Acrothyra gregaria is a species of gregarious brachiopod known from the Middle Cambrian Burgess Shale. 253 specimens of Acrothyra are known from the Greater Phyllopod bed, where they comprise 0.5% of the community.
References
Notes
- BABCOCK, L. E., R. A. ROBISON, M. N. REES, S. PENG, AND M. R. SALTZMAN. 2007. The global boundary stratotype section and point (GSSP) of the Drumian Stage (Cambrian) in the Drum Mountains, Utah, USA. :, 30(002):85-95.
- MATTHEW, G. F. 1901. Acrothyra. A new genus of Etcheminian brachiopods. Nat. Hist. Soc. New Brunswick, Bull, 4:303-304.
- ROWELL, A. H. 1966. Revision of some Cambrian and Ordovician inarticulate brachiopods.
- YOCHELSON, E. L. 1961. The operculum and mode of life of Hyolithes. Journal of Paleontology:152-161.
External links
- "Acrothyra gregaria" . Burgess Shale Fossil Gallery. Virtual Museum of Canada. 2011. (Burgess Shale species 17)