By222, Zhangjianao, Maanshan, Changyang district (Permian of China)

Where: Hubei, China (30.6° N, 110.8° E: paleocoordinates 2.3° S, 94.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Qixia Formation, Kungurian (279.3 - 272.3 Ma)

• Lower part of Qixia Formation

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, black, carbonaceous shale

Size class: microfossils

Collected by K.C. Yang, A.T. Mu in 1951; reposited in the NIGPAS

Primary reference: Y. T. Hou. 1954. Some Lower Permian ostracods from western Hupeh. Acta Palaeontologica Sinica 2:227-266 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 145991: authorized by Matthew Clapham, entered by Matthew Clapham on 14.06.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Ostracoda
 Palaeocopida - Amphissitidae
Polytylites simplex Hou 1954 ostracod
Amphissites sinensis Hou 1954 ostracod
 Palaeocopida - Kirkbyidae
Kirkbya canyonformis Hou 1954 ostracod
 Podocopida - Bairdiocyprididae
"Bairdia subrounda n. sp." = Silenites subrounda
"Bairdia subrounda n. sp." = Silenites subrounda Hou 1954 ostracod
 Podocopida - Bairdiidae
Bairdia "sp. D" M'Coy 1844 ostracod
Bairdia changyangensis Hou 1954 ostracod
Bairdia yangi n. sp. Hou 1954 ostracod
Bairdia fusiformis Hou 1954 ostracod
Bairdia sinensis Hou 1954 ostracod