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Ophiacodon mirus

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Journal Article

UPPER PENNSYLVANIAN TETRAPODS FROM THE ADA FORMATION OF SEMINOLE COUNTY, OKLAHOMA

RICHARD A. KISSEL, THOMAS M. LEHMAN
Published: 01 May 2002
Journal of Paleontology (2002) 76 (3): 529–545.
DOI: https://doi.org/10.1666/0022-3360(2002)076<0529:UPTFTA>2.0.CO;2
...RICHARD A. KISSEL; THOMAS M. LEHMAN Abstract A recently discovered tetrapod-bearing locality (OMNH V1005) in the Upper Pennsylvanian Ada Formation of Oklahoma has produced the remains of six taxa: the pelycosaurian-grade synapsid Ophiacodon cf. mirus , an indeterminate sphenacodontian pelycosaur...
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Phylogeny. (A) Strict consensus of the five most parsimonious trees. Each tree requires 97 steps, has a consistency index of 0.6907, a CI excluding uninformative characters of 0.6842, a retention index of 0.8101, and a rescaled consistency index of 0.5596. (B) 50% majority-rule consensus tree of the five most parsimonious trees. The numbers next to the nodes represent the bootstrap frequency and the decay index, respectively. Varanopidae Romer and Price 1940 (converted clade name) is defined as all taxa that are more closely related to Varanops brevirostris than to Ophiacodon mirus, Edaphosaurus cruciger, and Sphenacodon ferox.

Phylogeny. (A) Strict consensus of the five most parsimonious trees. Each t...

Published: 12 April 2004
tree of the five most parsimonious trees. The numbers next to the nodes represent the bootstrap frequency and the decay index, respectively. Varanopidae Romer and Price 1940 (converted clade name) is defined as all taxa that are more closely related to Varanops brevirostris than to Ophiacodon
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Figure7—OMNH V1005 vertebrae assigned to Ophiacodon cf. mirus. 1, OMNH 55255 (cervical vertebra 5?), left lateral view; 2, OMNH 55256 (cervical vertebra 6?), left lateral view; 3, OMNH 55258 (dorsal vertebra), left lateral view; 4, OMNH 55253 (lumbar vertebra), right lateral view; 5, OMNH 55292 (proximal caudal vertebra), left lateral view; 6, OMNH 55252 (posterior caudal vertebrae), right lateral view

Figure 7 —OMNH V1005 vertebrae assigned to Ophiacodon cf. mirus . 1, ...

Published: 01 May 2002
Figure 7 —OMNH V1005 vertebrae assigned to Ophiacodon cf. mirus . 1, OMNH 55255 (cervical vertebra 5?), left lateral view; 2, OMNH 55256 (cervical vertebra 6?), left lateral view; 3, OMNH 55258 (dorsal vertebra), left lateral view; 4, OMNH 55253 (lumbar vertebra), right lateral view; 5
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Figure8—OMNH V1005 material assigned to Ophiacodon cf. mirus. 1, OMNH 55241 (left scapulocoracoid), lateral view; 2, OMNH 55200 (left humerus; supinator process based on OMNH 55204), dorsal view; 3, OMNH 55210 (right radius), dorsal view; 4, OMNH 55216 (left ulna); dorsal view; 5, OMNH 55243 (pelvic girdle; iliac blade based on OMNH 55246), left lateral view; 6, OMNH 55235 (right femur), dorsal view; 7, OMNH 55234 (right femur), dorsal view; 8, OMNH 55234, ventral view; 9, OMNH 55220 (right tibia; distal portion based on OMNH 55224), dorsal view; 10, OMNH 55229 (right fibula), dorsal view

Figure 8 —OMNH V1005 material assigned to Ophiacodon cf. mirus . 1, O...

Published: 01 May 2002
Figure 8 —OMNH V1005 material assigned to Ophiacodon cf. mirus . 1, OMNH 55241 (left scapulocoracoid), lateral view; 2, OMNH 55200 (left humerus; supinator process based on OMNH 55204), dorsal view; 3, OMNH 55210 (right radius), dorsal view; 4, OMNH 55216 (left ulna); dorsal view; 5
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Figure9—Ventral view of Ophiacodon femora, showing the position of the adductor ridge within several species (1–4 redrawn from Romer and Price, 1940). 1,O. navajovicus; 2,O. mirus; 3,O. uniformis; 4,O. retroversus; 5 Ada Ophiacodon (OMNH 55234)

Figure 9 —Ventral view of Ophiacodon femora, showing the position of the...

Published: 01 May 2002
Figure 9 —Ventral view of Ophiacodon femora, showing the position of the adductor ridge within several species ( 1 – 4 redrawn from Romer and Price, 1940 ). 1, O. navajovicus ; 2, O. mirus ; 3, O. uniformis ; 4, O. retroversus ; 5 Ada Ophiacodon (OMNH 55234)
Journal Article

The early evolution of synapsids, and the influence of sampling on their fossil record

Neil Brocklehurst, Christian F. Kammerer, Jörg Fröbisch
Journal: Paleobiology
Published: 23 May 2013
Paleobiology (2013) 39 (3): 470–490.
DOI: https://doi.org/10.1666/12049
... in one or more studies, and if one or more different studies use a single species of that genus, then the single species used is included in all source trees. For example, most studies use Ophiacodon spp. as a terminal taxon, but one uses Ophiacodon mirus . Here, therefore, O. mirus replaces...
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Journal Article

Description of a new specimen of Ianthasaurus hardestiorum (Eupelycosauria: Edaphosauridae) and a re-evaluation of edaphosaurid phylogeny

David M. Mazierski, Robert R. Reisz
Published: 24 June 2010
Canadian Journal of Earth Sciences (2010) 47 (6): 901–912.
DOI: https://doi.org/10.1139/E10-017
... 1982 ), the ophiacodontid Ophiacodon mirus ( Williston and Case 1913 ; Romer and Price 1940 ), and the haptodontid Haptodus garnettensis ( Laurin 1993 ). Table 2. Distribution of the character states for taxa analyzed in this paper. Character...
View PDF for article title, Description of a new specimen of Ianthasaurus hardestiorum (Eupelycosauria: Edaphosauridae) and a re-evaluation of edaphosaurid phylogeny
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Journal Article

A reevaluation of the enigmatic Permian synapsid Watongia and of its stratigraphic significance

Robert R. Reisz, Michel Laurin
Published: 12 April 2004
Canadian Journal of Earth Sciences (2004) 41 (4): 377–386.
DOI: https://doi.org/10.1139/e04-016
... tree of the five most parsimonious trees. The numbers next to the nodes represent the bootstrap frequency and the decay index, respectively. Varanopidae Romer and Price 1940 (converted clade name) is defined as all taxa that are more closely related to Varanops brevirostris than to Ophiacodon...
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Journal Article

The lost Permo-Carboniferous vertebrate deposit of Horseshoe Bend near Danville, Vermilion County, Illinois

Arjan Mann, W. John Nelson, Robert W. Hook, Scott D. Elrick
Published: 01 September 2024
Journal of Paleontology (2024) 98 (5): 838–854.
DOI: https://doi.org/10.1017/jpa.2024.30
... by an ophiacodontid ( Ophiacodon cf. Ophiacodon mirus Marsh, 1878 ) and including a diadectid ( Diasparactus zenos Case, 1910 ). The youngest Carboniferous tetrapod assemblages included on Figure 9 are from El Cobre Canyon, Rio Arriba County, New Mexico and from southeastern San Juan County, Utah. Both...
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