Results 71 to 80 of about 5,570 (219)

Reptiles of the Parque Estadual de Itapuã, state of Rio Grande do Sul, southern Brazil [PDF]

Check List, 2012
Herein we provide a list of reptiles from Parque Estadual de Itapuã, a conservation unit of integral protection located in the municipality of Viamão, state of Rio Grande do Sul, southern Brazil and inserted in the domains of the Pampa Biome.
Gilberto Filho, Laura Verrastro
doaj   +3 more sources

Effects of Incubation and Rearing Temperatures on Caiman latirostris Growth [PDF]

, 2010
Different studies found that incubation temperature has an influence on the size of Caiman latirostris hatchlings and determines their gonadal sex. Experimental manipulations revealed that the effects of temperature on growth are independent of sex ...
Larriera, Alejandro, Parachu Marco, Maria Virginia, Piña, Carlos Ignacio, Simoncini, Melina Soledad   +3 more
core  

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

The Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt, Orlando Nelson Grillo, Christophe Hendrickx, Maximilian Kellermann, Max Cardoso Langer   +4 more
wiley   +1 more source

Evolutionary relationships and systematics of Atoposauridae (Crocodylomorpha: Neosuchia): implications for the rise of Eusuchia [PDF]

, 2016
Atoposaurids are a group of small-bodied, extinct crocodyliforms, regarded as an important component of Jurassic and Cretaceous Laurasian semi-aquatic ecosystems.
Mannion, PD, Tennant, JP, Upchurch, P
core   +3 more sources

Re‐evaluation of a soft crested Edmontosaurin, with implications for hadrosaurid life appearance and diversity

The Anatomical Record, EarlyView.
Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Henry S. Sharpe, Phil R. Bell, Ian Baylatry, Robin Sissons, Corwin Sullivan   +4 more
wiley   +1 more source

Behaviours of farmed saltwater crocodiles (Crocodylus porosus) housed individually or in groups

Frontiers in Veterinary Science
Saltwater crocodiles (Crocodylus porosus) are farmed in Australia primarily for their skins and meat. Commercially, they are raised in group pens as hatchlings and grower crocodiles and then moved to unitised (individual) pens for the final finishing ...
Dana L. M. Campbell, Leisha Hewitt, Caroline Lee, Charlotte A. Timmerhues, Alison H. Small   +4 more
doaj   +1 more source

Field and experimental evidence of a new caiman trypanosome species closely phylogenetically related to fish trypanosomes and transmitted by leeches

International Journal for Parasitology: Parasites and Wildlife, 2015
Trypanosoma terena and Trypanosoma ralphi are known species of the South American crocodilians Caiman crocodilus, Caiman yacare and Melanosuchus niger and are phylogenetically related to the tsetse-transmitted Trypanosoma grayi of the African Crocodylus ...
Bruno R. Fermino, Fernando Paiva, Priscilla Soares, Luiz Eduardo R. Tavares, Laerte B. Viola, Robson C. Ferreira, Robinson Botero-Arias, Cátia D. de-Paula, Marta Campaner, Carmen S.A. Takata, Marta M.G. Teixeira, Erney P. Camargo   +11 more
doaj   +1 more source

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

The 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, Marina Bento Soares, Luiz Carlos Weinschütz, Alexander Wilhelm Armin Kellner   +3 more
wiley   +1 more source

A transitional desmosome/tonofibril network may relay mechanical strain to epidermal nerve terminals with high fidelity and sensitivity in the Cuban crocodile (Crocodylus rhombifer): an ultrastructural study

Frontiers in Cell and Developmental Biology
BackgroundCrocodilians are well endowed with multiple cutaneous receptors and specializations, such as integumentary sensory organs (ISOs), which provide formidable mechanical sensitivity despite their protected shield.
Karl-Gunnar Melkersson, Monika Hodik, Karin Staxäng, Pierre Hakizimana, Hao Li, Helge Rask-Andersen   +5 more
doaj   +1 more source

Crocodilians in Perspective! [PDF]

American Zoologist, 1989
The prediction of the 1960s that crocodilians would soon be extinct has happily proven to be unduly pessimistic. The survival and recovery of substantial stocks provides us with the unexpected opportunity to learn about their adaptations, important not only because of their place as relicts of a major reptilian radiation, but also as giant animals ...
openaire   +1 more source