Concavicaris Rolfe, 1961

Laville, Thomas, Haug, Joachim T. & Haug, Carolin, 2021, New species of Thylacocephala, Eodollocaris keithflinti n. gen., n. sp., from the Mazon Creek Lagerstätte, Illinois, United States (c. 307 Ma) and redescription of other Mazon Creek thylacocephalans, Geodiversitas 43 (10), pp. 295-310 : 298

publication ID	https://doi.org/ 10.5252/geodiversitas2021v43a10
publication LSID	urn:lsid:zoobank.org:pub:F9F1091A-DDD1-40C4-81B6-F254151D7D47
DOI	https://doi.org/10.5281/zenodo.4746746
persistent identifier	https://treatment.plazi.org/id/03DC0462-FFA9-D52C-FC7F-FBBDFB7E6C76
treatment provided by	Felipe
scientific name	Concavicaris Rolfe, 1961
status

Treatment

Genus Concavicaris Rolfe, 1961

Colpocaris Meek, 1872: 33 (junior homonym of Colpocaris von Meyer, 1862).

TYPE SPECIES. — Ceratiocaris (Colpocaris) bradleyi Meek, 1872 , from the Waverly formation (Mississipian) of Kentucky, United States.

DIAGNOSIS (repeated from Rolfe 1961). — Carapace with a fused hinge line, a rostrum extended anteriorly, a pronounced optic notch, and up to three lateral longitudinal ridges.