planar deformation features
It only has tiny fractures that have been glued together
Acanthopyge granulosa
Middle Ordovician
You can see the system of sensory lines (terrace ridges) that are already described in the article (1)
30174 - Beautiful Association of 3 Brachiopodes sp Upper Cambrian Brachiopods - Utah, USA Olenoides nevadensis planar deformation featuresPhylum Brachiopoda, Cuvier 1805 (lamp shell) Eumetazoa Triploblastica PaleoDB taxon number: 26322 Parent taxon: Lophophorata according to M. P. Nesnidal et al. 2013 See also Edgecombe et al. 2011, Martin 1904, Nielsen 2012, Phleger 1933, Sepkoski 2002 and Zrzavy et al. 1998 Sister taxa: Ectoprocta, Hyolitha, Phlogites, Phoronida, Tentaculitida Subtaxa: Acanthotretella, Ancylopoda, Arthropomata, Articulata, Clitambonoidea, Craniiformea, Dallinacea,