Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-20T01:38:30.626Z Has data issue: false hasContentIssue false
  • English
  • Français

Barysoma lenzii (Synapsida: Dicynodontia) from the Middle Triassic of Brazil, a synonym of Stahleckeria potens

Published online by Cambridge University Press:  20 May 2016

Spencer G. Lucas
Spencer G. Lucas*
Affiliation:
New Mexico Museum of Natural History, 1801 Mountain Road N.W., Albuquerque 87104
Get access Rights & Permissions [Opens in a new window]

Extract

Huene (1935) first reported dicynodonts from the Triassic Santa Maria Formation of southern Brazil. Most common are specimens of Dinodontosaurus from localities near Chiniquà (Chiniquà local fauna) and near Candelaria (Candelaria local fauna) in the state of Rio Grande do Sul. The other Middle Triassic dicynodont found near Chiniquà is the huge (about 3 m body length) Stahleckeria potens, and an equally large Middle Triassic dicynodont, Barysoma lenzii, is known from near Candelaria. A fourth, supposed Santa Maria Formation dicynodont, Jachaleria candelariensis (Araújo and Gonzaga, 1990), is actually from a younger, Upper Triassic, horizon of the Caturrita Formation near Candelaria (Bonaparte, 1982). Here, I argue that Barysoma lenzii is a junior subjective synonym of Stahleckeria potens and discuss the biochronological significance of this synonymy.

Type
Taxonomic Notes
Information
Journal of Paleontology , Volume 67 , Issue 2 , March 1993 , pp. 318 - 321
Copyright
Copyright © The Paleontological Society 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Araújo, D. C., and Gonzaga, T. D. 1980. Uma nova especie de Jachaleria (Therapsida, Dicynodonta) do Triassico do Brasil. Actas II Congreso de Paleontología y Bioestratigrafía y I Congreso Latinoamericano de Paleontología, Buenos Aires 1978, 1:159–174.Google Scholar
Barberena, M. C. 1977. Bioestratigrafia preliminar da formacão Santa Maria. Pesquisas, Porto Allegre, 7:111–129.Google Scholar
Barberena, M. C., Araujo, D. C., and Lavina, E. L. 1985. Late Permian and Triassic tetrapods of southern Brazil. National Geographic Research, 1:5–20.Google Scholar
Bonaparte, J. F. 1966. Chronological survey of the tetrapod-bearing Triassic of Argentina. Breviora, 251:1–13.Google Scholar
Bonaparte, J. F. 1982. Faunal replacement in the Triassic of South America. Journal of Vertebrate Paleontology, 2:362–371.CrossRefGoogle Scholar
Cox, C. B. 1965. New Triassic dicynodonts from South America, their origins and relationships. Philosophical Transactions of the Royal Society of London, Series B, 248:457–516.Google Scholar
Huene, F. von. 1935. Die fossilen Reptilien des Südamerikanischen Gondwanalandes Ergebnisse der Sauriergrabungen in Südbrasilien 1928–29. 1. Ordnung Anomodontia. C. H. Beck'sche Verlagsbuchhandlung, Munich, 92 p.Google Scholar
King, G. M. 1988. Anomodontia. Encyclopedia of Herpetology Part 17C. Gustav Fischer Verlag, Stuttgart, 174 p.Google Scholar
King, G. M. 1990. The Dicynodonts, a Study in Paleobiology. Chapman and Hall, London, 233 p.Google Scholar
Romer, A. S., and Price, L. I. 1944. Stahleckeria lenzii, a giant Triassic Brazilian dicynodont. Bulletin of the Museum of Comparative Zoology at Harvard College, 43:465–491.Google Scholar
Walter, L. 1985. The formation of secondary centers of ossification in kannemeyeriid dicynodonts. Journal of Paleontology, 59:1486–1488.Google Scholar