Results 161 to 170 of about 2,667,394 (309)

The skeleton of the green Iguana iguana (Squamata: Iguanidae) and its intraspecific morphological variation

The Anatomical Record, EarlyView.
Abstract The green iguana (Iguana iguana) is an iguanine lizard with herbivorous and arboreal habits, whose distribution spans through South America, Central America to the south of North America. Although the genus Iguana is well‐known, the species still lacks a comprehensive and up‐to‐date anatomical study, particularly addressing the axial skeleton,
Vieno Rosa, Marcos Vinícius Coelho, Camila Cupello   +2 more
wiley   +1 more source

Dental crown morphological variation and heterodonty in carcharhiniform sharks

The Anatomical Record, EarlyView.
Abstract Elasmobranch teeth are highly mineralized structures that constitute the majority of the fossil record for this group. Despite their taxonomic and evolutionary significance, detailed descriptions of dental morphology remain scarce. The order Carcharhiniformes, the most diverse among sharks, comprises 304 valid species that display remarkable ...
Flávia Zanini, Karla D. A. Soares
wiley   +1 more source

Cranial anatomy of a Late Cretaceous aspidorhynchid fish (Neopterygii: Aspidorhynchiformes) from Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Belonostomus longirostrisis was named for an isolated jaw fragment from freshwater Upper Cretaceous (Campanian) sediments of the Dinosaur Park Formation of Alberta, Canada. Following the description of the Albertan species, numerous isolated cranial and postcranial elements have been collected from the Dinosaur Park Formation and assigned to B.
Mondo Miyazato, Luke E. Nelson, Joshua A. Doyon, Donald B. Brinkman, Alison M. Murray   +4 more
wiley   +1 more source

Mexico [PDF]

Intereconomics, 1974
openaire   +2 more sources

Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea

The Anatomical Record, EarlyView.
Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Evan Johnson‐Ransom, Paul Gignac, Daniel E. Barta, Ryan N. Felice, Eric Snively   +4 more
wiley   +1 more source

Over the edge: Empirical evidence for the cliff‐edge model of obstetric selection

The Anatomical Record, EarlyView.
Abstract The cliff‐edge model of obstetric selection maintains that larger neonates and smaller birth canals confer a positive selective advantage until labor becomes obstructed and vaginal delivery is no longer possible, eliciting an abrupt reduction in fitness.
Laura M. Watson, Pierre Frémondière, Kaspar Staub, Philipp Mitteroecker, Barbara Fischer, Martin Haeusler, Nicole M. Webb   +6 more
wiley   +1 more source

Correction: Emergence of a novel reassorted high pathogenicity avian influenza A(H5N2) virus associated with severe pneumonia in a young adult. [PDF]

Sci Rep
Vázquez-Pérez JA, Becerril-Vargas E, Ramírez-González JE, Solís-Hernández M, Davis CT, Garciadiego-Fossas P, Villanueva-Reza M, Chávez-Morales HH, Mendoza-Ramírez E, Olivares-Flores CD, Vera-Jiménez AC, Rumbo-Nava U, Guadarrama-Pérez C, Recinos-Carrera EG, Zúñiga J, López-Martínez I, Hernández-Rivas L, Barrera-Badillo G, Colin-Soto N, Flores-Cisneros L, Carbajal-Sandoval G, Vidal-Aguirre D, Arellano-Suarez DS, Aparicio-Antonio R, López-Elizalde R, Alcazar-Ramiro CJ, García-López A, Di H, Kirby M, Jang Y, Lezana-Fernández MA, Hernández-Cárdenas CM.   +31 more
europepmc   +1 more source

Widespread distribution of large silesaurids evidenced by a new record from the Middle Triassic of southwest Gondwana

The 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

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

The 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, Rodrigo Temp Müller, Leonardo Kerber, Mirian Carbonera   +3 more
wiley   +1 more source

Molecular alterations in the GATA-2, RUNX1, C/EBPα and hTERT genes in patients with aplastic anemia by MLPA. [PDF]

Genet Mol Biol
Salas IM, Carrillo IO, Maldonado RC, Laguna AIG, Rosas AC, Peñafiel COR, Figueroa EHM, Rocha DLC, Murillo CM, Barroso VFM, Tovar AM.   +10 more
europepmc   +1 more source