Abstract
A second specimen of the Australian cimolodontan multituberculate Corriebaatar marywaltersae from the same locality (Flat Rocks) as the holotype and previously only known specimen, reveals far more anatomical information about the species. The new specimen, composed of most of a dentary containing a complete p4 and alveoli for the lower incisor and the lower first and second molars, exhibits a suite of features consistent with allocation of Corriebaatar to Cimolodonta and further confirms the presence of multituberculates on Gondwana during the Mesozoic. The revised (older) age of the Flat Rocks locality to latest Barremian (mid-Early Cretaceous) establishes C. marywaltersae as the oldest currently known cimolodontan. This has profound biogeographic implications for the distribution of multituberculates on Gondwana as well as globally, particularly in light of the fact that Corriebaatar appears to be a relatively derived member of Cimolodonta.
| Original language | English |
|---|---|
| Pages (from-to) | 115-134 |
| Number of pages | 20 |
| Journal | Acta Palaeontologica Polonica |
| Volume | 67 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2022 |
Keywords
- Australia
- Cimolodonta
- Cretaceous
- Gondwana
- Mammalia
- Multituberculata
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In: Acta Palaeontologica Polonica, Vol. 67, No. 1, 2022, p. 115-134.
Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Second specimen of Corriebaatar marywaltersae from the Lower Cretaceous of Australia confirms its multituberculate affinities
AU - Rich, Thomas H.
AU - Krause, David W.
AU - Trusler, Peter
AU - White, Matt A.
AU - Kool, Lesley
AU - Evans, Alistair R.
AU - Morton, Steven
AU - Vickers-Rich, Patricia
N1 - Funding Information: We are delighted to be able to contribute to this festschrift volume honoring Richard L. Cifelli (Oklahoma Museum of Natural History, Norman, USA). Richard Cifelli was an author on a number of important papers cited in this study and participated in the seminal synthesis of knowledge about Mesozoic mammals generally for the benefit of all workers in the field. We thank Brian M. Davis (University of Louisville, USA) for the invitation to contribute to this issue and his skilled editing of our manuscript. We also thank Robin M.D. Beck (University of Salford, UK), Louis L. Jacobs (Southern Methodist University, Dallas, USA), and Lucas N. Weaver (University of Michigan, Ann Arbor, USA) for stimulating correspondence about the subject matter of this article and both Robin M.D. Beck and Guillermo W. Rougier (University of Louisville, USA) for their insights and helpful comments on the revised manuscript. We also thank Wendy J. White (Monash University, Clayton, Australia) for her eagle-eye editorial efforts to improve the manuscript. Making possible the discovery of this new specimen and the original Corriebaatar marywaltersae specimen were the many volunteers who have taken part in the Dinosaur Dreaming program along the south coast of Victoria over years, the funding provided by the National Geographic Society and Swinburne and Monash universities, and the grace of the Bunurong People upon whose land this material was collected. Parks Victoria Permits to PV-R supported this work over the years. DK?s effort was supported by U.S. National Science Foundation grant EAR-1664432. Funding Information: We are delighted to be able to contribute to this festschrift volume honoring Richard L. Cifelli (Oklahoma Museum of Natural History, Norman, USA). Richard Cifelli was an author on a number of important papers cited in this study and participated in the seminal synthesis of knowledge about Mesozoic mammals generally for the benefit of all workers in the field. We thank Brian M. Davis (University of Louisville, USA) for the invitation to contribute to this issue and his skilled editing of our manuscript. We also thank Robin M.D. Beck (University of Salford, UK), Louis L. Jacobs (Southern Methodist University, Dallas, USA), and Lucas N. Weaver (University of Michigan, Ann Arbor, USA) for stimulating correspondence about the subject matter of this article and both Robin M.D. Beck and Guillermo W. Rougier (University of Louisville, USA) for their insights and helpful comments on the revised manuscript. We also thank Wendy J. White (Monash University, Clayton, Australia) for her eagle-eye editorial efforts to improve the manuscript. Making possible the discovery of this new specimen and the original Corriebaatar marywaltersae specimen were the many volunteers who have taken part in the Dinosaur Dreaming program along the south coast of Victoria over years, the funding provided by the National Geographic Society and Swinburne and Monash universities, and the grace of the Bunurong People upon whose land this material was collected. Parks Victoria Permits to PV-R supported this work over the years. DK’s effort was supported by U.S. National Science Foundation grant EAR-1664432. Publisher Copyright: Copyright © 2022 T.H. Rich et al.
PY - 2022
Y1 - 2022
N2 - A second specimen of the Australian cimolodontan multituberculate Corriebaatar marywaltersae from the same locality (Flat Rocks) as the holotype and previously only known specimen, reveals far more anatomical information about the species. The new specimen, composed of most of a dentary containing a complete p4 and alveoli for the lower incisor and the lower first and second molars, exhibits a suite of features consistent with allocation of Corriebaatar to Cimolodonta and further confirms the presence of multituberculates on Gondwana during the Mesozoic. The revised (older) age of the Flat Rocks locality to latest Barremian (mid-Early Cretaceous) establishes C. marywaltersae as the oldest currently known cimolodontan. This has profound biogeographic implications for the distribution of multituberculates on Gondwana as well as globally, particularly in light of the fact that Corriebaatar appears to be a relatively derived member of Cimolodonta.
AB - A second specimen of the Australian cimolodontan multituberculate Corriebaatar marywaltersae from the same locality (Flat Rocks) as the holotype and previously only known specimen, reveals far more anatomical information about the species. The new specimen, composed of most of a dentary containing a complete p4 and alveoli for the lower incisor and the lower first and second molars, exhibits a suite of features consistent with allocation of Corriebaatar to Cimolodonta and further confirms the presence of multituberculates on Gondwana during the Mesozoic. The revised (older) age of the Flat Rocks locality to latest Barremian (mid-Early Cretaceous) establishes C. marywaltersae as the oldest currently known cimolodontan. This has profound biogeographic implications for the distribution of multituberculates on Gondwana as well as globally, particularly in light of the fact that Corriebaatar appears to be a relatively derived member of Cimolodonta.
KW - Australia
KW - Cimolodonta
KW - Cretaceous
KW - Gondwana
KW - Mammalia
KW - Multituberculata
UR - http://www.scopus.com/inward/record.url?scp=85129028272&partnerID=8YFLogxK
U2 - 10.4202/app.00924.2021
DO - 10.4202/app.00924.2021
M3 - Article
AN - SCOPUS:85129028272
SN - 0567-7920
VL - 67
SP - 115
EP - 134
JO - Acta Palaeontologica Polonica
JF - Acta Palaeontologica Polonica
IS - 1
ER -