A bizarre predatory dinosaur from the Late Cretaceous of Madagascar
@article{Sampson2001ABP, title={A bizarre predatory dinosaur from the Late Cretaceous of Madagascar}, author={Scott D. Sampson and Matthew T. Carrano and Catherine A. Forster}, journal={Nature}, year={2001}, volume={409}, pages={504-506} }
Here we report the discovery of a small-bodied (∼1.8 m) predatory dinosaur from the Late Cretaceous (Maastrichtian) of Madagascar. Masiakasaurus knopfleri, gen. et sp. nov., represented by several skull elements and much of the postcranial skeleton, is unique in being the only known theropod with a highly procumbent and distinctly heterodont lower dentition. Such a derived dental morphology is otherwise unknown among dinosaurs. Numerous skeletal characteristics indicate that Masiakasaurus is a…
112 Citations
A New Abelisaurid (Dinosauria, Theropoda) from the Lameta Formation (Cretaceous, Maastrichtian) of India
- Geography, Environmental Science
- 2003
Many isolated dinosaur bones and teeth have been recovered from Cretaceous rocks in India, but associated remains are exceedingly rare. We report on the discovery of associated cranial and…
A troodontid dinosaur from the latest Cretaceous of India.
- Environmental Science, GeographyNature communications
- 2013
The discovery of a troodontid tooth from the uppermost Cretaceous Kallamedu Formation in the Cauvery Basin of South India is the first Gondwanan record for Troodontids, extending their geographic range by nearly 10,000 km, and representing the first confirmed non-avian tetanuran dinosaur from the Indian subcontinent.
A new desert-dwelling dinosaur (Theropoda, Noasaurinae) from the Cretaceous of south Brazil
- Geography, Environmental ScienceScientific Reports
- 2019
The recovered skeletal parts show that the new dinosaur was just over 1 m long, with a unique anatomy among theropods, and a phylogenetic analysis nests the new taxon within the Noasaurinae clade, which is unresolved because of the multiple alternative positions that Noasaurus leali can acquire in the optimal trees.
Non-avian theropod dinosaurs from the early Late Cretaceous of central Europe
- Geography, Environmental Science
- 2010
New theropod remains from the Late Jurassic Cañadón Calcáreo formation of Chubut, Argentina
- Environmental Science, Geography
- 2021
A new Abelisauroid from the Upper Cretaceous of Brazil
- Biology, Geography
- 2013
This is the best theropod specimen recovered from this unit after five decades of collecting and shows unique characters such as a marked asymmetry of lateral and medial condyles in posterior view, and a very deep triangular articular face for the astragalus, suggesting that it represents a new taxon.
A new abelisaurid from the Huincul Formation (Cenomanian-Turonian; Upper Cretaceous) of Río Negro province, Argentina
- Geography, Environmental Science
- 2020
Noasaurid theropod (Abelisauria) femur from the Upper Cretaceous Bauru Group in Triângulo Mineiro (Southeastern Brazil)
- Geography, Environmental Science
- 2019
Post-cranial remains of ‘coelurosaurs’ (Dinosauria, Theropoda) from the Late Jurassic of Tanzania
- Geography, Environmental ScienceGeological Magazine
- 2005
Small theropod post-cranial material from Tendaguru, Tanzania, the only known Late Jurassic theropod locality in the Southern Hemisphere, is reviewed. Material originally described as ‘coelurosaurs’…
An unusual oviraptorosaurian dinosaur from China
- Environmental Science, GeographyNature
- 2002
Oviraptorosaurians are an unusual group of theropod dinosaurs, with highly specialized skulls. Here we report a new oviraptorosaurian, Incisivosaurus gauthieri, gen. et sp. nov., from the lowest part…
References
SHOWING 1-10 OF 25 REFERENCES
Predatory dinosaur remains from madagascar: implications for the cretaceous biogeography of gondwana
- Geography, Environmental ScienceScience
- 1998
One specimen includes a nearly complete and exquisitely preserved skull with thickened pneumatic nasals, a median frontal horn, and a dorsal projection on the parietals of Abelisauridae.
The phylogenetic position of the Tyrannosauridae; implications for theropod systematics
- Environmental Science, Geography
- 1994
The inclusion of the Tyrannosauridae within Maniraptora suggests a major adaptive radiation of coelurosaurs within Cretaceous Asiamerica comparable to contemporaneous radiations in various herbivorous dinosaurian clades.
The Gondwanian theropod families Abelisauridae and Noasauridae
- Environmental Science, Geography
- 1991
The theropod families Abelisauridae and Noasauridae appear closely related because of shared derived characters such as the short anterior area of the maxilla, the small or absent preantorbital…
The theropod ancestry of birds: new evidence from the late cretaceous of madagascar
- BiologyScience
- 1998
Rahona has a robust, hyperextendible second digit on the hind foot that terminates in a sicklelike claw, a unique characteristic of the theropod groups Troodontidae and Dromaeosauridae.
Primitive dinosaur skeleton from Argentina and the early evolution of Dinosauria
- Environmental Science, GeographyNature
- 1993
The discovery of Eoraptor supports the hypothesis that dinosaurs diverged rapidly at small body size from a common ancestor, with the principal herbivorous and carnivorous lineages present by the middle Carnian.
The evolution of dinosaurs.
- Environmental Science, GeographyScience
- 1999
The ascendancy of dinosaurs on land near the close of the Triassic now appears to have been as accidental and opportunistic as their demise and replacement by therian mammals at the end of the…
Cosmopolitanism among Gondwanan Late Cretaceous mammals
- Geography, Environmental ScienceNature
- 1997
The occurrence of a highly specialized and distinctive group of extinct mammals, the Sudamericidae (Gondwanatheria), in the Late Cretaceous of Madagascar and India is reported, which is the first evidence of gondwanatheres outside South America and the first indication of cosmopolitanism among Late CRETaceous Gondwanan mammals.
THE ORIGIN AND EVOLUTION OF DINOSAURS
- Geography, Environmental Science
- 1997
The phylogenetic history of ornithischian and saurischian dinosaurs reveals evolutionary trends such as increasing body size and Adaptations to herbivory in dinosaurs were not tightly correlated with marked floral replacements.
Stratigraphic Analysis of Upper Cretaceous Rocks in the Mahajanga Basin, Northwestern Madagascar: Implications for Ancient and Modern Faunas
- Geology, GeographyThe Journal of Geology
- 2000
The revised age of the Maevarano Formation serves to expand the global perspective on the K/T event by clarifying the age of a diverse, and arguably the best preserved, sample of Gondwanan vertebrates from the terminal Cretaceous.