A new species of the traversodontid cynodont exaeretodon from the santa maria formation (middle/late triassic) of Southern Brazil

Journal of Vertebrate Paleontology

Volumn 22, Issue 2, 2002, Pages 313-325

  Abdala, Fernando ^a   Barberena, Mario Costa ^b   Dornelles, José ^c  

^a PONTIFICAL CATHOLIC UNIVERSITY OF RIO GRANDE DO SUL   (Brazil)

^b FEDERAL UNIVERSITY OF RIO GRANDE DO SUL   (Brazil)

^c FEDERAL UNIVERSITY OF PELOTAS   (Brazil)

Author keywords

[No Author keywords available]

Indexed keywords

DENTITION; MORPHOLOGY; NEW SPECIES; ONTOGENY; SKULL; TRIASSIC;

BRAZIL;

MAMMALIA; VERTEBRATA;

EID: 0035982869     PISSN: 02724634     EISSN: 19372809     Source Type: Journal    
DOI: 10.1671/0272-4634(2002)022[0313:ANSOTT]2.0.CO;2     Document Type: Article

References (63)

1. Abdala, E 1996a. Los Chiniquodontoideos (Synapsida, Cynodontia) su-damericanos. Tesis Doctoral, Facultad de Ciencias Naturales, Universidad Nacional de Tucumán, Argentina, xi + 38I pp.
2. Abdala, E 1996b. Redescripción del cráneo y reconsideración de la validez de Cynognathus minor (Eucynodontia-Cynognathidae) del Triásico Inferior de Mendoza. Ameghiniana 33:1 15-126.
3. Abdala, E 1998.An approach to the phytogeny of gomphodont cynodonts based on dental characters. Gondwana 10: Event Stratigraphy of Gondwana (abstracts), Cape Town. Journal of African Earth Sciences 27:1-2.
4. Abdala, E, and N. R Giannini. 2000. Gomphodont cynodonts of the Chañares Formation: The analysis of an ontogenetic sequence. Journal of Vertebrate Paleontology 20:501-506.
5. Abdala, E, and A. M. Ribeiro. 2000. A new therioherpetid cynodont from the Santa Maria Formation (middle Late Triassic), southern Brazil. Geodiversitas 22:589-596.
6. Abdala, E and C. L. Schultz. 1999. The fauna of Santa Cruz do Sul, Santa Maria Formation (Middle Upper Triassic) in southern Brazil. Abstracts VII International Symposium on Mesozoic Terrestrial Ecosystems, Buenos Aires.
7. Allin, E. F. 1975. Evolution of the mammalian middle ear. Journal of Morphology 147:403-438.
8. Allin, E. F. 1986. The auditory apparatus of advanced mammal-like reptiles and early mammals; pp. 283-294 in N. Hotton III, P. D. MacLean, J. J. Roth, and E. C. Roth (eds.). The Ecology and Biology of Mammal-like Reptiles. Smithsonian Institution Press, Wa.shington D.C.
9. Allin, E. F., and J. A. Hopson. 1992. Evolution of the auditory system in Synapsida (“Mammal-like Reptiles” and primitive Mammals) as seen in the fossil record; pp. 587-614 in D. B. Wester, R. R. Fay, and A. N. Popper (eds.). The Evolutionary Biology of Hearing. Springer Verlag, New York.
10. Azevedo, S. K., C. L. Schultz, and M. C. Barberena. 1990. Novas evidencias bioestratigráficas e paleoecológicas na análise da evolu^ào explosiva dos rincossauros do Triàssico. Paula-Coutiana 4:23-33.
11. Barberena, M, C. 1974. Contribuigäo ao conhecimento dos cinodontes gonfodontes (Cynodontia-Tritylodontoidea) do Brasil. Ministério de Educagao e Cultura, Universidade Federal do Rio Grande do Sul. Tese Livre Docente, 194 pp.
12. Barberena, M. C. 1982. Urna nova espécie de Proterochampsa (P. nodosa, sp. nov.) do Triàssico do Brasil. Anais da Academia brasileira de Ciencias, Rio de Janeiro 54:127-141.
