Shenjiawan, unit 12, 27 (Cambrian of China)

Where: Hunan, China (29.1° N, 111.0° E: paleocoordinates 20.7° N, 147.1° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Rhaptagnostus ciliensis-Onchonotellus cf. kuruktagensis trilobite zone, Huaqiao Formation, Taoyuanian (498.5 - 485.4 Ma)

• Sample 27 of bed 12. Peng 1992 included the bed in the Bitiao Formation, but following revision of stratigraphic nomenclature (Peng & Robison, 2000), the Huaqiao, Chefu, and Bitiao formations have been grouped into a single unit, the Huaqiao Formation.

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified limestone

• Jiangnan Slope Belt
• argillaceous, laminated limestone

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: S. Peng. 1992. Upper Cambrian biostratigraphy and trilobite faunas of the Cili-Taoyuan area, northwestern Hunan, China. Memoir of the Association of Australasian Palaeontologists 13:1-119 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 126710: authorized by Wolfgang Kiessling, entered by Uta Merkel on 12.04.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Asaphida - Ceratopygidae
"Proceratopyge cf. truncata" = Proceratopyge truncatus
"Proceratopyge cf. truncata" = Proceratopyge truncatus Yang 1977 trilobite
 Ptychopariida - Catillicephalidae
Onchonotellus cf. kuruktagensis Zhang 1981 trilobite
 Olenida - Eulomidae
Acrocephalaspina cf. longa Ergaliev 1980 trilobite
Ketyna cf. karatauensis Lisogor 1977 trilobite
Artiopoda
 Agnostida - Diplagnostidae