Helcionelloida - Helcionellidae
Full reference: P. Y.u. Parkhaev. 2017. Davidonia nom. nov., a New Substitute Name for a Cambrian Gastropod Genus. Paleontological Journal 51(5):574-574
Parent taxon: Helcionellidae according to J. O. R. Ebbestad et al. 2024
See also Claybourn et al. 2019
Sister taxa: Absidaticonus, Aegitellus, Anabarella, Anabaroconus, Anhuiconus, Anuliconus, Asiapatella, Asperconella, Auricullina, Bemella, Calyptroconus, Capitoconus, Chuiliella, Cycloholcus, Daedalia, Emarginoconus, Eocyrtolites, Fenqiaronia, Figurina, Guadalquivirospira, Hampilina, Hampilininae, Helcionella, Hispanoconus, Hujiagouella, Igorella, Ilsanella, Kuonamkaella, Latouchella, Lenoconus, Leptostega, Manasoconus, Marocella, Minastirithella, Miroconulus, Nyuella, Obtusoconus, Oelandia, Oelandiella, Papilloconus, Parapelagiella, Pararaconus, Paucella, Pedrocheotheca, Perssuakiella, Postacanthella, Prosinuites, Protowenella, Pseudopollicina, Randomia, Securiconus, Tannuella, Totoralia, Truncatoconus, Tuoraconus, Yangtzeconinae
Subtaxa: Davidonia puppis Davidonia rostrata Davidonia taconica
Type: Mellopegma rostratum
Ecology: slow-moving low-level epifaunal detritivore
Distribution:
• Cambrian of Antarctica (4 collections), Australia (23), Canada (3: Newfoundland and Labrador, Quebec), China (4), Greenland (10), Norway (1), Sweden (2), United States (7: New York)
Total: 54 collections including 72 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.