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
Annelitellus yangtzensis Qian 1989 | |
Hyolitha | |
Conotheca subcurvata Yü 1974 | |
Cupittheca mira He 1977 | |
Maikhanellidae | |
Aegides seperbes Jiang 1980 | |
Helcionelloida | |
Obtusoconus honorabilis, Asiapatella sinuata, Asiapatella undulata, Truncatoconus campylurus, Truncatoconus yichangensis, "Archaeospira cf. ornata" = Oelandiella korobkovi, "Igorella maidipingensis" = Oelandiella maidipingensis, "Igorella emeiensis" = Securiconus emeiensis, "Bemella simplex" = Securiconus simplex, Helcionella radiata
Obtusoconus honorabilis Qian et al. 1979
Asiapatella sinuata Parkhaev and Demidenko 2010
Asiapatella undulata Yu 1981
Truncatoconus campylurus Jiang 1980
Truncatoconus yichangensis Yü 1979
"Archaeospira cf. ornata" = Oelandiella korobkovi Vostokova 1962 listed as Latouchella korobkovi by Parkhaev 2010
"Igorella maidipingensis" = Oelandiella maidipingensis Yü 1974
"Igorella emeiensis" = Securiconus emeiensis Yü 1979
"Bemella simplex" = Securiconus simplex Yü 1979
Helcionella radiata Yü 1979 | |
"Igarkiella mirabilis" = Carinopelta mirabilis Yü 1979
Protoconus elegans Yü 1979
Protoconus crestatus Yü 1979 | |
Pseudoscenella levigata Parkhaev and Demidenko 2010 | |
Siphogonuchites triangularis, Lomasulcachites macrus, Drepanochites dilatatus, Lopochites quadrogonus, Lopochites cf. latazonalis, Lopochites latazonalis
Siphogonuchites triangularis Qian 1977
Lomasulcachites macrus Luo et al. 1982
Drepanochites dilatatus Luo et al. 1982
Lopochites quadrogonus Qian 1984
Lopochites cf. latazonalis Qian 1977
Lopochites latazonalis Qian 1977 | |
Aculifera | |
Halkieria undulata, Halkieria wangi, Halkieria sacciformis, Halkieria sthenobasis, "Ocruranus finial" = Ocruranus finial, "Ocruranus subpentaedrus" = Ocruranus finial, "Eohalobia diandongensis" = Ocruranus finial
Halkieria wangi Parkhaev and Demidenko 2010
Halkieria sacciformis Meshkova 1969
Halkieria sthenobasis Luo and Jiang 1982
"Ocruranus finial" = Ocruranus finial Liu 1979
"Ocruranus subpentaedrus" = Ocruranus finial Liu 1979
"Eohalobia diandongensis" = Ocruranus finial Liu 1979 | |
Archaeooides granulatus | |
Archaeooides granulatus Qian 1977 | |
Coeloscleritophora | |
Chancelloriella bella Demidenko 2000
Chancelloria symmetrica Vassiljeva 1985 | |
Platyspinites elegans Parkhaev and Demidenko 2010 | |
Cambroclavida | |
Paracarinachites sinensis Luo et al. 1982 |