Results 71 to 80 of about 5,498 (228)

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  

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

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

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

Exploring the cranial morphology and possible convergences of Triassic non‐crocodylomorph pseudosuchians (Archosauria: Pseudosuchia) with other sauropsids through linear morphometrics

open access: yesThe Anatomical Record, EarlyView.
Abstract Triassic pseudosuchians had highly diversified cranial morphologies. These archosaurs occupied diverse ecological roles, ranging from terrestrial predators and herbivores to semiaquatic ambush predators and possible waders. Here, we apply linear cranial morphometrics to assess possible convergences with other sauropsids from the clades ...
Rafael Terras   +3 more
wiley   +1 more source

Occurrence of multiple congenital anomalies in Potamotrygon amandae (Elasmobranchii, Potamotrygoninae) embryos, including the first report of bicephaly

open access: yesJournal of Fish Biology, EarlyView.
Abstract Reports of teratogenic embryos in elasmobranchs have been documented in multiple species, with proposed aetiologies including environmental disturbances, genetic mutations, predation, exposure to endocrine‐disrupting compounds and maternal stress.
Douglas de Castro Ribeiro   +2 more
wiley   +1 more source

Virtual brain endocasts of the palaeanodont Metacheiromys marshi and the neurosensory evolution of early Pholidotamorpha

open access: yesJournal of Anatomy, EarlyView.
We describe the endocranial anatomy of Metacheiromys marshi. Decrease in olfaction and eye movement control occurred through time in Pholidotamorpha and is likely linked to fossorial adaptations. The development of the orbital gyrus might be related to the evolution of myrmecophagy and the emergence of a protrusile tongue in early Pholidotamorpha ...
Eduard Cabasés Bru   +4 more
wiley   +1 more source

The variability of giraffe skull morphology

open access: yesJournal of Anatomy, EarlyView.
What does giraffe skull shape tell us about their development and evolution? Abstract Giraffe (Giraffa spp.) are among the most unique and charismatic extant animals, largely due to their distinct morphology. The evolutionary and developmental origin of ossicones is a key factor in giraffid biology, yet other features building their characteristic head
Nikolaos Kargopoulos   +15 more
wiley   +1 more source

Paleontologia e ensino básico: análise dos Parâmetros Curriculares Nacionais e dos livros didáticos em Juiz de Fora, MG, Brasil

open access: yes, 2021
Paleontology and basic education: analysis of Parâmetros Curriculares Nacionais and textbooks in Juiz de Fora, MG, Brazil. Paleontology has a crucial role in teaching Science and Biology for helping to understand different natural processes, although ...
Camila Neves da Silva   +3 more
semanticscholar   +1 more source

Computed tomography reveals multiple origins of extreme caudal vertebral pneumaticity in sauropod dinosaurs

open access: yesJournal of Anatomy, EarlyView.
Here, we present novel CT scan data of caudal vertebrae of six Middle–Late Jurassic sauropods, representing several eusauropod lineages. We synthesise these new data with a comprehensive critical appraisal of purported external and internal evidence for caudal vertebral PSP in Sauropodomorpha.
Samantha L. Beeston   +5 more
wiley   +1 more source

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