Gastropoda - Euomphalina - Platyceratidae
Alternative spelling: Cyclonema (Dyeria)
Full reference: E. O. Ulrich and W. H. Scofield. 1897. The Lower Silurian Gastropoda of Minnesota. The Paleontology of Minnesota 39(2):813-1081
Parent taxon: Platyceratidae according to P. J. Wagner 2023
See also Knight et al. 1960, Sepkoski 2002 and Ulrich and Scofield 1897
Sister taxa: Barynema, Basiplanus, Brokenriveria, Cancellator, Cancelloplatyceras, Compsonema, Crossoceras, Cyclonema, Devononema, Euthyrhachis, Globulonema, Himantonia, Lotzia, Naticellina, Naticonema, Naticonoda, Natirhenia, Nonorios, Obscuropsis, Paffrathia, Palaeocapulus, Platyceras, Platyostoma, Platyschisma, Ploconema, Praenatica, Pseudoplatyceras, Pseudorthonychiinae, Ptychospirina, Radvanospira, Rhabdocantha, Spinyplatyceras, Spiranodus, Spironemella, Strophostylus, Strotostoma, Stuckenbergispira, Tachloconcha
Subtaxa: Dyeria costatus
Type: Cyrtolites costatus
Distribution:
• Silurian of Germany (1 collection)
• Ordovician of United States (1: Ohio)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.