Tentaculita

Tentaculita is an extinct class of uncertain placement ranging from the Early Ordovician to the Middle Jurassic. They were suspension feeders with a near worldwide distribution. For a more thorough discussion, see Tentaculites.

Tentaculita
Temporal range: Early Ordovician to Middle Jurassic (Vinn 2010)
Tentaculitids from the Devonian of Maryland.
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Superphylum: Lophotrochozoa (?)
Class: Tentaculita
Boucek, 1964
Taxa of uncertain placement

The presence of perforate septa and "septal necks" has been used to argue for a cephalopod affinity, whereas the shell microstructure, notably the presence of punctae, points to a brachiopod relationship.

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