Also known as Chengjiang biota

Where: Yunnan, China (25.1° N, 102.7° E)

• Paleocoordinates: 3.5° N, 74.6° E (Wright 2013)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Eoredlichia zone, Maotianshan Shale Member (Yuanshan Formation), Atdabanian (521.0 - 516.0 Ma)

• AGE: Modified from Caerfai to Atdabanian by Hendy (2/2009) following Steiner (2005, 2007).

• member-level stratigraphic resolution

Environment/lithology: prodelta; lithified, gray, green, yellow, carbonaceous mudstone

Size classes: macrofossils, mesofossils

Preservation: adpression, soft parts

Collection methods: There are other organisms in the Maotianshan shale biota and are mentioned in the article only to stress that several animal phyla had already invaded the mid water environment by Early Cambrian times.

Primary reference: J. M. C. Vannier and J. Y. Chen. 2000. The Early Cambrian colonization of pelagic niches exemplified by Isoxys (Arthropoda). Lethaia 33(4):295-311 [M. Patzkowsky/P. Borkow/O. Alfaro]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 10748: authorized by Mark Patzkowsky, entered by Phil Borkow on 19.06.2001

Creative Commons license: CC0 (CC0)