Results 171 to 180 of about 470,342 (302)

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

Anthropic pressure and causes of death of stranded Chelonia mydas along the northern coast of Bahia - Brazil. [PDF]

PLoS One
Silva DN, Catão-Dias JL, Perinotto WMS, Pires T, Macedo GR, Costa PCDS, Oliveira LF, Leal PV, Estrela-Lima A.   +8 more
europepmc   +1 more source

Gonadal development in scorpion mud‐turtles, Kinosternon scorpioides, in a controlled environment

The Anatomical Record, EarlyView.
Stage 20 was identified as the critical point for gonadal differentiation in Kinosternon scorpioides, providing key insights into sex determination. These findings enhance conservation strategies by supporting reproductive management and population viability in both in situ and ex situ programs. Abstract Research on gonadal development including sexual
Brenda Braga, Verônica Oliveira‐Bahia, Maria Auxiliadora Ferreira, José Ribamar Felipe Marques, Diva Araújo Guimarães   +4 more
wiley   +1 more source

Prevalence of <i>Borrelia afzelii</i> and <i>Borrelia garinii</i> Genospecies in <i>Ixodes ricinus</i> Ticks Collected from Three Regions in Bulgaria. [PDF]

Pathogens
Stanilov I, Blazhev A, Chakarova B, Stanilova S.   +3 more
europepmc   +1 more source

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

The Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro, Marco Aurélio Gallo de França   +1 more
wiley   +1 more source

Stress and resilience in northern European marine ecosystems. [PDF]

Proc Natl Acad Sci U S A
Llope M, Blenckner T, Vasilakopoulos P, McGinty N, Lynam CP, Hélaouët P, Möllmann C, Frelat R, Durant JM, Stige LC, Stenseth NC.   +10 more
europepmc   +1 more source

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

On the interaction between the nonlinear internal waves and the Pearl River plume. [PDF]

Sci Rep
Li WT, Fu KH, Lee IH, Lee J, Chen JM, Liu JT, Chen CA.   +6 more
europepmc   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

The Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo, Ricardo Araújo, Bruce S. Rubidge, Michael O. Day, Kathleen N. Dollman, Julien Benoit   +5 more
wiley   +1 more source

Earliest millet cultivation reflects steppe connections, dietary flexibility, and resilience in Bronze Age northern Greece. [PDF]

PLoS One
Karanikola K, Valamoti SM, Motuzaite Matuzeviciute G.   +2 more
europepmc   +1 more source