Results 21 to 30 of about 217 (117)
Anatomically grounded estimation of hindlimb muscle sizes in Archosauria. [PDF]
J Anat, 2023 Digitised muscle attachment areas from the hindlimbs of Nile crocodiles, tinamous and four other birds were used to estimate muscle physiological cross‐sectional areas. Some significant relationships were found, so it was deemed justifiable to estimate these areas in the theropod dinosaur Coelophysis, obtaining some different values from other studies'.
Cuff AR +5 more
europepmc +2 more sources
The comparative energetics of the turtles and crocodiles. [PDF]
Ecol Evol, 2022 This paper discusses patterns in Dynamic Energy Budget parameters and implied traits that we found for turtles and crocodiles. We explain, for instance, why the proportionality of weight at birth with the square root of ultimate weight points to problems with water loss and nitrogen‐waste accumulation.
Marn N, Kooijman SALM.
europepmc +2 more sources
Size, not phylogeny, explains the morphology of the endosseous labyrinth in the crown clade Crocodylia. [PDF]
J AnatHere, we present the most complete dataset to date on the endosseous labyrinths of extant crocodylians. Using 3D geometric morphometrics, we show that allometry constitutes a major contributor of the shape variation of the crocodylian endosseous labyrinths and that the development of this structure is likely linked to the braincase conformation, in all
Pochat-Cottilloux Y +9 more
europepmc +2 more sources
Roars, Rumbles, and Resonance: A Systematic Review and Meta-Analysis of Crocodylian Acoustic Signals. [PDF]
Ecol EvolCrocodylians are highly vocal reptiles, possessing a complex acoustic signalling system including vocal and non‐vocal signals used for courtship, mating, mediating conflict, and providing maternal care. Despite this, research on crocodylian acoustic signalling remains infrequent, with methodologies and terminology varying widely across studies.
Flores SA +3 more
europepmc +2 more sources
Clustering crocodylian dental morphology: Insights into functional adaptations, diet, and ontogeny. [PDF]
J AnatExtant crocodylians may be divided into five clusters based on the residuals of four linear dental measurements (y‐axes) and their variation along the jaw (x‐axes). These clusters correlate to snout shape, prey preference, and feeding ecology, particularly prey size and the degree of processing necessary. Multiple families and subfamilies were found in
Testin JJ, D'Amore DC.
europepmc +2 more sources
Neuroanatomy of the mekosuchine crocodylian Trilophosuchus rackhami Willis, 1993. [PDF]
J Anat, 2022 This study described the neuroanatomy of the mekosuchine crocodylian Trilophosuchus rackhami from the Middle Miocene of Australia. Although the neuromorphology of Trilophosuchus rackhami follows the general patterns seen in crocodylomorphs, it is nevertheless characterized by a unique combination of features that stand out among currently known taxa ...
Ristevski J.
europepmc +2 more sources
The velar chord and dynamic integration of the gular valve in crocodylians. [PDF]
Anat Rec (Hoboken)Crocodilians have a unique gular valve that forms a seal between the oral cavity and the pharynx. The gular valve has traditionally been treated as two parts: a mobile ventral flap associated with the tongue and a fixed dorsal velum palatini. This work describes a connective tissue band, the velar chord, which functionally integrates the two parts of ...
Young BA, Cramberg M, Young OG.
europepmc +2 more sources
Septal deviation in the nose of the longest faced crocodylian: A description of nasal anatomy and airflow in the Indian gharial (Gavialis gangeticus) with comments on acoustics. [PDF]
Anat Rec (Hoboken), 2022 Abstract The remarkably thin rostrum in the Indian gharial (Gavialis gangeticus) imparts challenges to nasal physiology. Competition for space in the slim jaws necessitates a thin nasal septum, leaving this taxon susceptible to nasal passage abnormalities such as septal deviation.
Bourke JM, Fontenot N, Holliday C.
europepmc +2 more sources
Caldasia, 1958 1. The present paper includes studies about the Cranial Anatomy, Geographical Distribution and Ecology of Crocodylus intermedius in Colombia. 2. The material has been collected from the areas of the rivers Guaviare, Ariari, Güéjar and Cunimía.
Medem Fred
doaj +1 more source
Using functional traits to identify conservation priorities for the world's crocodylians
Functional Ecology, Volume 37, Issue 1, Page 112-124, January 2023., 2023 Read the free Plain Language Summary for this article on the Journal blog. Abstract Over half of all crocodylians are threatened with extinction, with many species considered to be functionally extinct throughout their historical ranges. How such losses impact crocodylian functional diversity (FD) and its conservation is poorly understood, but can be ...
Phoebe Griffith +3 more
wiley +1 more source