Coolinia

Coolinia; Temporal range: Ordovician–Silurian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Brachiopoda
Class:	†Strophomenata
Order:	†Orthotetida
Family:	†Chilidiopsidae
Genus:	†Coolinia; Bancroft, 1949
Type species
	Orthis applanata; Salter, 1846
Other species
	Coolinia convexa Savage, 1913; Coolinia dalmani Bergström, 1968; Coolinia gamachiana Twenhofel, 1928; Coolinia gracilis Andreeva, 1961; Coolinia pecten Linnaeus, 1758; Coolinia sulcata Boucot et al., 1988;

Coolinia is an extinct genus of orthotetide brachiopod that lived during the Ordovician and Silurian periods.

Description

Coolinia lacked a pedicle sheath during its larval stage. Its larval shell did possess a primitive colleplax structure, however.

↑ "Fardenia (Coolinia)". Paleobiology Database. Retrieved 18 October 2026.
↑ Bassett, Michael G.; Popov, Leonid E. (October 2017). "Earliest ontogeny of the Silurian orthotetide brachiopod Coolinia and its significance for interpreting strophomenate phylogeny". Lethaia. 50 (4): 504–510. doi:10.1111/let.12204. ISSN 0024-1164. Retrieved 18 October 2026 – via Scandinavia University Press.