A New Amphibamid (Temnospondyli: Dissorophoidea) from the Early Permian of Texas

@inproceedings{Bourget2011ANA,
  title={A New Amphibamid (Temnospondyli: Dissorophoidea) from the Early Permian of Texas},
  author={H{\'e}l{\`e}ne Bourget and Jason S. Anderson},
  year={2011}
}
ABSTRACT The Amphibamidae are undergoing intensive investigation at present, with many new species recently described to better understand their interrelationships and role in the origin of extant amphibians. A new genus and species of amphibamid, Rubeostratilia texensis, represented by a skull from the Early Permian of Texas, shows many similarities with a recent described species from Richards Spur, Oklahoma, Pasawioops mayi. The skull is elongate and oval, with enlarged external naris and… 
New Information on Amphibamids (Tetrapoda, Temnospondyli) from Richards Spur (Fort Sill), Oklahoma
ABSTRACT A nearly complete amphibamid skull from the Richards Spur locality in Oklahoma is demonstrated to be a new species of Tersomius. This new species has a mosaic of features seen in other
The amphibamiform Nanobamus macrorhinus from the early Permian of Texas
TLDR
A complete, updated osteological description of N. macrorhinus is presented, including an improved characterization of its unique mosaic of plesiomorphic and apomorphic features and clarification of the taxon's autapomorphies, which reflect the complexity of terrestrial amphibamiform diversity and provide further insight into the evolutionary history of the lissamphibian stem in terrestrial environments.
Late Ontogeny in the Small Early Permian Amphibamiform Dissorophoid Pasawioops mayi
TLDR
Several aspects of the ontogeny of Pasawioops are found to be present in lissamphibians and Amphibamiformes (i.e., branchiosaurids and amphibamids), revealing that some ontogen-dependent traits are highly conserved within this group, whereas others are more broadly conserved across other tetrapod lineages.
The putative lissamphibian stem-group: phylogeny and evolution of the dissorophoid temnospondyls
  • R. Schoch
  • Biology, Environmental Science
    Journal of Paleontology
  • 2018
TLDR
An inclusive phylogenetic analysis of dissorophoids gives new insights into the large-scale topology of relationships, including a basal dichotomy between the large, heavily ossified Olsoniformes and the small salamander-like Amphibamiformes.
First Record of the Amphibamiform Micropholis stowi from the Lower Fremouw Formation (Lower Triassic) of Antarctica
  • B. Gee, C. Sidor
  • Environmental Science, Geography
    Journal of Vertebrate Paleontology
  • 2021
ABSTRACT The fossil record of temnospondyl amphibians in the immediate wake of the Permo-Triassic mass extinction captures extensive taxic and ecological diversity, with most records known from high
Character distribution and phylogeny of the dissorophid temnospondyls
TLDR
The significance of osteoderms in dissorophid phylogeny is found to be much smaller than hitherto considered.
Upside down: ‘Cryobatrachus’ and the lydekkerinid record from Antarctica
Abstract Temnospondyl amphibians are common in non-marine Triassic assemblages, including in the Fremouw Formation (Lower to Middle Triassic) of Antarctica. Temnospondyls were among the first
The origin(s) of extant amphibians: a review with emphasis on the “lepospondyl hypothesis”
TLDR
It is proposed that the complex of characters called the salamander mode of autopodium development is (in its less extreme forms) plesiomorphic for limbed vertebrates, so the apparent presence of this mode of development in temnospondyls cannot support the TH or the PH.
New specimen of Cacops woehri indicates differences in the ontogenetic trajectories among cacopine dissorophids
TLDR
A large specimen of the dissorophid Cacops woehri is described, which was previously only known from the juvenile or subadult holotype skull, and shows that, in contrast to C. morrisi and C. aspidephorus, C. woeHri only undergoes relatively subtle changes in skull morphology in late ontogeny and retains the overall more gracile morphology into adult stages.
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