Systematics and evolution of the brachiopod genusRhizothyrisin the Oligocene—Miocene of New Zealand
- 1 June 1973
- journal article
- research article
- Published by Taylor & Francis in Journal of the Royal Society of New Zealand
- Vol. 3 (2) , 141-160
- https://doi.org/10.1080/03036758.1973.10430597
Abstract
The terebratellid genus Rhizothyris Thomson, 1915, has been restudied. The genus spans the period represented by Landon, Pareora, and Southland Series (OligoceneMiocene). Individual populations show a wide range of variation in trivial characters, making it difficult to delimit species. Of the 18 previously described species, 13 are placed in synonymy because they lack statistically significant differences from other species. One new species R. kokoamuensis is described, and five previously named species are reaffirmed. The stratigraphic history of the genus is presented and an interpretation of its evolution is attempted.Keywords
This publication has 1 reference indexed in Scilit:
- Revision of Hutchinsonian, Awamoan and Altonian Stages (Lower Miocene, New Zealand) — 2New Zealand Journal of Geology and Geophysics, 1972