Xiuzigou, bed 15 (Cambrian of China)

Where: Henan, China (32.8° N, 111.5° E: paleocoordinates 19.9° N, 153.3° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Bergeronites-Mansuyia trilobite zone, Xugou Formation, Guzhangian (500.5 - 497.0 Ma)

• 29.44 m thick, Bergeronites-Mansuyia zone of Yang 1993, probably equivalent to Glyptagnostus stolidotus zone

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified lime mudstone

• open platform
• grey thick-bedded fine argillaceous banded micrite limestone

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: J. Yang, S. Yu, G. Liu, N. Su, M. He, J. Shang, H. Zhang, H. Zhu, Y. Li and G. Yan. 1993. Cambrian stratigraphy, lithofacies, paleogeography and trilobite faunas of East Qinling-Dabashan Mountains, China 1-246 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 127078: authorized by Wolfgang Kiessling, entered by Uta Merkel on 23.04.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Corynexochida - Kaolishaniidae
Mansuyia sp. Sun 1924 trilobite
 Ptychopariida - Crepicephalidae
Coosia "sp. 1" Walcott 1911 trilobite
Coosia "sp. 2" Walcott 1911 trilobite
 Lichida - Damesellidae
Damesellidae indet., "Bergeronites (Palaeadotes) punctatus n. sp." = Palaeadotes
Damesellidae indet. Kobayashi 1935 trilobite
"Bergeronites (Palaeadotes) punctatus n. sp." = Palaeadotes trilobite