Guangwei village, Shitangshan section, Wulongqing Fm (Cambrian of China)

Where: Yunnan, China (24.9° N, 102.8° E: paleocoordinates 34.3° N, 159.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Palaeolenus trilobite zone, Wulongqing Formation, Botomian (516.0 - 513.0 Ma)

• Stage 4. Canglangpuan.

•Megapalaeolenus Zone (= upper Canglangpuan, Stage 4 of the South Chinese regional biostratigraphical zonation)

• member-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified mudstone and siltstone

• The Wulongqing Formation is about 60 m thick and overlies the fine-grained sandstones of the Hongjingshao Formation (Fig. 2). The contact to the underlying unfossiliferous Hongjingshao Formation is characterized by a several-decimetre-thick basal conglomerate of the lowermost part of the Wulongqing Formation, probably indicating a regional transgression event in SW China.
• Monotonous sequence of mudstones with siltstone intercalations, the lower part of which is mainly composed of mudstone with few thin-bedded silt-sandstone layers. The micaceous siltstone and fine-grained sandstone beds become more abundant towards the top of the Wulongqing Formation. The mudstone beds display erosive bases and an upward fining. Multiple-graded silt-mud couplets are frequent within the mudstone beds. Sole marks, trace fossils and microbial mat structures are common at the base of the siltstone beds.

Size classes: macrofossils, mesofossils

Primary reference: B. Weber, S. Hu, M. Steiner and F. Zhao. 2012. A diverse ichnofauna from the Cambrian Stage 4 Wulongqing Formation near Kunming (Yunnan Province, South China). Bulletin of Geosciences 87(1):71-92 [W. Kiessling/M. Krause]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 139440: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 12.02.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Guanshanichnus glockerichnoides
  -
Guanshanichnus glockerichnoides Weber et al. 2012
igen. et isp. nov.
 Ichnofossils -
Diplichnites sp. Dawson 1873
? Thalassinoides sp. Ehrenberg 1944
Plagiogmus sp. Roedel 1929
Teichichnus sp. Seilacher 1955
Gordia sp. Emmons 1844
Planolites sp. Nicholson 1873
Psammichnites sp. Torell 1870
Palaeophycus sp. Hall 1847
Merostomichnites sp. Packard 1900
Phycodes sp. Richter 1850