Results 41 to 50 of about 3,000 (164)

Growth dynamics, skeletochronology, and histovariability of the theropod dinosaur Berthasaura leopoldinae

open access: yesThe Anatomical Record, EarlyView.
Osteohistological sampling on different bones of theropod dinosaur documents discrepant age record, growth, and metabolism. This could result unprecise paleobiological inferences if samplings are based on single bones. However, multi‐bone sampling can attenuate these discrepancies, helping to infer growth dynamics and physiology of these extinct ...
Geovane Alves de Souza   +3 more
wiley   +1 more source

Centro de Pesquisa de História Natural e Arqueologia do Maranhão

open access: yesComunicação & Educação, 2010
O Centro de Pesquisa de História Natural e Arqueologia do Maranhão – CPHNAMA, vinculado à Secretaria de Cultura do Estado, tem como objetivo promover o estudo, a valorização e a preservação do acervo patrimonial maranhense, especificamente os recursos e ...
Deusdédit Carneiro Leite Filho
doaj  

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

open access: yesThe Anatomical Record, EarlyView.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro   +7 more
wiley   +1 more source

MISSÕES RELIGIOSAS IBÉRICAS NA PARAÍBA COLONIAL. Atividades historiográficas e prospecções arqueológicas dos antigos redutos missioneiros

open access: yesClio Arqueológica, 2020
O presente artigo configura-se como a culminância dum longo processo investigativo acerca da história colonial da Paraíba, especificamente acerca das missões religiosas e fazendas jesuítas que se estabeleceram no território da Parahyba do Norte.
Juvandi de Souza Santos   +1 more
doaj   +1 more source

A new species of Allodaposuchus (Eusuchia, Crocodylia) from the Maastrichtian (Late Cretaceous) of Spain: phylogenetic and paleobiological implications [PDF]

open access: yesPeerJ, 2015
Background. The Late Cretaceous is a keystone period to understand the origin and early radiation of Crocodylia, the group containing all extant lineages of crocodilians.
Alejandro Blanco   +5 more
doaj   +2 more sources

15 anos da paleontologia molecular

open access: yesKhronos, 2020
Comunicação sobre a descoberta de tecidos moles em fósseis, que permitem a controversa extração do DNA, e inauguraram o recente campo da paleontologia molecular.
openaire   +3 more sources

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

open access: yesThe Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro   +1 more
wiley   +1 more source

Widespread distribution of large silesaurids evidenced by a new record from the Middle Triassic of southwest Gondwana

open access: yesThe Anatomical Record, EarlyView.
The largest silesaurid known from South America is described here, demonstrating that silesaurids reached large body sizes in southwestern Gondwana. This discovery further underscores the widespread geographic distribution and temporal persistence of large silesaurids across Pangea, despite faunal turnovers and environmental events such as the Carnian ...
Rodrigo Temp Müller
wiley   +1 more source

Hindlimb functional morphology and locomotor biomechanics of the small Late Triassic pseudosuchian reptile Gracilisuchus stipanicicorum (Archosauria: Gracilisuchidae)

open access: yesJournal of Anatomy, EarlyView.
A three‐dimensional biomechanical model of the musculoskeletal system is used to analyse the potential locomotor functions of the small (~1 kg) Late Triassic archosaurian reptile Gracilisuchus stipanicicorum. The study finds that, potentially like the ancestral archosaur, this taxon was probably quadrupedal, plantigrade and neither strongly sprawling ...
Agustina Lecuona   +3 more
wiley   +1 more source

Avaliação crítica da abordagem paleontológica em livros didáticos dos anos finais do ensino fundamental

open access: yesAlexandria
A Paleontologia é uma ciência fundamental no processo de ensino-aprendizagem para a compreensão de processos naturais complexos e para a formação de cidadãos críticos, mas seu conhecimento ainda está restrito ao meio acadêmico.
Clarice Assumpção da Costa   +4 more
doaj   +1 more source

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