AN EARLY PERMIAN VARANODONTINE VARANOPID (SYNAPSIDA: EUPELYCOSAURIA) FROM THE RICHARDS SPUR LOCALITY, OKLAHOMA

@inproceedings{Maddin2006ANEP,
  title={AN EARLY PERMIAN VARANODONTINE VARANOPID (SYNAPSIDA: EUPELYCOSAURIA) FROM THE RICHARDS SPUR LOCALITY, OKLAHOMA},
  author={Hillary C. Maddin and David C Evans and Robert R. Reisz},
  year={2006}
}
Abstract Description of the first varanodontine varanopid material from the highly fossiliferous limestone fissure fill deposits at Richards Spur (Dolese Brothers Limestone Quarry), Oklahoma, is based on elements of at least three individuals recovered from two separate blocks of sedimentary rock. One block, which yielded associated cranial and postcranial bones from both adult and juvenile individuals, includes two well-preserved parabasisphenoid complexes, vertebrae, forelimb, pelvic girdle… 

Varanops brevirostris (Eupelycosauria: Varanopidae) from the Lower Permian of Texas, with Discussion of Varanopid Morphology and Interrelationships

ABSTRACT A comprehensive revision of Varanops brevirostris on the basis of a large, well-preserved specimen from a new Lower Permian locality in Texas provides valuable new anatomical information and

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TLDR
A new varanopid taxon is reported, represented by substantially more complete material, which supports the placement of this taxon within Mesenosaurus, as a new species, Me. efremovi.

A new Lower Permian trematopid (Temnospondyli: Dissorophoidea) from Richards Spur, Oklahoma

TLDR
A new trematopid amphibian, Acheloma dunni, is reported based on excellently preserved cranial and postcranial elements recovered from the Lower Permian fissure fill deposits of the Dolese Brothers Co. limestone quarry near Richards Spur, Oklahoma, which may represent the top predator of the Richards Spur assemblage.

A New Lower Permian Amphibamid (Dissorophoidea, Temnospondyli) from the Fissure Fill Deposits Near Richards Spur, Oklahoma

TLDR
A phylogenetic analysis of 17 ingroup taxa and 62 cranial and postcranial characters yielded a single most-parsimonious tree with the new taxon in a monophyletic Amphibamidae as the sister taxon to the Lower Triassic Micropholis from South Africa.

Dimetrodon (Synapsida: Sphenacodontidae) from the cave system at Richards Spur, OK, USA, and a comparison of Early Permian–aged vertebrate paleoassemblages

TLDR
The morphology and histology of a small neural spine with the distinctive figure-8 shape attributable to Dimetrodon is described for the first time, suggesting not only that this animal was more widespread than previously thought, but that there are different patterns of Early Permian synapsid evolution in different ecological settings.

First arboreal 'pelycosaurs' (Synapsida: Varanopidae) from the early Permian Chemnitz Fossil Lagerstätte, SE Germany, with a review of varanopid phylogeny

TLDR
Systematic results suggest a varanodontine position for Mycterosaurus, the monophyly of South African varanopids including Anningia and the distinction of a skeletal aggregation previously assigned to Heleosaurus, now renamed as Microvaranops parentis gen. et sp.

A RE‐EVALUATION OF SPHENACODONTID SYNAPSID MATERIAL FROM THE LOWER PERMIAN FISSURE FILLS NEAR RICHARDS SPUR, OKLAHOMA

Abstract:  Early Permian terrestrial vertebrate faunal assemblages of Laurasia are dominated by large ophiacodontid, sphenacodontid, and edaphosaurid synapsids. This pattern contrasts with the fauna

A New Parareptile (Parareptilia, Lanthanosuchoidea) from the Early Permian of Oklahoma

TLDR
An exquisitely preserved skull of Feeserpeton oklahomensis, collected from the Lower Permian fissure-fill deposits near Richards Spur, Oklahoma, is the newest parareptile from the locality, and a phylogenetic analysis of Parareptilia that includes the new taxon indicates that it is a member of the poorly known Lanthanosuchoidea.

A small caseid synapsid, Arisierpeton simplex gen. et sp. nov., from the early Permian of Oklahoma, with a discussion of synapsid diversity at the classic Richards Spur locality

  • R. Reisz
  • Environmental Science, Geography
    PeerJ
  • 2019
TLDR
Fragmentary tooth bearing elements and dorsal vertebrae of another small caseid from Richards Spur are described, with a discussion of its significance in the context of caseid evolution, and the continuously expanding faunal list and taxic diversity at this locality.

Palaeoecology and taphonomy of the Early Permian cave system near Richards Spur, Oklahoma, and its parareptilian fauna

The Early Permian Richards Spur locality, located at the Dolese Brothers limestone quarry in Oklahoma, USA, is one of the most unique and important terrestrial tetrapod faunas of the Palaeozoic. As

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