Also known as Bed 8 of Qian & Bengston.
Where: Yunnan, China (24.7° N, 102.6° E: paleocoordinates 37.1° N, 162.8° E)
• coordinate stated in text
• local area-level geographic resolution
When: Siphogonuchites - Paragloborilus small shelly zone, Dahai Member (Zhujiaqing Formation), Meishucunian to Meishucunian (530.7 - 521.0 Ma)
• Watsonella crosbyi
• bed-level stratigraphic resolution
Environment/lithology: lithified, phosphatic, gray, silty, cherty/siliceous siltstone and lithified, black, argillaceous, silty dolomite
Size classes: mesofossils, microfossils
Preservation: cast
Collection methods: Specimens stored at Nanjing Institue of Geology and Palaeontology, Academia Sinica, Nanjing, China
Primary reference: Y. Qian and S. Bengtson. 1989. Palaeontology and biostratigraphy of the Early Cambrian Meishucunian Stage in Yunnan Province, South China. Fossils and Strata 24:1-156 [P. Wagner/P. Wagner/S. Nurnberg]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 96449: authorized by Pete Wagner, entered by Pete Wagner on 08.06.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Hyolitha | |
Cupittheca mira He 1977 | |
Conotheca subcurvata Yü 1974 | |
Maikhanellidae | |
Aegides seperbes Jiang 1980 | |
Siphogonuchites triangularis, Lomasulcachites macrus, Lopochites cf. latazonalis, Lopochites latazonalis, Lopochites quadrogonus, Drepanochites dilatatus
Siphogonuchites triangularis Qian 1977
Lomasulcachites macrus Luo et al. 1982
Lopochites cf. latazonalis Qian 1977
Lopochites latazonalis Qian 1977
Lopochites quadrogonus Qian 1984
Drepanochites dilatatus Luo et al. 1982 | |
Aculifera | |
Halkieria undulata, Halkieria sthenobasis, Halkieria wangi, Halkieria sacciformis, "Ocruranus finial" = Ocruranus finial, "Ocruranus subpentaedrus" = Ocruranus finial, "Eohalobia diandongensis" = Ocruranus finial
Halkieria sthenobasis Luo and Jiang 1982
Halkieria wangi Parkhaev and Demidenko 2010
Halkieria sacciformis Meshkova 1969
"Ocruranus finial" = Ocruranus finial Liu 1979
"Ocruranus subpentaedrus" = Ocruranus finial Liu 1979
"Eohalobia diandongensis" = Ocruranus finial Liu 1979 | |
Helcionelloida | |
"Igarkiella mirabilis" = Carinopelta mirabilis Yü 1979
Protoconus elegans Yü 1979
Protoconus crestatus Yü 1979 | |
Helcionella radiata, Asiapatella undulata, Asiapatella sinuata, Truncatoconus yichangensis, Truncatoconus campylurus, Obtusoconus honorabilis, "Igorella emeiensis" = Securiconus emeiensis, "Bemella simplex" = Securiconus simplex, "Igorella maidipingensis" = Oelandiella maidipingensis, "Archaeospira cf. ornata" = Oelandiella korobkovi
Helcionella radiata Yü 1979
Asiapatella undulata Yu 1981
Asiapatella sinuata Parkhaev and Demidenko 2010
Truncatoconus yichangensis Yü 1979
Truncatoconus campylurus Jiang 1980
Obtusoconus honorabilis Qian et al. 1979
"Igorella emeiensis" = Securiconus emeiensis Yü 1979
"Bemella simplex" = Securiconus simplex Yü 1979
"Igorella maidipingensis" = Oelandiella maidipingensis Yü 1974
"Archaeospira cf. ornata" = Oelandiella korobkovi Vostokova 1962 listed as Latouchella korobkovi by Parkhaev 2010
| |
Pseudoscenella levigata Parkhaev and Demidenko 2010 | |
Cambroclavida | |
Paracarinachites sinensis Luo et al. 1982 | |
Archaeooides granulatus | |
Archaeooides granulatus Qian 1977 | |
Coeloscleritophora | |
Platyspinites elegans Parkhaev and Demidenko 2010 | |
Chancelloria symmetrica Vassiljeva 1985
Chancelloriella bella Demidenko 2000 | |
Annelitellus yangtzensis Qian 1989 |