Yangjiadun, lower bed (Cambrian of China)

Where: Hubei, China (30.8° N, 111.2° E: paleocoordinates 27.9° N, 160.9° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Huangshandong Formation, Meishucunian (530.7 - 521.0 Ma)

• lower bed, 2 m thick, Anabarites-Circotheca-Protohertzina-Shipaitubulus assemblage, also known as Tianzhushan Formation, Lower Meishucunian

• bed-level stratigraphic resolution

Environment/lithology: lithified, sandy dolomite

• medium- or thick-layered light gray sandy dolomite

Size class: macrofossils

Primary reference: Y. Qian, M. Chen, and Y. Y. Chen. 1979. Hyolithids and other small shelly fossils from the Lower Cambrian Huangshandong Formation in the eastern part of the Yangtze Gorge. Acta Palaeontologica Sinica 18(3):207-230 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 107635: authorized by Wolfgang Kiessling, entered by Uta Merkel on 11.04.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Scyphozoa
 Anabaritida - Anabaritidae
Anabarites trisulcatus Voronova and Missarzhevsky 1969 jellyfish
Hyolitha
 Orthothecida - Circothecidae
"Circotheca nana" = Conotheca subcurvata
"Circotheca nana" = Conotheca subcurvata YĆ¼ 1974
Protoconodonta
  -
Protohertzina anabarica Missarzhevsky 1973