Laoyingshan, 27A (Cambrian of China)

Where: Anhui, China (32.6° N, 116.9° E: paleocoordinates 20.1° N, 156.1° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Qiaotouaspis trilobite zone, Laoyingshan Formation, Duyunian (514.0 - 509.0 Ma)

• samples NC005 and NC005-1; Paragraulos zone of Yuan and Li 1999, Qiaotouaspis (=Paraziboaspis) zone of N China Platform, Lungwangmiaoan, upper Duyunian, stage 4 of Cambrian series 2

• bed-level stratigraphic resolution

Environment/lithology: lithified limestone

• N China Platform
• Laoyingshan Formation: light grey, yellowish green and grey medium- to thick-bedded microsparite bioclastic limestones, intercalated with thin-bedded oomicrite and some purple shales; bed 27 A: limestone

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: J. L. Yuan and Y. Li. 1999. Lower-Middle Cambrian boundary and trilobite fauna at Laoyingshan, Huainan, Anhui. Acta Palaeontologica Sinica 38(4):407-422 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 125434: authorized by Wolfgang Kiessling, entered by Uta Merkel on 10.03.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Orthida - Bohemiellidae
Wimanella sp.
Wimanella sp. Walcott 1908
Helcionelloida
 Helcionellida - Helcionellidae
Helcionella sp.
Helcionella sp. Grabau and Shimer 1909
Trilobita
 Redlichiida - Redlichiidae
Redlichia sp.
Redlichia sp. Cossmann 1902 trilobite
 Redlichiida - Agraulidae
Paragraulos calvatus, Paragraulos (Pseudoplesiagraulos) proximus, Paragraulos convexus n. sp., Qiannanagraulos tonicus
Paragraulos convexus n. sp. Yuan and Li 1999 trilobite
 Ptychopariida - Ptychopariidae
Laoyingshania triangularis n. gen. n. sp., Probowmania sp., ? Probowmania huainanensis n. sp., Wanhuaia granulosa n. gen. n. sp., Stoecklinia normalis, Eokaotaia sp., Eokaotaia laoyingshanensis n. sp., Plesiamecephalus conicus n. sp., Paraziboaspis intermedia n. sp.
Laoyingshania triangularis n. gen. n. sp. Yuan and Li 1999 trilobite
Probowmania sp. Kobayashi 1935 trilobite
? Probowmania huainanensis n. sp. Yuan and Li 1999 trilobite
Wanhuaia granulosa n. gen. n. sp. Yuan and Li 1999 trilobite
Eokaotaia sp. Yuan and Zhao 1994 trilobite
Eokaotaia laoyingshanensis n. sp. Yuan and Li 1999 trilobite
Plesiamecephalus conicus n. sp. Yuan and Li 1999 trilobite
Paraziboaspis intermedia n. sp. Yuan and Li 1999 trilobite
 Ptychopariida -
Paraantagmus latus n. sp.
Paraantagmus latus n. sp. Yuan and Li 1999 trilobite