Crumillospongia biporosa Rigby 1986

Taxonomy

Sponge

Kingdom: Animalia
Phylum: Porifera Grant 1836
Class: Demospongea Sollas, 1883
Order: Protomonaxonida Finks & Rigby, 2004
Family: Hazeliidae De Laubenfels, 1955
Genus: Crumillospongia
Species: Crumillospongia biporosa
Author Citation Rigby 1986

Geological Time Scale

Eon: Phanerozoic
Era: Paleozoic
Period: Cambrian
Sub Period: None
Epoch: Series 2 Epoch
International Age: "Stage 4"

Stratigraphy

Wulongqing Formation

Provenance

Acquired by: Purchase/Trade

Dimensions

Length: 1 cm

Location

Gaoloufang
Kunming Town
Yunnan Province
China

• cambrian
• crumillospongia
• guanshan biota
• kunming
• tff-oilshale-po2674
• wulongqing formation

Comments

Taxonomy from Mindat.org.
Diagnosis (Finks & Rigby 2004, p. 28): “Sack-shaped to globular or globose sponges with thin walls of principally vertical, subparallel, monaxial spicules that form tracts around circular canals of at least two sizes; gastral layer a vertical, monaxial thatch that is less perforate; skeleton with weakly developed tufts; marginalia or prostalia absent”.
References:
Rigby, J. K. and Collins, D. (2004). Sponges of the Middle Cambrian Burgess Shale and Stephen Formations, British Columbia. Royal Ontario Museum Contributions in Science 1:1-155.
Finks, R.M. & Rigby, J.K. (2004). Paleozoic Demosponges, 9–175. In KAESLER, R.C. (ed.) Treatise on Invertebrate Paleontology. Part E, Vol. 3 (revised). Porifera (Demospongea, Hexactinellida, Heteractinida, Calcarea). 902 pp. Geological Society of America, Kansas.
Wang, P.-li.; Zhao, Y.-long.; Yang, X.-lian.; Yang, R.-jun. (2005), Crumillospongia biporosa (sponge) from the early Cambrian Niutitang biota in Guizhou Province. Acta Micropalaeontologica Sinica 22(2): 196-201.
GARCÍA-BELLIDO, D.C., DIES ÁLVAREZ, M.E., GÁMEZ VINTANED, J.A., LIÑÁN, E. & GOZALO, R. (2011). First report of Crumillospongia (Demospongea) from the Cambrian of Europe (Murero biota, Spain). Bulletin of Geosciences 86(3), 641–650 (5 figures, 1 table). Czech Geological Survey, Prague. ISSN 1214-1119.
Zhao, Jun; Li, Yujing; Selden, Paul A.; Cong, Peiyun (2020). New occurrence of the Guanshan Lagerstätte (Cambrian Series 2, Stage 4) in the Kunming area, Yunnan, southwest China, with records of new taxa. Alcheringa: An Australasian Journal of Palaeontology, (), 1–13.