Somewhere in Guizhou (Cambrian to of China)

Also known as Wulonqing Member, Tsanglangpu Formation of Malong, Yunnan - Holmer et. al 1997

Where: Guizhou, China (26.8° N, 106.8° E: paleocoordinates 30.8° N, 158.9° E)

When: Palaeolenus - Megapalaeolenus trilobite zone, Wulongqing Formation (Tsanglangpu Group), Atdabanian to Atdabanian (520.0 - 513.0 Ma)

• Regalado Fernandez & Francisco Sour-Tovar (2022) state that Dicerodiscus tsunyiensis is from the Olenellus zone. However: that's not a zone in Guizhou, and the North American zone. The equivalent zones would be the Palaeolenus and Megapalaeolenus zones from the Wulongqing member (now Wulongqing Formation).

• member-level stratigraphic resolution

Environment/lithology: marine; lithified siltstone

Size classes: macrofossils, mesofossils

Collection methods: mechanical,

Primary reference: P. A. Jell and J. M. Adrain. 2002. Available generic names for trilobites. Memoirs of the Queensland Museum 48(2):331-553 [N. Hughes/L. English/M. Hopkins]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 225091: authorized by Pete Wagner, entered by Pete Wagner on 25.04.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

 Agnostida - Hebediscidae