Skip to content Skip to navigation

Article: Two new subspecies of Phacops rana [Trilobita] from the Middle Devonian of North-West Africa

Publication: Palaeontology
Volume: 17
Part: 2
Publication Date: September 1974
Page(s): 349 363
Author(s): Christopher J. Burton and Niles Eldredge
DOI:
Addition Information

How to Cite

BURTON, C. J., ELDREDGE, N. 1974. Two new subspecies of Phacops rana [Trilobita] from the Middle Devonian of North-West Africa. Palaeontology17, 2, 349–363.

Online Version Hosted By

The Palaeontological Association (Free Access)

Abstract

Phacops rana africanus subsp. nov. and P. rana tindoufensis subsp. nov. are described from the Middle Devonian of North-West Africa. They are considered to be close to P. rana milleri Stewart and P.rana crassituberculata Stumm of North America. An origin for P. rana in the European and North African P. schloteimi (s.l.) group is postulated. Migration of forms between the two areas is necessary to explain the distribution pattern of P. rana, and routes between North-West Africa and North America are examined with reference to the contemporary positions of the continents.
PalAss Go! URL: http://go.palass.org/3we | Twitter: Share on Twitter | Facebook: Share on Facebook | Google+: Share on Google+