Results 81 to 90 of about 127 (100)

Abelisauridae Bonaparte & Novas 1985

Abelisauridae The fossil record of abelisaurids is one of the most abundant in the Kem Kem Group, being less abundant only than spinosaurids. Russell (1996) described several bone fragments, including two partial right dentaries, in addition to two partial cervical vertebrae that were attributed to an undetermined theropod, but recently were assigned ...
Lacerda, Mauro B S, Isasmendi, Erik, Delcourt, Rafael, Fernandes, Marcelo A, Hutchinson, John R   +4 more
openaire   +2 more sources

The Gondwanian theropod families Abelisauridae and Noasauridae

Historical Biology, 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 fenestra, the quadrate fused to the quadratojugal, and cervical vertebrae with vestigial neural spines and hypertrophied epipophyses. The families appear linked
openaire   +1 more source

Revised morphology of Pycnonemosaurus nevesi Kellner & Campos, 2002 (Theropoda: Abelisauridae) and its phylogenetic relationships

Zootaxa, 2017
Abelisaurid theropods were most abundant in the Gondwana during the Cretaceous Period. Pycnonemosaurus nevesi Kellner & Campos, 2002 was the first abelisaurid dinosaur described from the Bauru Group (Brazil, Upper Cretaceous). Nevertheless, its initial description was based on the comparison of a restricted number of remains with other abelisaurids.
openaire   +2 more sources

CRANIOFACIAL ANATOMY OFMAJUNGASAURUS CRENATISSIMUS(THEROPODA: ABELISAURIDAE) FROM THE LATE CRETACEOUS OF MADAGASCAR

Journal of Vertebrate Paleontology, 2007
ABSTRACT Recent fieldwork in the Upper Cretaceous (Maastrichtian) Maevarano Formation, northwest Madagascar, has yielded important new skull material of the abelisaurid theropod, Majungasaurus crenatissimus. One of these specimens in particular—a virtually complete, disarticulated, and well preserved skull—greatly elucidates the craniofacial osteology ...
Scott D. Sampson, Lawrence M. Witmer
openaire   +1 more source

New abelisaurid material from the Anacleto Formation (Campanian, Upper Cretaceous) of Patagonia, Argentina, shed light on the diagnosis of the Abelisauridae (Theropoda, Ceratosauria)

Journal of South American Earth Sciences, 2021
Abstract Abelisauridae is a theropod clade with a wide distribution in the Late Cretaceous of Gondwana. Some of the best preserved abelisaurid specimens were recovered from Patagonia (Argentina) such as Skorpiovenator, Ilokelesia, Carnotaurus and Aucasaurus.
Mattia A. Baiano, Rodolfo A. Coria, Juan I. Canale, Federico A. Gianechini   +3 more
openaire   +2 more sources

PALEOENVIRONMENT AND PALEOECOLOGY OFMAJUNGASAURUS CRENATISSIMUS(THEROPODA: ABELISAURIDAE) FROM THE LATE CRETACEOUS OF MADAGASCAR

Journal of Vertebrate Paleontology, 2007
ABSTRACT The abelisaurid theropod Majungasaurus crenatissimus inhabited the plains of northwestern Madagascar during the Late Cretaceous. It lived alongside other nonavian dinosaurs, including a small-bodied noasaurid theropod (Masiakasaurus knopfleri) and a titanosaurian sauropod (Rapetosaurus krausei).
Raymond R. Rogers, David W. Krause, Kristina Curry Rogers, Armand H. Rasoamiaramanana, Lydia Rahantarisoa   +4 more
openaire   +1 more source

AN ENIGMATIC TOOTH OF ABELISAURIDAE FROM PEIRÓPOLIS PALEONTOLOGICAL SITE (MARÍLIA FORMATION, BAURU GROUP) WITH CHARACTERS OF TROODONTIDADE

Biodiversidade, 2021
In this work, the results of an analysis of an isolated tooth of theropod dinosaur, found in the Paleontological Site of Peirópolis, in the state os Minas Gerais, correspondent to the Marília Formation, a component of an important brazilian basin, where relevant fossil assemblages were found.
dos Santos Pereira, Camila, L. Brusatte, Stephen, dos Santos Sousa, Matheus, Roberto A. Candeiro, Carlos   +3 more
openaire   +1 more source

Taxonomic identification of isolated theropod teeth: The case of the shed tooth crown associated with Aerosteon (Theropoda: Megaraptora) and the dentition of Abelisauridae

Cretaceous Research, 2020
Abstract Shed teeth are usually the most abundant theropod material on a dinosaur fossil site and are constantly reported in the literature. Although new quantitative techniques have emerged to identify isolated theropod teeth with better accuracy, they remain difficult to assign to a certain family-level or genus-level taxon because of the presence ...
Christophe Hendrickx, Emanuel Tschopp, Martín d. Ezcurra   +2 more
openaire   +2 more sources

A new close relative ofCarnotaurus sastreiBonaparte 1985 (Theropoda: Abelisauridae) from the Late Cretaceous of Patagonia

Journal of Vertebrate Paleontology, 2002
Infoquest Foundation, 160 Cabrini Boulevard #48, New York, New York 10033, U.S.AINTRODUCTIONAbelisaur dinosaurs, theropods with unusual horned skullssuch as Majungatholus (Sampson et al., 1998) and Carnotaurus(Bonaparte, 1985), are the most abundant land predators fromthe Late Cretaceous of Gondwana (Bonaparte, 1996; Novas,1997; Sampson et al., 1998 ...
Rodolfo A. Coria, Luis M. Chiappe, Lowell Dingus   +2 more
openaire   +1 more source

Abelisauridae (Dinosauria: Theropoda) from the Late Jurassic of Portugal and dentition-based phylogeny as a contribution for the identification of isolated theropod teeth

Zootaxa, 2014
Theropod dinosaurs form a highly diversified clade, and their teeth are some of the most common components of the Mesozoic dinosaur fossil record. This is the case in the Lourinhã Formation (Late Jurassic, Kimmeridgian-Tithonian) of Portugal, where theropod teeth are particularly abundant and diverse. Four isolated theropod teeth are here described and
Christophe, Hendrickx, Octávio, Mateus
openaire   +2 more sources