Results 61 to 70 of about 69,448 (243)

Tooth histotype and enameloid microstructure of Priohybodus arambourgi d'Erasmo, 1960 (Elasmobranchii: Hybodontiformes) from the Late Jurassic of northeastern Brazil

The Anatomical Record, EarlyView.
Abstract Sharks possess varied diets and different prey capture mechanisms. As a result, the group exhibits a significant diversity in dental morphology, also reflecting the internal structures of the teeth. Internal dental anatomy points to the existence of three histotypes in elasmobranch phylogeny: orthodont, osteodont, and pseudoosteodont ...
Kelly Roberta da Silva, Valéria Gallo, Estevan Eltink   +2 more
wiley   +1 more source

Fecal DNA metabarcoding reveals how sexual dimorphism and bite force influence seasonal changes in diets of diamondback terrapins (Malaclemys terrapin littoralis)

Frontiers in Amphibian and Reptile Science
Diamondback terrapins (DBTs, Malaclemys terrapin) exhibit pronounced sexual dimorphism, yet the functional consequences of this morphology for trophic ecology remain poorly resolved.
Mark Merchant, Sarah Baker, Zhuang Li
doaj   +1 more source

First report of gastroenteritis caused by citrobacter braakii in a yellow-margined box turtle (cuora flavomarginata) [PDF]

Kafkas Universitesi Veteriner Fakültesi Dergisi
To determine the pathogen responsible for gastroenteritis mortality in a yellow-margined box turtle (Cuora flavomarginata). A dominant single colony, A1, was isolated from the liver lesions of the diseased C. flavomarginata on the farm. Based on 16S rDNA
Min CHEN, Yifan SONG, Chongfeng LIU, Ningning CHEN, Junzeng XUE   +4 more
doaj   +1 more source

First reports on the relationship between the eggshell and bone mineralization in Rhinoclemmys punctularia punctularia embryos

The Anatomical Record, EarlyView.
Abstract Composed of various minerals, the eggshell provides ideal conditions for embryonic development, and understanding its composition and structure is essential for clarifying its relationship with bone formation. This study characterized the structure and mineral profile of the Rhinoclemmys punctularia punctularia eggshell in relation to ...
Igor Mathias Trindade Lemos, Deise Cardoso de Lima, Antônio Basílio Guerreiro Júnior, Brenda Stefany dos Santos Braga, Antônio Messias Costa, Ana Cássia Sarmento Ferreira, Maria Auxiliadora Ferreira, Verônica Oliveira‐Bahia, Diva Anelie de Araújo Guimarães   +8 more
wiley   +1 more source

Osteohistological evidence for terrestrial adaptation and an extended growth period in mekosuchine crocodylians and its potential role in their extinction

The Anatomical Record, EarlyView.
Abstract The Australasian crocodylian fossil record is dominated by the extinct endemic clade Mekosuchinae, with known members spanning the Eocene‐to‐Holocene. This diverse clade exhibited high morphological disparity, from early members superficially similar to Crocodylus, to more terrestrial forms later in the clade's evolutionary history.
Devin K. Hoffman, Cecily S. C. Nicholl, Oliver Bradley, Sreya Magar, Marie Sofia Sebaratnam, Alexandra Houssaye, Ryan N. Felice, Adam M. Yates, Stephen F. Poropat, Philip D. Mannion   +9 more
wiley   +1 more source

The impact of the large B-cell lymphoma tumor microenvironment on efficacy of CD19-directed CAR-T immunotherapy

Frontiers in Immunology
Large B-cell lymphoma is an aggressive lymphoma subtype with poor outcomes in the relapsed and refractory setting. Despite considerable improvements in long-term survival with CD19 CAR-T immunotherapy, over half of patients do not achieve durable ...
Helen P. Cashman, Cameron J. Turtle, Cameron J. Turtle, Cameron J. Turtle   +3 more
doaj   +1 more source

[Audio Recording: Turtle Creek Chorale "Christmas Together"]

, 1996
Audio recording from the Turtle Creek Chorale (The Dallas Way) collection, an American men's chorus based in Dallas, Texas. The recording is of TCC's "Christmas Together" performance, consisting of a wide variety of Christmas songs and skits.
Turtle Creek Chorale
core  

Assessment of intraspecific skull variation in the Campanian baenid turtle Plesiobaena antiqua

The Anatomical Record, EarlyView.
Abstract Baenids are freshwater paracryptodiran turtles with a fossil record ranging from the Early Cretaceous to the Eocene. The baenid Plesiobaena antiqua is the most common turtle in the Campanian (Late Cretaceous) Dinosaur Park Formation in Canada, but the apparent intraspecific variation remains poorly understood.
Scott Bellotti, Donald D. Brinkman, Serjoscha W. Evers, Walter G. Joyce, Yann Rollot   +4 more
wiley   +1 more source

A Review of the Effects of Climate Change on Chelonians

Diversity, 2019
Climate change is occurring at an unprecedented rate and has begun to modify the distribution and phenology of organisms worldwide. Chelonians are expected to be particularly vulnerable due to limited dispersal capabilities as well as widespread ...
Christopher J. Butler
doaj   +1 more source

First evidence of a mandibular crest in Brasileodactylus Kellner, 1984 (Pterosauria, Pteranodontoidea, Anhangueridae), with comments on pterosaur headcrests

The Anatomical Record, EarlyView.
Abstract Brasileodactylus araripensis Kellner, 1984, is a toothed pterosaur from the Lower Cretaceous Romualdo Formation of the Araripe Basin, Brazil. Traditionally regarded as crestless, the species has been central to debates on anhanguerid taxonomy, as most members of the clade possess well‐developed sagittal cranial or dentary crests.
Anderson da Silva Nascimento, Rubi Vargas Pêgas, Alessandra Silveira Machado, Ricardo Tadeu Lopes, Fabiana Rodrigues Costa   +4 more
wiley   +1 more source