Abstract
The reign of the pelycosaurs was over before the middle of the Permian, with only a few rather obscure members of the group surviving into late Permian times (Table 1.2). In the Middle Permian they were replaced as the dominant land animals by the members of the Order Therapsida. The latter are classified as an order of reptiles within the sub-class Synapsida, but equate much more closely with a sub-class of the Mammalia, say the Eutheria or placental mammals, than with any individual order of mammals.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Boonstra, L. D. (1934a) ‘Additions to our Knowledge of the South African Gorgonopsia,preserved in the British Museum (Natural History)’, Ann. S. Afri. Museum, 31, 177–213
Boonstra, L. D. (1934b)‘A Contribution to the Morphology of the Mammal-like Reptiles of the Suborder Therocephalia’, Ann. S. Afri. Museum, 31, 215–267
Brink, A. S. (1955) ‘A study on the Skeleton of Diademodon’, Palaeontologica Africana, 3, 3–39
Brink, A. S. (1963a) ‘On Bauria cynops Broom’, Palaeontologica Africana, 8, 39–56
Brink, A. S. (1963b) ‘Notes on Some New Diademodon Specimens in the Collection of the Bernard Price Institute’, Palaeontologica Africana, 8, 97–118
Broom, R. (1932) The Mammal-like Reptiles of South Africa and the Origin of Mammals, H. F. and G. Witherby, London
Broom, R. (1938) ‘The Origin of the Cynodonts’, Ann. Transe. Mus., 19, 279–288
Colbert, E. H. (1948) ‘The Mammal-like Reptile Lycaenops’, Bull. Amer. Mus. Nat. Hist., 89, 355–404
Crompton, A. W. (1963) ‘On the Lower Jaw of Diarthrognathus and the Origin of the Mammalian Lower Jaw’, Proc. Zool. Soc. Lond., 140, 697–753
Jenkins, F. A. (1971) ‘The Postcranial Skeleton of African Cynodonts’, Bull. Peabody Mus. Nat. Hist., 36, 1–216
Kemp, T. S. (1982) Mammal-like Reptiles and the Origin of Mammals, Academic Press, London
Parrington, F. R. (1939) ‘On the Digital Formulae of Theriodont Reptiles’, Ann. Mag. Nat. Hist., ser.l 1, 3, 209–214
Parrington, F. R. (1955) ‘On the Cranial Anatomy of Some Gorgonopsids and the Synapsid Middle Ear’, Proc. Zool. Soc. Lond., 125, 1–40
Romer, A. S. (1956) Osteology of the Reptiles, The University of Chicago
Press, Chicago Romer, A. S. (1969) ‘The Chanares (Argentina) Triassic Reptile Fauna V. A New Chiniquodon-tid Cynodont, Probelesodon lewisi — Cynodont Ancestry’, Brevoria, 333, 1–24
Sigogneau, D. (1970) ‘Révision Systématique des Gorgonopsiens Sud-Africains’, Editions du Centre National de la Recherche Scientifique, Paris
Watson, D. M. S. (1913) ‘Further Notes on the Skull, Brain, and Organs of Special Sense of Diademodon’, Ann. Mag. Nat. Hist., ser. 8, 12, 217–228
Watson, D. M. S. (1921) ‘The Bases of Classification of the Theriodontia’, Proc. Zool. Soc. Lond., pp. 35–98
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 1984 Doris M. Kermack and Kenneth A. Kermack
About this chapter
Cite this chapter
Kermack, D.M., Kermack, K.A. (1984). The Therapsids. In: The Evolution of Mammalian Characters. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-7817-4_2
Download citation
DOI: https://doi.org/10.1007/978-1-4684-7817-4_2
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4684-7819-8
Online ISBN: 978-1-4684-7817-4
eBook Packages: Springer Book Archive