13. Barberena, M, C. D. C. Araujo, E. L. Lavina, and S. K. Azevedo. 1985. O estado atual do conhecimento sobre os tetrápodos permianos e triássicos do Brasil meridional. Coletanea de Trabalhos paleontológicos. MME-DNPM, Serie Geología, No. 27, Paleontología/Estratigrafía, Brasilia, D.F. 2:21-28.
14. Barghusen, H. R. 1986. On the evolutionary origin of the therian tensor veli palatini and tensor tympani muscles; pp. 253-262 in N. Hotton III, P. D. MacLean, J. J. Roth and E. C. Roth (eds.), The Ecology and Biology of Mammal-like Reptiles. Smithsonian Institution Press, Washington, D.C.
15. Bonaparte, J. F. 1962. Descripción del cráneo y mandíbula de Exaeretodon frenguellii, Cabrera y su comparación con Diademodontidae, Tritylodontidae y los cinodontes sudamericanos. Publicaciones del Museo Municipal de Ciencias Naturales y Tradicionales de Mar del Plata 1:135-202.
16. Bonaparte, J. F. 1963a. Descripción del esqueleto postcraneano de Exaeretodon (Cynodontia-Traversodontidae). Acta Geológica Lilloana 4:5-53.
17. Bonaparte, J. F. 1963b. La familia Traversodontidae (Terapsida-Cynodontia). Acta Geológica Lilloana 4:163-194.
18. Bonaparte, J. F. 1966a. Sobre las cavidades cerebral, nasal y otras estructuras del cráneo de Exaeretodon sp. (Cynodontia-Traversodontidae). Acta Geológica Lilloana 8:5-31.
19. Bonaparte, J. F. 1966b. Una nueva “fauna” triásica de Argentina (Therapsida: Cynodontia Dicynodontia). Consideraciones filogenéticas y paleobiogeográficas. Ameghiniana 4:243-296.
20. Bonaparte, J. F. 1982. Faunal replacement in the Triassic of South America. Journal of Vertebrate Paleontology 2:362-371.
21. Brink, A. S. 1955. A study on the skeleton of Diademodon. Palaeontologia Africana 3:3-39.
22. Broili, F, and J. Schröder. 1935. Über den Schädel von Cynidiognathus Haughton. Sitzungsberichte der Bayerischen Akademie der Wissenschaften, mathematisch-naturwissenchaftliche Abteilung 1935: 199-222
23. Cabrera, A. 1943. El primer hallazgo de terápsidos en la Argentina. Notas del Museo de La Piata 8:317-331.
24. Chatterjee, S. 1982. A new cynodont reptile from the Triassic of India. Journal of Paleontology 56:203-214.
25. Crompton, A. W. 1955. On some Triassic cynodonts from Tanganyika. Proceedings of the Zoological Society of London 125:617-669.
26. Crompton, A. W. 1972. Postcanine occlusion in cynodonts and tritylodontids. Bulletin of the British Museum of Natural History, Geology, London 21:27-71.
27. Crompton, A. W., and Z. Luo. 1993. Relationships of the Liassic mammals, Sinoconodon, Morganucodon oehleri and Dinnetheriunf, pp. 30-44 in F. S. Szalay, M. J. Novacek and M. C. McKenna (eds.), Mammal Phylogeny. Mesozoic Differentiation, Multituberculates, Monotremes. Early Therians, and Marsupials. Springer-Verlag.
28. Flynn, J. J., J. M. Parrish, B. Rakotosamimanana, W. F. Simpson, R. L. Whateley, and A. R. Wyss. 1999. A Triassic fauna from Madagas “car, including early dinosaurs. Science 286:763-765.
29. L. Ranivoharimanana, W. F Simpson, and A. R. Wyss. 2000. New traversodontids (Synapsida: Eucynodontia) from the Triassic of Madagascar. Journal of Vertebrate Paleontology 20:422-427.
30. Fourie, S. 1974. The cranial morphology of Thrinaxodon liorhinus Seeley. Annals of the South African Museum 65:337-400.
