Harpidium-Stricklandia-Merciella Comm., Yichang Co., Hubei Prov. (Silurian of China)

Where: Hubei, China (30.7° N, 111.3° E: paleocoordinates 3.8° N, 127.0° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Llandovery (443.4 - 433.4 Ma)

• early late Llandovery

Environment/lithology: marine; mudstone

• Articulated shells and mudstone matrix consistent with quiet water. Faunal composition indicates BA 4 (absence of deep or quiet-water taxa in abundance). Other elements of fauna suggest BA 3-4 boundary.
• "mudstone matrix"

Collection methods: Only brachiopods listed by genus; rest of fauna said to be rich.

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 25793: authorized by Michael Foote, entered by Michael Foote on 25.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Rugosa -
Rugosa indet. horn coral
Stromatoporoidea
 Stromatoporoidea -
Stromatoporoidea indet. stromatoporoid sponge
Graptolithina
  -
Rhynchonellata
 Orthida - Dalmanellidae
Isorthis sp. Kozlowski 1929
 Spiriferida - Cyrtiidae
Eospirifer sp. Schuchert 1913
 Atrypida -
Zygospiraella sp. Nikiforova 1961
 Atrypida - Lissatrypidae
Lissatrypa sp. Twenhofel 1914
 Pentamerida - Stricklandiidae
Stricklandia sp. Billings 1859
 Pentamerida - Virgianidae
Brevilamnulella sp. Amsden 1974
Pleurodium sp. Wang 1955
 Pentamerida - Pentameridae
Harpidium sp. Kirk 1925
Strophomenata
 Strophomenida - Aegiromenidae
Aegiria sp. Opik 1933
 Strophomenida - Leptellinidae
"Merciella sp." = Leptellina (Merciella)
"Merciella sp." = Leptellina (Merciella) Lamont and Gilbert 1945
 Strophomenida - Leptostrophiidae
Mesoleptostrophia sp. Harper and Boucot 1978
 Strophomenida - Furcitellidae
Craniata
 Trimerellida - Trimerellidae
Dinobolus sp. Hall 1871
Cephalopoda
 Nautiloidea -
Nautiloidea indet. Agassiz 1847 nautiloid
Trilobita
  -
Trilobita indet. Walch 1771 trilobite