PBDB Collection

Kunming, Yu'anshan Formation, 0–5 cm above the seafloor (Cambrian of China)

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

• Paleocoordinates: 12.2° N, 66.6° E (Wright 2013)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Yu'anshan Formation, Early/Lower Cambrian (538.8 - 506.5 Ma)

Environment/lithology: offshore; silty mudstone and mudstone

• mudstone and silty mudstone of the Yu'anshan Formation's Lithofacies 2 and 3,which represent deposits during the early stages of the regressive phase in a proximal offshore to lower shoreface environment

Size class: microfossils

Primary reference: W. Wu, M. Zhu, and M. Steiner. 2014. Composition and tiering of the Cambrian sponge communities. Palaeogeography, Palaeoclimatology, Palaeoecology 398:86-96 [W. Kiessling/M. Krause]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 156226: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 13.05.2014

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names

Demospongiae
Protomonaxonida - Leptomitidae	Leptomitella conica, Leptomitella confusa, Leptomitus teretiusculus, Paraleptomitella globula, Paraleptomitella dictyodroma Leptomitella conica Chen et al. 1989 demosponge Leptomitella confusa Chen et al. 1989 demosponge Leptomitus teretiusculus Chen et al. 1989 demosponge Paraleptomitella globula Chen et al. 1989 demosponge Paraleptomitella dictyodroma Chen et al. 1989 demosponge
Protomonaxonida - Wapkiidae	Wapkia grandis Wapkia grandis Walcott 1920 demosponge
Protomonaxonida - Halichondritidae	Halichondrites cf. elissa Halichondrites cf. elissa Walcott 1920 demosponge
Protomonaxonida - Choiidae	Choiaella radiatia, Choiaella cf. radiatia, Allantospongia mica, Choia ridley, Choia hindei, Choia carteri, Choia cf. utahensis Choiaella radiatia demosponge Choiaella cf. radiatia demosponge Allantospongia mica Rigby and Hou 1995 demosponge Choia ridley demosponge Choia hindei Dawson 1896 demosponge Choia carteri Walcott 1920 demosponge Choia cf. utahensis Walcott 1920 demosponge
Protomonaxonida - Hamptoniidae	Hamptonia chengjiangensis Hamptonia chengjiangensis Wu et al. 2014 demosponge
Halichondrida -	Ischnspongia dendritica, Ptilispongia maotianshanensis n. sp. Ischnspongia dendritica Wu et al. 2014 demosponge Ptilispongia maotianshanensis n. sp. Wu et al. 2014 demosponge
Verticillitida - Colospongiidae	"Cystospongia globosa" = Imbricatocoelia "Cystospongia globosa" = Imbricatocoelia demosponge
Hexactinellida
Reticulosa - Dictyospongiidae	Hyalosinica sp. Hyalosinica sp. Steiner et al. 1993 glass sponge
Reticulosa -	Valospongia cf. gigantis Valospongia cf. gigantis glass sponge
Reticulosa - Protospongiidae	Protospongia sp., Saetaspongia densa, Triticispongia diagonata, Quadrolaminiella diagonalis, Quadrolaminiella crassa Protospongia sp. Salter 1864 glass sponge Saetaspongia densa Mehl and Reitner 1993 glass sponge Triticispongia diagonata Steiner et al. 1993 glass sponge Quadrolaminiella diagonalis Chen et al. 1990 glass sponge Quadrolaminiella crassa Chen et al. 1990 glass sponge