Sijiawan, Wangren, Bed 7, Daye County (Permian of China)

Where: Hubei, China (30.2° N, 115.1° E: paleocoordinates 13.8° N, 99.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Dalong Formation, Changhsingian (254.2 - 252.2 Ma)

• 9.1 m thick

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified, black, gray, cherty/siliceous shale and lithified, black lime mudstone

Size class: macrofossils

Primary reference: D. Z. Yang and F. Q. Yang. 1992. New materials of Late Permian ammonoids from southeastern Hubei. Acta Palaeontologica Sinica 31(5):595-604 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 95721: authorized by Matthew Clapham, entered by Matthew Clapham on 24.04.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Lingulata
 Lingulida - Lingulidae
Cephalopoda
 Goniatitida - Paragastrioceratidae
Sabaliceras wangrenense n. gen. n. sp. Yang and Yang 1992 ammonite
Pseudogastrioceras sp. Spath 1936 ammonite
 Goniatitida - Pseudohaloritidae
Neoaganides costatus n. sp. Yang and Yang 1992 ammonite
Neoaganides laevigatus n. sp. Yang and Yang 1992 ammonite
 Ceratitida - Paraceltitidae
Meitianoceras sphaelobatum n. sp. Yang and Yang 1992 ceratite
Meitianoceras paulum n. sp. Yang and Yang 1992 ceratite
 Ceratitida - Pleuronodoceratidae
Pleuronodoceras dayenense n. sp. Yang and Yang 1992 ceratite
Rotodiscoceras hubeiense n. sp. Yang and Yang 1992 ceratite
 Ceratitida - Liuchengoceratidae
Wangrenoceras rotalarium n. gen. n. sp.
Wangrenoceras rotalarium n. gen. n. sp. Yang and Yang 1992 ceratite
 Pseudorthocerida - Spyroceratidae
Lopingoceras sp. Shimanskiy 1962