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Pelycosaurs

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Journal Article
Published: 01 March 2003
Journal of Paleontology (2003) 77 (2): 389–392.
...GRACIELA PIÑEIRO; MARIANO VERDE; MARTÍN UBILLA; JORGE FERIGOLO 19 04 2002 The Paleontological Society 2003 In their monograph Review of the Pelycosauria, Romer and Price (1940) , proposed that the earliest synapsids (“pelycosaurs”) were cosmopolitan, despite...
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Journal Article
Published: 01 May 1975
Journal of Paleontology (1975) 49 (3): 522–527.
Journal Article
Published: 01 September 1973
Journal of Paleontology (1973) 47 (5): 886–891.
Image
Figure  5. Midshaft cross-sections of the femur and tibia from “<b>pelycosaurs</b>...
Published: 01 January 2001
Figure 5. Midshaft cross-sections of the femur and tibia from “pelycosaurs” (sections A and D) and nonmammalian therapsids (sections B, C, and E), illustrating differences in shape. A, B, and C, Femoral cross-sections. D and E, Tibial cross-sections. All scale bars, 2 mm
Series: GSA Special Papers
Published: 01 January 1940
DOI: 10.1130/SPE28-p1
... stage in the beginning of mammal-like forms. They are also the dominant types in the oldest adequately known reptilian fauna and possess many archaic features which illustrate the structure of the primitive reptilian stock. Most of the earlier work on pelycosaurs was done by Cope. He realized...
Journal Article
Journal: PALAIOS
Published: 01 October 2011
PALAIOS (2011) 26 (10): 639–657.
... of xenacanth (Dicentrodus, Orthacanthus, Triodus, Xenacanthus) and euselachian (Sphenacanthus) sharks dominate the assemblage. Less common are the teeth, scales, and centra of holocephalan (Helodus) and actinopterygian fishes, together with rare tetrapod (mainly pelycosaur) phalanges and centra. The assemblage...
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Journal Article
Published: 01 July 1989
Canadian Journal of Earth Sciences (1989) 26 (7): 1343–1349.
...Stuart S. Sumida Abstract UCLA VP 1651, a new specimen from the Lower Permian Admiral Formation of Archer County, Texas, provides information on heretofore unknown portions of the postcranial skeleton of the large pelycosaur Lupeosaurus . Presacral neural spines are elongate and have a subcircular...
Journal Article
Published: 01 March 1989
Canadian Journal of Earth Sciences (1989) 26 (3): 591–605.
... as the track of a cotylosaur. It occurs together with the track of Gilmoreichnus kablikae , which is either a captorhinomorph or possibly a juvenile pelycosaur. These facilitate the assignment of a late Early Permian (late Autunian) age to the strata. The third set of footprints, those of a small herbivorous...
Journal Article
Journal: Paleobiology
Published: 01 October 1986
Paleobiology (1986) 12 (4): 450–458.
Journal Article
Published: 01 January 1970
Journal of Paleontology (1970) 44 (1): 154–163.
Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP450.10
EISBN: 9781786203311
..., these are the descent of anamniote reptiliomorphs ( Lucas 2005 , 2006 ; Kissel 2010 ; Clack & Milner 2015 ), the transition from ‘pelycosaur’- to non-mammalian therapsid-dominated synapsids ( Kemp 2006 , 2012 ), and the diversification and increasing body size of parareptiles ( Tsuji & Müller 2009...
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Journal Article
Published: 14 October 2015
Geological Magazine (2016) 153 (4): 578–600.
.... and Dimetropus leisnerianus . These ichnotaxa suggest the presence of temnospondyls, seymouriamorphs, diadectomorphs, araeoscelids, captorhinids and synapsid pelycosaurs as potential trackmakers. These faunas correlate to the late early Permian. Two ichnoassociations correspond to two different...
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Journal Article
Published: 18 April 2013
Canadian Journal of Earth Sciences (2013) 50 (3): 213–234.
...Craig S. Scott; James D. Gardner Abstract Beginning in 1962 and extending to the present, Richard C. Fox and colleagues have named 87 species of fossil vertebrates (1 fish, 4 amphibians, 2 choristoderes, 12 lizards, 1 crocodile, 1 dinosaur, 2 “pelycosaurs”, 2 non-mammalian therapsids, and 62...
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Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2006
DOI: 10.1144/GSL.SP.2006.265.01.08
EISBN: 9781862395138
..., an Early Permian pelycosaur assemblage and a Middle to Late Permian therapsid assemblage. Therefore, footprints provide a global Permian biochronology of only two time intervals, much less than the ten time intervals that can be distinguished with tetrapod body fossils. The global record of Permian...
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Journal Article
Published: 01 September 2003
Journal of Paleontology (2003) 77 (5): 977–984.
...CHRISTIAN A. SIDOR Abstract The anatomy of the external naris and anterior palate is described in detail for Lycaenodon longiceps , a morphologically conservative member of the primitive therapsid clade Biarmosuchia. Therapsids are distinguished from pelycosaur-grade synapsids by numerous features...
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Journal Article
Published: 01 May 2002
Journal of Paleontology (2002) 76 (3): 529–545.
...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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Journal Article
Journal: Paleobiology
Published: 01 January 2001
Paleobiology (2001) 27 (1): 14–38.
...Figure 5. Midshaft cross-sections of the femur and tibia from “pelycosaurs” (sections A and D) and nonmammalian therapsids (sections B, C, and E), illustrating differences in shape. A, B, and C, Femoral cross-sections. D and E, Tibial cross-sections. All scale bars, 2 mm ...
FIGURES | View All (8)
Journal Article
Published: 01 July 1992
Canadian Journal of Earth Sciences (1992) 29 (7): 1605–1608.
...Robert R. Reisz; David W. Dilkes Abstract Anningia megalops Broom, 1927 is based upon a poorly preserved, incomplete skull and was interpreted originally as an intermediate form between therapsids and primitive nontherapsid synapsids (pelycosaurs). Restudy of the type specimen indicates...
Journal Article
Journal: Geology
Published: 01 July 1991
Geology (1991) 19 (7): 726–729.
... Sandstone of Brazil, and the Cave Sandstone of southern Africa. Three eolian sandstone formations from the Permian of Scotland have tracks believed to have been made by pelycosaurs, anomodonts, and pareiasaurs. A study of these formtions has helped in interpreting how such tracks in eolian sandstones were...
Journal Article
Published: 01 June 1990
Canadian Journal of Earth Sciences (1990) 27 (6): 834–844.
... and sphenacodonts form a clade more derived than other pelycosaur groups. New information provided by this specimen indicates that edaphosaurs can be recognized only by the morphology of their distinctive presacral neural spines. Small, problematical edaphosaur species assigned to the genus Edaphosaurus may...