A Late Cretaceous lizard assemblage from the Allen Formation, northern Patagonia, Argentina DOI
Fernando F. Garberoglio, Raúl O. Gómez, Sebastián Apesteguı́a

et al.

Historical Biology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 13

Published: May 4, 2024

Lizards are poorly known from the Mesozoic of South America, including several specimens Lower and Upper Cretaceous Brazil, only a few Patagonia. Here, we describe new lizard assemblage single bone-bearing level in Allen Formation (upper Campanian – lower Maastrichtian), cropping out at Cerro Tortuga locality, Río Negro Province, northern Patagonia, Argentina. We recognise presence three different taxa, all them represented by partially isolated maxillae, belonging to lineages: pleurodontan Iguania; Teiioidea; possibly Scincoidea. These support quite diverse during Late southern suggesting that their absence other deposits Patagonia represents preservational and/or sampling bias. The taxonomic diversity also points broad ecological diversity, because taxa strongly differ dental morphology inferred dietary habits. indicates lizards, along with snakes sphenodontians, were an important component lepidosaurian fauna America and, likely, Gondwana.

Language: Английский

A reassessment of the historical fossil findings from Bahia State (Northeast Brazil) reveals a diversified dinosaur fauna in the Lower Cretaceous of South America DOI Creative Commons
Kamila L. N. Bandeira, Bruno A. Navarro, Rodrigo V. Pêgas

et al.

Historical Biology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 42

Published: April 11, 2024

Supposed dinosaur remains were collected between 1859 and 1906 in the Lower Cretaceous Recôncavo Basin (Northeast Brazil). Since these materials remained undescribed, most considered lost. Recently, some of historical specimens rediscovered Natural History Museum London, providing an opportunity to revisit them after 160 years. The come from five different sites, corresponding Massacará (Berriasian-Barremian) Ilhas (Valanginian-Barremian) groups. Identified bones comprise mainly isolated vertebral centra ornithopods, sauropods, theropods. Appendicular include a theropod pedal phalanx, humerus, distal half left femur with elasmarian affinities. Despite their fragmentary nature, represent earliest discovered South America, enhancing our understanding faunas Northeast Brazil. assemblage resembles coeval units Brazil, such as Rio do Peixe Basin, where ornithopods coexist sauropods This study confirms presence ornithischian dinosaurs Brazil based on osteological evidence, expanding biogeographic temporal range before continental rifting America Africa. Additionally, findings reinforce fossiliferous potential deposits Bahia State, which have been underexplored since initial discoveries.

Language: Английский

Citations

7
A new ornithopod from the Upper Cretaceous (Huincul Formation) of northwestern Patagonia, Argentina: Implications on elasmarian postcranial anatomy DOI

Rodrigo Álvarez Nogueira,

Sebastián Rozadilla,

Federico L. Agnolín

et al.

Cretaceous Research, Journal Year: 2024, Volume and Issue: 159, P. 105874 - 105874

Published: March 11, 2024

Language: Английский

Citations

4
The K/Pg event at high southern latitudes: new evidence from continental deposits in the Magallanes/Austral Basin, Patagonia, South America DOI
Leslie M.E. Manríquez, Guilherme Krahl, Marcelo Ayres Carvalho

et al.

Cretaceous Research, Journal Year: 2024, Volume and Issue: 162, P. 105931 - 105931

Published: May 22, 2024

Language: Английский

Citations

2
Fossil vertebrates from the Cerro Fortaleza Formation (Upper Cretaceous), Santa Cruz Province, Argentina DOI
Federico L. Agnolín, Gerardo P. Álvarez-Herrera,

Mauro Aranciaga Rolando

et al.

Cretaceous Research, Journal Year: 2023, Volume and Issue: 154, P. 105735 - 105735

Published: Oct. 17, 2023

Language: Английский

Citations

4
The ontogenetic status of a small hadrosauroid dinosaur from the uppermost Cretaceous of Bulgaria, and implications for the paleobiogeography and assembly of European island faunas DOI
Vladimir Nikolov, Docho Dochev, Stephen L. Brusatte

et al.

Cretaceous Research, Journal Year: 2024, Volume and Issue: 157, P. 105819 - 105819

Published: Jan. 1, 2024

Language: Английский

Citations

0
Lower Cretaceous iguanodontian dinosaurs from the southwestern margin of Gondwana DOI
Jhonatan Alarcón-Muñoz, Penélope Cruzado‐Caballero, Omar Vicencio-Campos

et al.

Cretaceous Research, Journal Year: 2024, Volume and Issue: 165, P. 105983 - 105983

Published: Aug. 17, 2024

Language: Английский

Citations

0
A Late Cretaceous lizard assemblage from the Allen Formation, northern Patagonia, Argentina DOI
Fernando F. Garberoglio, Raúl O. Gómez, Sebastián Apesteguı́a

et al.

Historical Biology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 13

Published: May 4, 2024

Lizards are poorly known from the Mesozoic of South America, including several specimens Lower and Upper Cretaceous Brazil, only a few Patagonia. Here, we describe new lizard assemblage single bone-bearing level in Allen Formation (upper Campanian – lower Maastrichtian), cropping out at Cerro Tortuga locality, Río Negro Province, northern Patagonia, Argentina. We recognise presence three different taxa, all them represented by partially isolated maxillae, belonging to lineages: pleurodontan Iguania; Teiioidea; possibly Scincoidea. These support quite diverse during Late southern suggesting that their absence other deposits Patagonia represents preservational and/or sampling bias. The taxonomic diversity also points broad ecological diversity, because taxa strongly differ dental morphology inferred dietary habits. indicates lizards, along with snakes sphenodontians, were an important component lepidosaurian fauna America and, likely, Gondwana.

Language: Английский

Citations

0