Craniata (brachiopod)

Craniata is a class of brachiopods originating in the Cambrian period and still extant today.[1] They have calcitic inarticulated shells that are subcircular in outline. This class of brachiopods has an unsupported lophophore and is always attached to a hard substrate in the fossil record. This hard substrate is usually another brachiopod. The plicae from the host brachiopod will then appear within the shell of the craniata.[2]

This article is about a class of brachiopods. For a proposed clade of chordates, see Craniate.

Craniata
Temporal range: Ordovician– Recent
Ordovician strophomenid brachiopod with encrusting craniid brachiopods (Philhedra, the round attached shells).
Scientific classification
Kingdom: Animalia
Clade: Lophophorata
Phylum: Brachiopoda
Subphylum: Craniiformea
Popov, Basset, Holmer & Laurie, 1993
Class: Craniata
Williams, Carlson, Brunton, Holmer & Popov, 1996 (non Linnaeus 1758: preoccupied)
Orders and Families
Synonyms

(Class)

  • Craniforma

Craniata is the only class within the subphylum Craniiformea. The class Craniata is divided into three orders, one of which is still extant (Craniida).

References
  1. "WoRMS - World Register of Marine Species - Craniiformea". www.marinespecies.org. Retrieved 2019-02-18.
  2. Treatise on Invertebrate Paleontology, Part H: Brachiopoda, revised (PDF). 6. 2007. ISBN 978-0-8137-3136-0.


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