PROBLEMS OF THE ORIGIN OF REPTILES

@article{Carroll1969PROBLEMSOT,
  title={PROBLEMS OF THE ORIGIN OF REPTILES},
  author={Robert Lynn Carroll},
  journal={Biological Reviews},
  year={1969},
  volume={44}
}
  • R. Carroll
  • Published 1 July 1969
  • Environmental Science, Geography, Biology
  • Biological Reviews
The fossil records of the four living reptilian orders can be traced into the Triassic. The earlier ancestry of the turtles has not been established. Squamates and rhyncho‐cephalians evolved from the Late Permian eosuchians; crocodiles from the thecodonts. The ancestry of the eosuchians and thecodonts is to be found in the central stock of Permo‐Carboniferous reptiles, the captorhinomorphs. The earliest captorhino‐morphs, from the Lower Pennsylvanian, are already fully developed reptiles. The… 

A captorhinomorph reptile from the lower Permian of Europe

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The origin and early evolutionary history of amniotes.

  • R. Reisz
  • Geology, Biology
    Trends in ecology & evolution
  • 1997

The Ancestry of Reptiles

The ancestry of captorhinomorph reptiles from the gephyrostegid anthracosaurs can be firmly established and the nature of the amphibian-reptilian transition must be studied on the basis of relicts of earlier groups which are contemporary with true reptiles.

EARLY EVOLUTION OF REPTILES

The fossil record of early amniotes is complete enough to establish their relationships to the major groups living today and provides an opportunity to consider the evolutionary processes associated with a period of major radiation.

Amniotes, the Origin of

Assembling the history of the Parareptilia: phylogeny, diversification, and a new definition of the clade

The results show that a significant increase in diversification rate could be recorded only among Triassic procolophonoids, making it difficult to interpret evolutionary novelties such as herbivory or impedance-matching hearing as being key innovations that might have driven diversification.

A Phylogenetic Perspective on Locomotory Strategies in Early Amniotes

This work investigates the major locomotory strategies that have been posited for Paleozoic amniotes by optimizing the major Locomotory styles identified for these taxa onto the consensus tree, in order to present an overview of the pattern of evolution of locomOTory strategies inherited and adopted by various amniote lineages.

Permo-Carboniferous Paleoecology and Morphotypic Series

The “trends” of evolutionary change from Hylonomus to Thrinaxodon can best be seen if these two and Haptodus are used as an evolutionary series, the stages that are missing interpolated, and the roles of the other genera evaluated on the basis of this more or less idealized, conceptual series.
...

References

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Gephyrostegus bohemicus Jaekel from the Upper Carboniferous of Nyran is the oldest and most primitive member of the Seymouriamorpha, and a description of the palate, previously unknown, is made possible.

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IN no domain of zoological science have the con tributions of American naturalists been more splendid than in that of vertebrate palaeontology, and in the list of pioneer workers in this domain an

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