Królestwo ANIMALIA » Typ ECHINODERMATA » Podtyp PELMATOZOA » Gromada EDRIOASTEROIDEA » Rząd Cyclocystoidida » Rodzina Apycnodiscidae »
Rodzaj Platycycloides Boczarowski, 2001
Gatunek typowy Opis Smooth, cylindrical crest concave axially. Two large, flattened lobe-shaped radial processes well developed, either connected proximally to form a large oval foramen, or disconnected and defining a C-shaped slit. Synonimy Zasięg czasowy mid Frasnian (Late Devonian) Literatura Boczarowski, A. 2001. Isolated sclerites of Devonian non-pelmatozoan echinoderms. Palaeontologia Polonica 59, 3−220. |
|