Hyolitha - Orthothecida - Allathecidae
Full reference: A. Y. Rozanov, V. V. Missarzhevsky, N. A. Volkova, L. G. Voronova, I. N. Krylov, B.M. Keller, I. K. Korolyuk, K. Lendzion, R. Mikhnyar, N. G. Pykhova, and A. D. Sidorov. 1969. Tommotskiu jarus i problema nizhney granisty kembriya [The Tommotian Stage and the Cambrian lower Boundary problem]. Trudy Geoligske Institut Leningrad 206:1-379
Parent taxon: Allathecidae according to A. Y. Rozanov et al. 1969
See also Sepkoski 2002
Sister taxa: Antiquatheca, Doliutus, Exilitheca, Majatheca
Subtaxa: Allatheca concinna Allatheca corrugata Allatheca degeeri Allatheca minor Allatheca nanjiangensis
Type: Allatheca corrugata
Ecology: stationary epifaunal suspension feeder
Distribution:
• Placentian of Canada (1: Nova Scotia collection), United States (3: Massachusetts)
• Cambrian of Canada (10: Newfoundland and Labrador, Nova Scotia), China (7), India (1), Kazakhstan (1), the Russian Federation (29), the United Kingdom (1), United States (3: Massachusetts)
Total: 56 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.