Results 41 to 50 of about 615 (171)

Dujardinascaris helicina (Nematoda: Ascarididae) parásito de Crocodylus acutus (Reptilia: Crocodylidae) en Puerto Vallarta, Jalisco, México

open access: yesRevista Mexicana de Biodiversidad, 2016
El cocodrilo de río (Crocodylus acutus, Cuvier, 1807) es una especie protegida en México. En este trabajo se han estudiado los contenidos obtenidos por medio de lavados gástricos a 53 C.
Jonathan Nácar-Muñoz   +5 more
doaj   +1 more source

Taxonomic revision of Eoalligator (Crocodylia, Brevirostres) and the paleogeographic origins of the Chinese alligatoroids [PDF]

open access: yesPeerJ, 2016
Background. The primarily Neotropical distribution of living alligatoroids raises questions as to when and how the ancestors of Alligator sinensis migrated to China.
Yan-yin Wang, Corwin Sullivan, Jun Liu
doaj   +2 more sources

The pseudosuchian record in paleohistology: A small review. [PDF]

open access: yesAnat Rec (Hoboken)
Abstract Archosauria originated around the Earth's largest biotic crisis that severely affected all ecosystems globally, the Permotriassic Mass extinction event, and comprises two crown‐group lineages: the bird‐lineage and the crocodylian lineage. The bird lineage includes the iconic pterosaurs, as well as dinosaurs and birds, whereas the crocodylian ...
Scheyer TM.
europepmc   +2 more sources

Skeletal pathologies in extant crocodilians as a window into the paleopathology of fossil archosaurs

open access: yesThe Anatomical Record, Volume 309, Issue 10, Page 2698-2724, October 2026.
Abstract Crocodilians, together with birds, are the only extant relatives to many extinct archosaur groups, making them highly important for interpreting paleopathological conditions in a phylogenetic disease bracketing model. Despite this, comprehensive data on osteopathologies in crocodilians remain scarce.
Alexis Cornille   +6 more
wiley   +1 more source

Fossil freshwater fishes from the Pliocene of northern Colombia and the palaeogeography of northern South America

open access: yesPapers in Palaeontology, Volume 12, Issue 4, July/August 2026.
Abstract Freshwater fishes from the northwestern Colombian Andes are reported from the Pliocene Sincelejo and Ware formations. A total of 10 taxa have been identified, involving two orders, five families and nine genera. Characters from dental morphology, fin spines and cranial bones are provided as taxonomic tools for the study of fossil fishes.
Gustavo A. Ballen   +6 more
wiley   +1 more source

Population genetics and molecular identification of Crocodylus acutus and C. moreletii (Crocodilia: Crocodylidae) in captive and wildlife populations

open access: yesRevista de Biología Tropical, 2022
Introduction: There is low evidence of genetic diversity and hybridization processes within Crocodylus acutus and C. moreletii populations. Objetive: To evaluate genetic diversity and some phylogenetic relationships in wild and captive populations of C. acutus and C.
Alejandro Villegas   +2 more
openaire   +3 more sources

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1406-1462, June 2026.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz   +6 more
wiley   +1 more source

FIG. 3. — Crocodylidae indet. 1 in Crocodile remains from the Burdigalian (lower Miocene) of Gebel Zelten (Libya)

open access: yes, 2004
FIG. 3. — Crocodylidae indet. 1 (MNHN.LBE.311), skull table in dorsal view. Abbreviations: boc, basioccipital condyle; exoc, exoccipital; f, frontal; p, parietal; po, postorbital; pop, paraoccipital process; q, quadrate; soc, supraoccipital; sq ...
Agrasar, Eduardo Llinás
core   +1 more source

Crocodylidae in the Victoria Nile

open access: yes, 1971
Crocodile (Crocodylidae) in the Victoria Nile in Uganda ...
Johnson, W. Carter
core   +1 more source

Oswaldofilaria chabaudi n. sp. (Nematoda: Onchocercidae) from a South American tropidurid lizard (Squamata: Iguania) with an update on Oswaldofilariinae

open access: yesParasite, 2010
A new species of Oswaldofilaria is described from Tropidurus torquatus (Tropiduridae: Iguania); its prevalence at the rocky study area at Juiz de Fora, Minas Gerais, Brazil, was approximately 30% and its mean intensity 3.13 ± 2.51.
Pereira F.B., Souza Lima S., Bain O.
doaj   +1 more source

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