomyonia Comm., Putonggou Fm., Diebu Co., Gansu Prov. (Devonian of China)

Where: Gansu, China (37.0° N, 103.0° E: paleocoordinates 30.3° S, 103.6° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Middle Member (Putonggou Formation), Lochkovian (419.2 - 410.8 Ma)

• "The Middle Member of the P. Fm. occurs above the Icriodus woschmidti-bearing Lower Member, and below the Spirigerina fauna-bearing Upper Member. This suggests that the Middle Member is of Late Gedinnian age."

• member-level stratigraphic resolution

Environment/lithology: marine; calcareous shale and reef rocks

• "...consists of calcareous shale, reefy limestone, and dolomitic limestone. The fossils occur as articulated individuals. Elsewhere in this Member there are additional low-diversity, high-dominance associations (including Protocortezorthis, Linguopugnoides, Schizophoria, and "Stropheodonta", as well as a few other associations including Protathyris, Linguopugnoides, and Howellella). The shells commonly occur in masses...The overall aspect suggests relatively shallow water,possibly BA 2 or shallow BA 3 within the quiet water category..."

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 25832: authorized by Michael Foote, entered by Michael Foote on 25.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Rhynchonellida - Hebetoechiidae
Lanceomyonia sp.
Lanceomyonia sp. Havlíček 1960
 Spiriferida - Delthyrididae
Howellella sp.
Howellella sp. Kozlowski 1946
 Athyridida - Athyrididae
Protathyris sp.