Results 191 to 200 of about 563,029 (306)

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

Amphibian Intestine Allometry. [PDF]

J Morphol
Duque-Correa MJ, Meloro C, Keller S, Cigler P, Wethli I, Niehaus J, Przybyło M, Clauss M.   +7 more
europepmc   +1 more source

Vertebrate zoölogy

, 1920
openaire   +3 more sources

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

The Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto, João Felipe Leal Kaiuca, Adriana Itatí Olivares, William Corrêa Tavares   +3 more
wiley   +1 more source

Exploring the Sex-Differentiated Transcription of GnRH1/GnRHR1 Signaling in Hamster. [PDF]

Life (Basel)
Ruiz A, Ramos L.
europepmc   +1 more source

Multi‐method analysis for the three‐dimensional reconstruction of muscle fascicles from DiceCT datasets

The Anatomical Record, EarlyView.
Abstract Muscle architecture is a major determinant of muscle performance and, in mammalian lineages, has been correlated with both feeding ecology and locomotor behaviors. Over the past decade, contrast‐enhanced micro‐CT (DiceCT) has emerged as an alternative to traditional dissection‐based measurement.
Aleksandra Ratkiewicz, Michael C. Granatosky, Cassidy E. Davis, Julia Molnar, Adam Hartstone‐Rose, Edwin Dickinson   +5 more
wiley   +1 more source

Experimental evidence for embryo retention in the high-elevation Chilean lizard Liolaemus leopardinus (Squamata: Liolaemidae)

Phyllomedusa: Journal of Herpetology, 2017
Enrique Santoyo-Brito, Stanley F. Fox, Herman Núñez   +2 more
doaj  

<i>ATG</i> gene duplication in vertebrates: evolutionary divergence and its functional implications. [PDF]

Autophagy
Zhang S, Koyama-Honda I, Hiratsuka D, Mizushima N.   +3 more
europepmc   +1 more source

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

The Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

Vertebrate-wide transcriptomic screening identifies immune cell-specific expression of the conserved OR-κ gene. [PDF]

Zoological Lett
Nishiura K, Nagasawa T, Nikaido M.
europepmc   +1 more source