Hyolitha - Orthothecida - Allathecidae
Alternative combination: Orthotheca degeeri
Full reference: G. Holm. 1893. Sveriges kambrisk-siluriska Hyolithdae och Conularidae. Sveriges Geologiska Undersökning, Afhandlingar och Uppsatser C 112:1-172
Belongs to Allatheca according to E. Landing et al. 1989
See also Holm 1893 and Rozanov et al. 1969
Sister taxa: Allatheca concinna, Allatheca corrugata, Allatheca minor, Allatheca nanjiangensis
Ecology: stationary epifaunal suspension feeder
Distribution:
• Cambrian of Canada (9: Newfoundland and Labrador, Nova Scotia collections), the Russian Federation (6), the United Kingdom (1), United States (3: Massachusetts)
• Placentian of Canada (1: Nova Scotia), United States (3: Massachusetts)
Total: 23 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.