Dayan (Cambrian of China)

Where: Guizhou, China (28.3° N, 106.3° E: paleocoordinates 31.8° N, 162.0° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Anabarites trisulcatus - Protohertzina anabarica small shelly zone, Dayan Member (Dengying Formation), Meishucunian (530.7 - 521.0 Ma)

• lower part of Dayan Member, Anabarites-Circotheca-Protohertzina assemblage. PJW: Dayan member is not used anymore, and hasn't been used in so long that I cannot track it down. However, the Anabarites trisulcatus - Protohertzina anabarica zone rock in the Dayan section is now the Maolongjing member.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified dolomite

Size class: macrofossils

Primary reference: Y. Qian and G. Yin. 1984. Small shelly fossils from the lowest Cambrian in Guizhou. Professional Papers of Stratigraphy and Palaeontology 13:91-124 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 106516: authorized by Wolfgang Kiessling, entered by Uta Merkel on 23.03.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Protoconodonta
  -
Protohertzina anabarica Missarzhevsky 1973
Hyolitha
 Orthothecida - Circothecidae
"Circotheca subcurvata" = Conotheca subcurvata, "Circotheca longiconica" = Conotheca subcurvata, "Circotheca obesa" = Conotheca subcurvata, Conotheca mammilata
"Circotheca subcurvata" = Conotheca subcurvata Yü 1974
"Circotheca longiconica" = Conotheca subcurvata Yü 1974
"Circotheca obesa" = Conotheca subcurvata Yü 1974
Conotheca mammilata Rozanov et al. 1969
Cambroclavida
  - Zhijinitidae
"Carinachites spinatus" = Paracarinachites sinensis
"Carinachites spinatus" = Paracarinachites sinensis Luo et al. 1982
Scyphozoa
 Anabaritida - Anabaritidae
Anabarites tristichus, "Anabarites trisulcatus" = Anabarites trisulcatus, "Anabarites obliquasulcatus" = Anabarites trisulcatus
Anabarites tristichus Rozanov et al. 1969 jellyfish
"Anabarites trisulcatus" = Anabarites trisulcatus Voronova and Missarzhevsky 1969 jellyfish
"Anabarites obliquasulcatus" = Anabarites trisulcatus Voronova and Missarzhevsky 1969 jellyfish