Yangjiadun, upper 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 (541.0 - 516.0 Ma)

• upper bed, 0.17 m thick, Palaeosulcachites-Lenatheca-Zhijinites-Heraultipegma-Sachites-Zeugites assemblage, also known as Tianzhushan Formation

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, sandy phosphorite

• dark-gray or black sandy siliceous phosphorite

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 107636: authorized by Wolfgang Kiessling, entered by Uta Merkel on 11.04.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Scyphozoa
 Anabaritida - Anabaritidae
Tiksitheca huangshandongensis Qian et al. 1979 jellyfish
Tiksitheca cf. licis Rozanov et al. 1969 jellyfish
"Tiksitheca korobovi" = Anabarites korobovi Rozanov and Missarzhevsky 1966 jellyfish
Anabarites trisulcatus Voronova and Missarzhevsky 1969 jellyfish
Cambrotubulus decurvatus Rozanov et al. 1969 jellyfish
Huangshandongella bella
  -
Huangshandongella bella Qian et al. 1979
Protopterygotheca
  -
Coeloscleritophora
 Chancelloriida - Chancelloriidae
 Sachitida - Siphogonuchitidae
"Palaeosulcachites shipaiensis" = Siphogonuchites triangularis
"Palaeosulcachites shipaiensis" = Siphogonuchites triangularis Qian 1977
Watsonella crosbyi
  -
"Heraultipegma varensalensis" = Watsonella crosbyi
"Heraultipegma varensalensis" = Watsonella crosbyi Grabau 1900
Helcionelloida
 Helcionellida - Helcionellidae
"Lapworthella honorabilis" = Obtusoconus honorabilis
"Lapworthella honorabilis" = Obtusoconus honorabilis Qian et al. 1979
Brachiopoda
 Tommotiida - Lapworthellidae
Hyolitha
 Orthothecida -
 Orthothecida - Orthothecidae
Lenatheca sp. Rozanov et al. 1969
 Orthothecida -
"Paragloborilus mirus" = Cupittheca mira, Turcutheca crasseocochlia
"Paragloborilus mirus" = Cupittheca mira He 1977
 Orthothecida - Circothecidae
"Circotheca subcurvata" = Conotheca subcurvata, "Circotheca obesa" = Conotheca subcurvata, "Circotheca longiconica" = Conotheca subcurvata, "Circotheca nana" = Conotheca subcurvata, Circotheca punctata, Circotheca transulcata
"Circotheca subcurvata" = Conotheca subcurvata Yü 1974
"Circotheca obesa" = Conotheca subcurvata Yü 1974
"Circotheca longiconica" = Conotheca subcurvata Yü 1974
"Circotheca nana" = Conotheca subcurvata Yü 1974
 Orthothecida -
Protoconodonta
  -
Protohertzina anabarica Missarzhevsky 1973
 Hyolithelminthida - Hyolithellidae