Unit 36-38, Dawan Fm., Upper Mbr., Huanghuachang and Yiching, Hubei Prov., China (Ordovician of China)

Where: Hubei, China (33.0° N, 111.0° E: paleocoordinates 12.8° N, 140.9° E)

• local area-level geographic resolution

When: Upper Member (Dawan Formation), Arenig (478.6 - 466.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified, argillaceous carbonate and shale

Primary reference: X. Wang, L. Xian, S. Ni, Q. Zheng, G. Xu, T. Zhou, C. Lai and Z. Li. 1987. Biostratigraphy of the Yangtze Gorge Area. Part (2) Early Paleozoic Era. Geological Publishing House, Beijing 43-142 [A. Miller/P. Novack-Gottshall]more details

PaleoDB collection 4709: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 17.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
? Protocycloceroides sp., "Trinucleid" indet., Daiwania sp., Leiomegalaspides sp.
Trilobita
 Asaphida - Asaphidae
Pseudobasilicus sp., Megalaspides sp.
Pseudobasilicus sp. Reed 1930 trilobite
Megalaspides sp. Brögger 1886 trilobite
 Trinucleida - Trinucleidae
Ningkianolithus sp.
Ningkianolithus sp. Lu 1954 trilobite
 Proetida - Telephinidae
Phorocephala sp., Carolinites sp.
Phorocephala sp. Lu 1965 trilobite
Carolinites sp. Kobayashi 1940 trilobite
 Corynexochida - Illaenidae
Illaenus sp.
Illaenus sp. Dalman 1827 trilobite
 Corynexochida - Leiostegiidae
Pseudocalymene sp.
Pseudocalymene sp. Pillet 1974 trilobite
Artiopoda
 Agnostida - Metagnostidae
Trinodus sp., Geragnostus sp.
Trinodus sp. M'Coy 1846
Geragnostus sp. Howell 1935
Ostracoda
 Palaeocopida - Leperditellidae
Leperditella sp.
 Palaeocopida - Euprimitiidae
Euprimitia sp.
Rhynchonellata
 Pentamerida - Clarkellidae
Yangtzeella sp.
Yangtzeella sp. Kolarova 1925
 Protorthida - Skenidiidae
Skenidioides sp.
Skenidioides sp. Schuchert and Cooper 1931
 Orthida - Paurorthidae
Nereidella sp.
 Orthida - Glyptorthidae
Lepidorthis sp.
Lepidorthis sp. Wang 1955
 Orthida - Orthidae
Sinorthis sp.
 Orthida - Archaeorthidae
Nicoloidea sp.
Nicoloidea sp. Zeng 1987
 Orthida - Euorthisinidae
Euorthisina sp.
Strophomenata
 Billingsellida - Polytoechiidae
Martellia sp.
Martellia sp. Wirth 1936
Gastropoda
 Euomphalina - Ophiletidae
Ecculiomphalus sp.
Ecculiomphalus sp. Portlock 1843 snail
Cephalopoda
 Ellesmerocerida - Protocycloceratidae
Protocycloceras sp.
 Endocerida - Endoceratidae
Chisiloceras sp.
Chisiloceras sp. Gortani 1934
Conodonta
 Prioniodontida - Acodontidae
Acodus sp.
Acodus sp. Pander 1856 conodont
 Prioniodontida - Balognathidae
Baltoniodus sp.
Baltoniodus sp. Lindstrom 1971 conodont
 Protopanderodontida - Cornuodontidae
Cornuodus sp.
Cornuodus sp. conodont
 Protopanderodontida - Protopanderodontidae
Drepanodus sp., Protopanderodus sp., Scolopodus sp.
Drepanodus sp. Pander 1856 conodont
Protopanderodus sp. Lindström 1971 conodont
Scolopodus sp. conodont
 Paraconodontida -
Westergaardodina sp.
Westergaardodina sp. Müller 1959 conodont
Pterobranchia
 Graptoloidea - Retiolitidae
Glyptograptus sp.
Glyptograptus sp. Lapworth 1873 graptolite
 Graptoloidea - Phyllograptidae
Tetragraptus sp.
Tetragraptus sp. Salter 1863 graptolite