Tergomya - Cyrtonellida - Cyrtolitidae
Alternative combination: Cyrtolites (Cyrtolites) retrorsus
Synonyms: Cyrtolites fillmorensis Ulrich and Scofield 1897, Cyrtolites retrorsus fillmorensis Ulrich and Scofield 1897
Full reference: E. O. Ulrich and W. H. Scofield. 1897. The Lower Silurian Gastropoda of Minnesota. The Paleontology of Minnesota 39(2):813-1081
Belongs to Cyrtolites according to P. J. Wagner 2023
See also Bassler 1932, Knight and Bridge 1944, Ulrich and Scofield 1897 and Wahlman 1992
Sister taxa: Cyrtolites (Cyrtolites), Cyrtolites (Cyrtonella), Cyrtolites budleighensis, Cyrtolites claysferryensis, Cyrtolites craigensis, Cyrtolites dilatus, Cyrtolites disjunctus, Cyrtolites grandis, Cyrtolites hornyi, Cyrtolites inornatum, Cyrtolites inprobus, Cyrtolites insculptus, Cyrtolites nodosus, Cyrtolites occultus, Cyrtolites ornatus, Cyrtolites rugosus, Cyrtolites seminulum, Cyrtolites sinuatus, Cyrtolites sinuosus, Cyrtolites thraivensis, Cyrtolites trentonensis, Cyrtolites tuboides, Cyrtolites undulatus
Ecology: slow-moving low-level epifaunal grazer
Distribution:
• Ordovician of United States (43: Illinois, Iowa, Kentucky, Minnesota, Missouri, Ohio, Tennessee collections)
Total: 43 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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