31. Godefroit, P., and B. Battail. 1997. Late Triassic cynodonts from Saint-Nicolas-de-Port (north-eastern France). Geodiversitas 19:567-631.
32. Goñi, R. 1986. Reemplazo de dientes postcaninos en Andescynodon mendozensis Bonaparte (Cynodontia-Traversodontidae). Actas IV Congreso Argentino de Paleontología y Bioestratigrafía, Mendoza 2:7-14.
33. Goñi, R., and F. Goin. 1990. Morfología dentaria y biomecánica masticatoria de los cinodontes (Reptilia, Therapsida) del Triásico argentino: II. Exaeretodon frenguellii Cabrera (Traversodontidae). Ameghiniana 27:327-336.
34. Gow, C. E. 1986. A new skull of Megazostrodon (Mammalia, Triconodonta) from the Elliot Formation (Lower Jurassic) of southern Africa. Palaeontologia Africana 26:13-23.
35. Gow, C. E., and P. J. Hancox. 1993. First complete skull of the Late Triassic Scalenodontoides (Reptilia Cynodontia) from Southern Africa; pp. 161-168 in S. G. Lucas and M. Morales (eds.). The Nonmarine Triassic. New Mexico Museum of Natural History and Science Bulletin No. 3.
36. Hahn, G., J.-C. Lepage, and G. Wouters. 1988. Traversodontiden-Zähne (Cynodontia) aus der Ober-Trias von Gaume (Süd-Belgien). Bulletin de l’Institut royal des Sciences naturelles de Belgique, Sciences de la Terre 58:171-186.
37. Hopson, J. A. 1984. Late Triassic traversodont cynodonts from Nova Scotia and southern Africa. Palaeontologia africana 25:181-201.
38. Hopson, J. A. 1985. Morphology and relationships of Gomphodontosuchus brasiliensis von Huene (Synapsida, Cynodontia, Tritylodontoidea) from the Triassic of Brasil. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte 1985:285-299.
39. Hopson, J. A. 1991. Systematics of the nonmammalian Synapsida and implications for patterns of evolution in synapsids; pp. 635-693 in H.-P. Schultze and L. Trueb (eds.). Origin of the Higher Groups of Tetrapods, Controversy and Consensus. Comstock Publishing Associates, Cornell University Press, Massachusetts.
40. Hopson, J. A. 1994. Synapsid evolution and the radiation of non-eutherian mammals; pp. 190-219 in R. S. Spencer (ed.). Major Features of Vertebrate Evolution. The University of Tennessee, Knoxville Publication.
41. Hopson, J. A., and H. R. Barghusen. 1986. An analysis of therapsid relationships; pp. 83-106 in N. Hotton III, P. D. MacLean, J. J. Roth, and E.C. Roth (eds.). The Ecology and Biology of Mammal-like Reptiles. Smithsonian Institution Press, Washington, D.C.
42. Huene, F. von. 1935-42. Die fossilen Reptilien des südamerikanischen Gondwanalandes. C. H. Beck, München, 332 pp.
43. Kemp, T. S. 1982. Mammal-like Reptiles and the Origins of Mammals. Academic Press, London and New York, 363 pp.
44. Kermack, K. A., F. Mussett, and H. W. Rigney. 1981. The skull of Morganucodon. Zoological Journal of the Linnean Society 71:1158.
45. Kühne, W. G. 1956. The Liassic therapsid Oligokyphus. British Museum (Natural History), London, 149 pp.
46. Lillegraven, J. A., and G. Krusat. 1991. Cranio-mandibular anatomy of Haldanodon exspectatus (Docodonta; Mammalia) from the Late Jurassic of Portugal and its implications to the evolution of mammalian characters. University of Wyoming Contributions to Geology 28:39-138.
