Rhynchonellata - Atrypida - Atrypinidae
Alternative combination: Zygospirella putilla
Synonyms: Atrypa praemarginalis Savage 1913, Eospirigerina praemarginalis Savage 1913, Spirigerina (Eospirigerina) praemarginalis Savage 1913
Belongs to Eospirigerina according to J. Jin and D. A. T. Harper 2024
See also Amsden 1974, Boucot and Johnson 1967 and Savage 1913
Sister taxa: Eospirigerina pennata, Eospirigerina porkuniana, Eospirigerina sulevi, Eospirigerina tripartita, Eospirigerina vetusta, Eospirigerina yulangensis
Ecology: stationary epifaunal suspension feeder
Distribution:
• Silurian of China (8 collections), Mongolia (1), the Russian Federation (1), United States (6: Iowa, Missouri)
• Ordovician of Canada (6: Northwest Territories, Québec, Yukon), the Russian Federation (3), United States (3: Illinois, Missouri)
Total: 28 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.