Section 1, BS6 (Cambrian to of China)

Where: Gansu, China (41.5° N, 96.6° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Shuangyingshan Formation, Atdabanian to Atdabanian (521.0 - 509.0 Ma)

• Series 2

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, shelly/skeletal, gray grainstone

• Greyish white and grey thin-bedded and medium-bedded biocalcarenites

Size classes: macrofossils, mesofossils

Collected by Zhou Zhiqiang; reposited in the NIGPAS

Collection methods: surface (in situ), mechanical,

Primary reference: J. Bergström, Z. Zhou, P. Ahlberg and N. Axheimer. 2014. Upper lower Cambrian (provisional Cambrian Series 2) trilobites from northwestern Gansu Province, China. Estonian Journal of Earth Sciences 63(3):123-143 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 181358: authorized by Melanie Hopkins, entered by Melanie Hopkins on 08.09.2016

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Artiopoda
 Agnostida - Weymouthiidae
Tannudiscus conicus
 Agnostida - Eodiscidae
Pagetides (Discomesites) huochengensis
Pagetides (Discomesites) huochengensis
questionably assigned to species
Trilobita
 Corynexochida - Dorypygidae
Kootenia sp.
Kootenia sp. Walcott 1899 trilobite
 Corynexochida - Edelsteinaspididae
Edelsteinaspis sp.
Edelsteinaspis sp. Lermontova 1940 trilobite
 Corynexochida - Dinesidae
Dinesus spinellosus
 Corynexochida - Zacanthoididae
Ptarmiganoides "sp. 1"
Ptarmiganoides "sp. 1" Rasetti 1951 trilobite
questionably assigned to genus