47. Luo, Z. 1994. Sister-group relationships of mammals and transformation of diagnostic mammalian characters; pp. 98-128 in N. C. Fraser and H.-D. Sues (eds.). In the Shadow of the Dinosaurs: Early Mesozoic Tetrapods. Cambridge University Press.
48. Luo, Z. and A. W. Crompton. 1994. Transformation of the quadrate (incus) through the transition from non-mammalian cynodonts to mammals. Journal of Vertebrate Paleontology 14:341-374.
49. Martinez, R. N., C. L. May, and C. A. Forster. 1996. A new carnivorous cynodont from the Ischigualasto Formation (Late Triassic, Argentina), with comments on eucynodont phylogeny. Journal of Vertebrate Paleontology 16:271-284.
50. Rogers, R. R., C. C. Swisher III, P. C. Sereno, A. M. Monetta, C. A. Forster, and R. N. Martinez. 1993. The Ischigualasto tetrapod assemblage (Late Triassic, Argentina) and ‘“Arü’Ar dating of dinosaur origins. Science 260:794-797.
51. Römer, A. S. 1969. The Chañares (Argentina) Triassic reptile fauna. V. A new chiniquodontid cynodont, Probelesodon /ewAi-Cynodont ancestry. Breviora 333:1-24.
52. Rougier, G. W, J. R. Wible, and J. A. Hopson. 1992. Reconstruction of the cranial vessels in the early Cretaceous mammal Vincelestes neuquenianus: implications for the evolution of the mammalian cranial vascular system. Journal of Vertebrate Paleontology 12: 188-216.
53. Rowe, T. 1986. Osteological diagnosis of Mammalia, L. 1758, and its relationships to extinct Synapsida. Ph.D. dissertation. University of California, Berkeley, 446 pp.
54. Rowe, T. 1988.Definition, diagnosis and origin of Mammalia. Journal of Vertebrate Paleontology 8:241-264.
55. Rowe, T. 1993.Phylogenetic systematics and the early history of mammals; pp. 129-145 in F. S. Szalay, M. J. Novacek, and M. C. McKenna (eds.). Mammal Phytogeny. Mesozoic Differentiation, Multituberculates, Monotremes, Early Therians, and Marsupials. Springer Verlag.
56. Schultz, C. L. 1995. Subdivisao do Triàssico do RS com base em macrofósseis: problemas e perspectivas. Comunicagòes do Museu de Ciencias e Tecnologia UBEA/PUCRS, Porto Aiegre 1;25-32.
57. Sues, H.-D. 1985. The relationships of the Tritylodontidae (Synapsida). Zoological Journal of the Linnean Society 85:205-217.
58. Sues, H.-D. 1986.The skull and dentition of two tritylodontid synapsids from the Lower Jurassic of western North America. Bulletin of the Museum of Comparative Zoology 151:217-268.
59. Sues, H.-D., and P. E. Olsen. 1990. Triassic vertebrates of Gondwanan aspect from the Richmond Basin of Virginia. Science 249:1020-1023.
60. Sun, A. 1984. Skull morphology of the tritylodont genus Bienotheroides of Sichuan. Scientia Sinica B, 27:970-984.
61. Wible, J. R. 1991. Origin of Mammalia: the craniodental evidence reexamined. Journal of Vertebrate Paleontology 11:1-28.
62. Wible, J. R., and J. A. Flopson. 1993. Basicranial evidence for early mammal phytogeny; pp. 45-62 in E S. Szalay, M. J. Novacek, and M. C. McKenna (eds.). Mammal Phytogeny. Mesozoic Differentiation, Multituberculates, Monotremes, Early Therians, and Marsupials. Springer-Verlag.
63. Wible, J. R., and 1995.Homologies of the prootic canal in mammals and non-mammalian cynodonts. Journal of Vertebrate Paleontology 15:331-356.