Donggongsi Horizon 4 (Ordovician of China)

Where: Guizhou, China (27.8° N, 106.9° E: paleocoordinates 13.5° N, 131.3° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Pagoda Formation, Caradoc (458.4 - 449.5 Ma)

Environment/lithology: offshore shelf; lithified, shelly/skeletal, gray lime mudstone

• Light-grey, thick-bedded shrinkage biocalcilutites

Size classes: mesofossils, microfossils

Collected by Gongzheng Yin, Ronald P. Tripp, Zhiyi Zhoum Zhiqiang Zhou, Wenwei Yuan

Collection methods: surface (in situ), mechanical,

Primary reference: G. Yin, R. P. Tripp, Z. Zhou, Z. Zhou, and W. Yuan. 1999. Trilobites and biofacies of the Ordovician Pagoda Formation, Donggongsi of Zunyi, Guizhou Province, China. Transactions of the Royal Society of Edinburgh 90:203-220 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 182199: authorized by Melanie Hopkins, entered by Melanie Hopkins on 13.10.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Phacopida - Pliomeridae
 Phacopida - Cheiruridae
Sphaerexochus fibrisulcatus Lu 1975 trilobite
Hadromeros sp. Lane 1971 trilobite
 Trinucleida - Raphiophoridae
Lonchodomas sp. Angelin 1854 trilobite
 Asaphida - Cyclopygidae
 Asaphida - Remopleurididae
Dislobosaspis guizhouensis Yin 1978 trilobite
Dislobosaspis zunyiensis Yin 1978 trilobite
Amphitryon sp. Hawle and Corda 1874 trilobite
 Proetida - Tropidocoryphidae
 Proetida - Telephinidae
 Corynexochida - Illaenidae
Parillaenus orbiconvexus Ji 1986 trilobite
 Corynexochida - Styginidae
Cekovia striata Ji 1986 trilobite
Phillipsinella sp. Novak 1885 trilobite
 Corynexochida - Panderiidae
Panderia orbiculata Ji 1986 trilobite