Biology:Pinnocaris

From HandWiki
Short description: Extinct genus of molluscs 






Pinnocaris
Temporal range: Ordovician 

































Scientific classification e




Domain:

Eukaryota




Kingdom:

Animalia




Phylum:

Mollusca




Class:

†Rostroconchia




Order:

†Ribeirioida




Genus:

†Pinnocaris
Etheridge, 1878










































































































































Pinnocaris is a genus of rostroconch mollusc known from the Cambro-Ordovician.[1]  It was once considered as a possible ancestor to the scaphopods, but this no longer seems tenable.[1]  Original descriptions from material in southern Scotland had the organism as a bivalved arthropod, but its univalved disposition has since become clear.[1]



References




    

  1. ↑ 1.0 1.1 1.2 Peel, J.S. (2004). "Pinnocaris and the origin of scaphopods.". Acta Palaeontologica Polonica 49 (4):  543–550. 

    2. 



 Wikidata ☰ Q7196364 entry














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