Ancistrocrania is an extinct genus of brachiopods from the Upper Cretaceous of Europe and North-America. The name is derived from the Greek words αγκιστρο (agkistro) "fish hook" and κρανίον (kranion) skull.
References
Fossils (Smithsonian Handbooks) by David Ward (Page 92)
External links Ancistrocrania in the Paleobiology Database