Rebbachisauridae

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Rebbachisaurids
Temporal range: Early Cretaceous to Late Cretaceous, 140–93 Ma
Limaysaurus.jpg
Limaysaurus tessonei skeleton restoration
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Saurischia
Suborder: Sauropodomorpha
Clade: Sauropoda
Superfamily: Diplodocoidea
Family: Rebbachisauridae
Bonaparte, 1997
Genera

Rebbachisauridae is a family of sauropod dinosaurs known from fragmentary fossil remains from the Cretaceous of South America, Africa, and Europe.

Taxonomy[edit]

Sauropod specialist Jack McIntosh in 1990 included the first known genus, the giant North African sauropod Rebbachisaurus in the family Diplodocidae, subfamily Dicraeosaurinae, on the basis of skeletal details. With the discovery in subsequent years of a number of additional forms, it was realised that the rebbachisaurs constitute a distinct group of dinosaurs, and in 1997 the Argentine paleontologist José Bonaparte named the family Rebbachisauridae. Whitlock, 2011 defined two new subfamilies Nigersaurinae and Limaysaurinae within Rebbachisauridae. Cladogram of the Rebbachisauridae after Fanti et al., 2013, which is based on Carballido et al., 2012:[2]

Rebbachisauridae

Amazonsaurus

Histriasaurus

Zapalasaurus

Comahuesaurus

Limaysaurinae

Rayososaurus

Rebbachisaurus

Cathartesaura

Limaysaurus

Nigersaurinae

Nigersaurus

Demandasaurus

Tataouinea

Cladogram after Fanti et al., 2015.[3]

Rebbachisauridae

Amazonsaurus

Zapalasaurus

Histriasaurus

Comahuesaurus

Khebbashia
Limaysaurinae

Cathartesaura

Limaysaurus

Rebbachisaurinae

Katepensaurus

Nigersaurus

Rebbachisaurus

Demandasaurus

Tataouinea

21st century in paleontology20th century in paleontology2030s in paleontology2020s in paleontology2010s in paleontology2000s in paleontology1990s in paleontology1980s in paleontology1970s in paleontology1960s in paleontology1950s in paleontology1940s in paleontologyKatepensaurusTataouineaNigersaurusDemandasaurusLimaysaurusCathartesauraRebbachisaurusRayososaurusZapalasaurusNopcsaspondylusHistriasaurusComahuesaurusAmazonsaurus21st century in paleontology20th century in paleontology2030s in paleontology2020s in paleontology2010s in paleontology2000s in paleontology1990s in paleontology1980s in paleontology1970s in paleontology1960s in paleontology1950s in paleontology1940s in paleontology

Evolutionary relationships and characteristics[edit]

Nigersaurus taqueti teeth

Although all authorities agree that the rebbachisaurids are members of the superfamily Diplodocoidea, they lack the bifid (divided) cervical neural spines that characterise the diplodocids and dicraeosaurids, and for this reason are considered more primitive than the latter two groups. It is not yet known whether they share the distinctive whip-tail of the latter two taxa.

Rebbachisaurids are distinguished from other sauropods by their distinctive teeth, which have low angle, internal wear facets and asymmetrical enamel.

Unique among sauropods, at least some rebbachisaurids (such as Nigersaurus) are characterised by the presence of tooth batteries, similar to those of hadrosaur and ceratopsian dinosaurs. Such a feeding adaptation has thus developed independently three times among the dinosaurs.

So far, rebbachisaurids are known only from the middle and early part of the Late Cretaceous. Unless the nemegtosaurids are in fact diplodocoids (rather than titanosaurs), then the rebbachisaurids represent the last known representatives of this clade, and lived alongside the titanosaurs until fairly late in the Cretaceous. So far, no rebbachisaurids are known from the very end of the Cretaceous period.

References[edit]

  • Bonaparte J.F. (1997). "Rayososaurus grioensis Bonaparte 1995". Ameghiniana. 34 (1): 116.
  • McIntosh, J. S., 1990, "Sauropoda" in The Dinosauria, Edited by David B. Weishampel, Peter Dodson, and Halszka Osmólska. University of California Press, pp. 345–401.
  • Upchurch, P., Barrett, P.M. and Dodson, P. 2004. "Sauropoda". In The Dinosauria, 2nd edition. Weishampel, Dodson, and Osmólska (eds.). University of California Press, Berkeley. pp. 259–322.
  • Wilson J.A. (2002). "Sauropod dinosaur phylogeny: critique and cladistic analysis". Zoological Journal of the Linnean Society. 136 (2): 215–275. doi:10.1046/j.1096-3642.2002.00029.x.
  • ------ (2005) "Overview of Sauropod Phylogeny and Evolution", in The Sauropods: Evolution and Paleobiology
  • Wilson, J. A. and Sereno, P.C. (2005) "Structure and Evolution of a Sauropod Tooth Battery" in The Sauropods: Evolution and Paleobiology in Curry Rogers and Wilson, eds, 2005, The Sauropods: Evolution and Paleobiology, University of California Press, Berkeley, ISBN 0-520-24623-3
  1. ^ Paul C. Sereno, Jeffrey A. Wilson, Lawrence M. Witmer, John A. Whitlock, Abdoulaye Maga, Oumarou Ide, Timothy A. Rowe (2007). Kemp, Tom, ed. "Structural Extremes in a Cretaceous Dinosaur". PLoS ONE. 2 (11): e1230. doi:10.1371/journal.pone.0001230. PMC 2077925. PMID 18030355.
  2. ^ Carballido, José Luis; Salgado, Leonardo; Pol, Diego; Canudo, José Ignacio; Garrido, Alberto (2012). "A new basal rebbachisaurid (Sauropoda, Diplodocoidea) from the Early Cretaceous of the Neuquén Basin; evolution and biogeography of the group". Historical Biology. 24 (6): 631–654. doi:10.1080/08912963.2012.672416.
  3. ^ Fanti, F.; Cau, A.; Cantelli, L.; Hassine, M.; Auditore, M. (2015). "New Information on Tataouinea hannibalis from the Early Cretaceous of Tunisia and Implications for the Tempo and Mode of Rebbachisaurid Sauropod Evolution". PLOS ONE. 10 (4): e123475. doi:10.1371/journal.pone.0123475. PMC 4414570. PMID 25923211.