Tentaculita

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

Tentaculita is an extinct class of lophophorates 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.

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, and preserved musculature suggests a relationship with bryozoans.