Results 71 to 80 of about 23,192 (236)

Una ròtula amb molt de joc per a en Pau [PDF]

open access: yes, 2014
La pelvis i la forma de les falanges de Pierolapithecus catalaunicus (conegut popularment com en Pau) indicarien que es desplaçava a quatre potes per sobre les branques.
Institut Català de Paleontologia Miquel Crusafont
core   +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

Controvèrsies científiques i repercussions socials de la paleontologia humana [PDF]

open access: yes, 2012
Controvèrsies científiques i repercussions socials de la paleontologia ...
Francisco Pelayo
core   +1 more source

A new sphenodontian (Lepidosauria: Rhynchocephalia) from the Late Triassic of Argentina and the early origin of the herbivore opisthodontians [PDF]

open access: yes, 2013
Sphenodontians were a successful group of rhynchocephalian reptiles that dominated the fossil record of Lepidosauria during the Triassic and Jurassic. Although evidence of extinction is seen at the end of the Laurasian Early Cretaceous, they appeared to
Abelin, Diego   +8 more
core   +2 more sources

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

Microbially generated ferruginous crusts: A potential biosignature of continental input in coastal settings

open access: yesSedimentology, EarlyView.
ABSTRACT Thin ferruginous sandy crusts are common on top of sandstone beds in the Early Permian post‐glacial deposits of the Paraná Basin in southern Brazil. These crusts usually preserve wrinkle structures, suggesting that they might be a product of microbial mediation.
Patrícia Weschenfelder   +2 more
wiley   +1 more source

OBITUARIO Doctora María Elena Ibarra Martín

open access: yesRevista de Investigaciones Marinas, 2023
La Doctora María Elena Ibarra Martin nació el 27 de diciembre de 1932, en Santiago de Cuba. En 1959 fue investigadora del Instituto Cubano de Cartografía y Catastro. De 1960 a 1963 Jefe del Laboratorio de Paleontología y Petrografía del Instituto Cubano
Ana María Suárez Alfonso
doaj  

Novos restos de Notosuchus terrestris Woodward, 1896 (Crocodyliformes: Mesoeucrocodylia) do Cretáceo Superior de Neuquén, Patagônia, Argentina [PDF]

open access: yes, 2008
New materials of Notosuchus terrestris are here described. They were found on Bajo de la Carpa Formation outcrops, near the Universidad Nacional del Comahue, Neuquén City.
Calvo, Jorge, Fiorelli, Lucas Ernesto
core  

Lower Cretaceous (Hauterivian-Albian) ammonite biostratigraphy in the Maestrat Basin (E Spain) [PDF]

open access: yes, 2014
Peer reviewedPublisher ...
Bover-Arnal, T.   +11 more
core   +1 more source

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