perekond
Calycraterion Karaszewski, 1971
Current taxon already exists. See initial taxon Laevicyclus
Taxon ID: 15998
Fossiilirühm: Ichnofossils
Kuulub: Bioturbation trace fossils
Other version of taxon: Laevicyclus
Baltoskandiast leitud liigid (andmebaasis):
Taksoni kirjeldused
Pickerill et al., 1984a
Calycraterion Karaszewski, 1971 is a smooth calyx-shaped depression or mound preserved on either upper or lower bedding plane surfaces that possesses up to three smaller depressions or knobs representing burrow outlets of the producing ?annelid (Karaszewski, 1971).
Klassifikatsioon