Results 161 to 170 of about 12,589 (253)

A new sauropod dinosaur hindlimb from the Lower Cretaceous Wessex Formation, Isle of Wight, UK. [PDF]

R Soc Open Sci
Higgins RR, Mannion PD, Barrett PM, Upchurch P.   +3 more
europepmc   +1 more source

A new basal ornithopod dinosaur from the Lower Cretaceous of China. [PDF]

PeerJ, 2020
Yang Y, Wu W, Dieudonné PE, Godefroit P.   +3 more
europepmc   +1 more source

Managed Aquifer Recharge Operations and Design under Hydrologic Uncertainty

Groundwater, EarlyView.
Integrated hydrologic modeling uses dual ensembles of MAR operations and IES‐derived parameters to evaluate mounding, inundation, and transport risks under climate extremes. Exceedance‐probability metrics quantify environmental risks across the MAR impact zone, showing drain‐controlled mound limits, recovery effects, and pathways to interdunal and ...
Wolfgang Schmid, Adrian Dela Cruz, Adam Siade, Michael Donn, Olga Barron   +4 more
wiley   +1 more source

A new diminutive species of bohaiornithid enantiornithine (Aves: Ornithothoraces) from the Lower Cretaceous Jehol Group, northern China. [PDF]

Sci Rep
Shen C, Clark AD, Fang H, Chen S, Jiang H, Ji Q, O'Connor JK.   +6 more
europepmc   +1 more source

Computed tomography reveals multiple origins of extreme caudal vertebral pneumaticity in sauropod dinosaurs

Journal of Anatomy, EarlyView.
Here, we present novel CT scan data of caudal vertebrae of six Middle–Late Jurassic sauropods, representing several eusauropod lineages. We synthesise these new data with a comprehensive critical appraisal of purported external and internal evidence for caudal vertebral PSP in Sauropodomorpha.
Samantha L. Beeston, Daniela Schwarz, Paul Upchurch, Stephen F. Poropat, Patrick Asbach, Philip D. Mannion   +5 more
wiley   +1 more source

A new gnetalean macrofossil from the Lower Cretaceous of the Laiyang Basin, eastern China. [PDF]

Plant Divers
Jin P, Zhang M, Du B, Zhang J, Sun B.
europepmc   +1 more source

Computed tomography reveals the endocranial anatomy of Crocodylia: Implications for phylogenetic relationships and ecomorphological convergence across Crocodylomorpha

Journal of Anatomy, EarlyView.
The evaluation of the endocranial anatomy of 43 crocodylian species reveals several differences, including variation in the curvature of the encephalic endocast, the size of the endosseous labyrinth and paratympanic sinuses, and the presence of additional snout sinuses.
Paul M. J. Burke, Philip D. Mannion
wiley   +1 more source

<i>Psittacosaurus houi</i>, a longer snouted psittacosaurid from the Lower Cretaceous Lujiatun Unit of Yixian Formation, China, with the synonymy of the unresolved genus <i>Hongshanosaurus</i> revisited. [PDF]

PeerJ
Ishikawa A, Zheng W, Imai T, Hattori S, Shibata M, Kawabe S, Jin X.   +6 more
europepmc   +1 more source

Relationship between carina size and sternum morphology in birds reflects physical constraints of body size and flight style

Journal of Anatomy, EarlyView.
Sternum morphology varies among birds and is a function of body mass and order. The area of the sternum is inversely related to the area of the keel suggesting that the increase in bone mass associated with a large keel has been mitigated by a reduction in bone mass of the sternum.
D. C. Deeming
wiley   +1 more source

A description of dental microanatomy and implantation geometry in Chamaeleonidae

Journal of Anatomy, EarlyView.
A reassessment of the dental histology in adult chamaeleons reveals the presence of periodontal ligament. Alongside alveolar bone and cementum, these tissues together constitute a compacted and remodelled tripartite periodontium. Our findings include the novel observation of plicidentine‐like protuberances of dentine within underlying bone.
Giles D. Sukkert, Ilaria Paparella, Michael R. Doschak, Aaron R. H. LeBlanc, Michael W. Caldwell   +4 more
wiley   +1 more source