The Earliest Known Necturus (Amphibia, Urodela), from the Paleocene Ravenscrag Formation of Saskatchewan

@article{Naylor1978TheEK,
  title={The Earliest Known Necturus (Amphibia, Urodela), from the Paleocene Ravenscrag Formation of Saskatchewan},
  author={Bruce G. Naylor},
  journal={Journal of Herpetology},
  year={1978},
  volume={12},
  pages={565}
}
  • B. G. Naylor
  • Published 30 October 1978
  • Biology
  • Journal of Herpetology
Trunk vertebrae of a new species of Necturus from the Paleocene of southern Saskatchewan are described. These represent the oldest definite record of the Proteidae. Available evidence indicates that proteids and the extinct batrachosauroidids are closely related, and that Proteus and Necturus are of monophyletic origin. * * * 
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References

SHOWING 1-10 OF 14 REFERENCES
A Primitive Therian Mammal from the Upper Cretaceous of Alberta
The discovery of tribosphenic molars of primitive construction in the Upper Milk River Formation (early Campanian), Alberta, documents the occurrence of a relict middle Late Cretaceous mammalian
Parallelism in the Proteidae Reconsidered
TLDR
After reexamination of morphological, paleontological, zoogeographic and behavioral data, it is concluded that the preponderance of available evidence supports the early workers, such as Noble (1931), who assigned these two genera to the same family, the Proteidae.
Cytological Evidence Against Parallel Evolution of Necturus and Proteus
TLDR
The cytological data do not support the argument for parallel evolution of these two genera, but they indicate the evolution of Necturus and Proteus from a common ancestor having a haploid number of 19 chromosomes.
CORRELATION OF THE CRETACEOUS-TERTIARY TRANSITION IN SASKATCHEWAN AND ALBERTA
The author9s earlier conclusions on Cretaceous-Tertiary correlations on the Canadian great plains are reviewed in the light of recent studies by various workers. The stratigraphical sequence in the
The Determination of Parallel or Monophyletic Relationships: The Proteid Salamanders-A Test Case
TLDR
It is concluded that Proteus and Necturus are probably not derived from a common ancestor which was a perennibranchiate salamander and there is no morphological, paleontological, or biogeographical evidence to favor either of these hypotheses over the other.
...
1
2
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