Where: Anhui, China (29.9° N, 118.1° E: paleocoordinates 24.3° N, 155.5° E)
• coordinate stated in text
• local area-level geographic resolution
When: Siphogonuchites triangularis–Paragloborilus subglobosus small shelly zone, Hetang Formation, Meishucunian (530.7 - 521.0 Ma)
• Because the stone coal beds of the Hetang Formation can be probably correlated with the black shales of the lower Shiyantuo Formation, which overlies the Watsonella crosbyi (=Heraultipegma yunnanensis) assemblage in the Dahai Member of the Zhujiaqing Formation, the radiometric date of 534.6F0.5 from Siberia can be taken as a maximum age of the stone coal beds.
•
•The minimum age of the stone coal beds is constrained by the Atdabanian–Botomian boundary, approximately 520 Ma (Bowring and Erwin, 1998; Landing et al., 1998; Jenkins et al., 2002). The stone coal beds are therefore broadly constrained to be between 535 and 520 Ma, making the sponge fossils reported in this paper among the earliest known articulated sponges (see also Steiner et al., 1993).
Environment/lithology: marginal marine; lithified coal
Size classes: macrofossils, mesofossils, microfossils
Preservation: replaced with pyrite
Reposited in the NIGPAS
Primary reference: S. Xiao, J. Hu, X. Yuan, R. L. Parsley, and R. Cao. 2005. Articulated sponges from the Lower Cambrian Hetang Formation in southern Anhui, South China: their age and implications for the early evolution of sponges. Palaeogeography, Palaeoclimatology, Palaeoecology 220:89-117 [P. Wagner/H. Street/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 96370: authorized by Pete Wagner, entered by Hallie Street on 03.06.2010, edited by Sarah Tweedt
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Hexactinellida | |
| |
Lantianospongia palifera n. gen. n. sp.
Lantianospongia palifera n. gen. n. sp. Xiao et al. 2005 glass sponge | |
Sanshapentella dapingi, Gabelia sp., Diagoniella cyathiformis, Protospongia sp., Protospongia cf. conica, Protospongia gracilis n. sp., Triticispongia diagonata
Gabelia sp. Rigby and Murphy 1983 glass sponge
Protospongia sp. Salter 1864 glass sponge
Protospongia gracilis n. sp. Xiao et al. 2005 glass sponge | |
| |
Demospongiae | |
Choia ? striata Xiao et al. 2005 demosponge |