Results 151 to 160 of about 465,436 (305)

Groundwater in Geologic Processes [PDF]

Geofluids, 2009
openaire   +1 more source

An osteohistological analysis of Triceratops (Ornithischia: Ceratopsidae) cranial ornamentation

The Anatomical Record, EarlyView.
Abstract Ceratopsids are among the most distinctive and well known extinct Cretaceous vertebrates, yet many details regarding the growth and composition of their cranial features are still not fully anatomically described or understood. In particular, striking cranial adornments such as the postorbital horns and parietal‐squamosal frill of Triceratops ...
Kyle D. Obuszewski, N. Adam Smith, Guinevere Rose Brown   +2 more
wiley   +1 more source

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

The Anatomical Record, EarlyView.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro, Jeffrey A. Wilson Mantilla, Jhonata H. A. Martins, Fabiano V. Iori, Leonardo S. Paschoa, Alberto B. Carvalho, Joseli M. Piranha, Hussam Zaher   +7 more
wiley   +1 more source

Implications for Geological Processes and Climate Conditions [PDF]

, 2013
Ansan, V., Baratoux, D., Di Achille, G., Duxbury, T., Erkeling, G., Foing, B., Fueten, F., Gupta, S., Gwinner, K., Hauber, Ernst, Head, J. W., Hiesinger, H., Hoffmann, H., Ip, W., Jaumann, Ralf, Keller, H., Kleinhans, Maarten G., Kneissl, Thomas, Le Deit, L., Mangold, N., McCord, T. B., Michael, G., Muller, J., Murray, J., Neukum, Gerhard, Pacifi, A., Pinet, P., Platz, Thomas, Pondrelli, M., Raack, J., Reiss, D., Roatsch, T., Rossi, A. P., Scholten, F., Sowe, M., Spohn, T., Stephan, K., Tirsch, D., van Gasselt, Stephan, Wendt, L., Williams, D. A.   +40 more
core   +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

Oxygen Isotope Fractionation between Carbonate Minerals and Carbonic Acid Systems and Constraints for Environmental Science and Geological Processes. [PDF]

Molecules
Zhang J.
europepmc   +1 more source

Osteohistology of two phorusrhacids reveals uninterrupted growth strategy

The Anatomical Record, EarlyView.
Abstract Phorusrhacidae were apex predators that primarily dominated South America ecosystems for at least 40 million years with their imposing size and predatory lifestyle—yet some aspects of their biology remain poorly understood. Osteohistology is a tool for understanding growth dynamics and biomechanical adaptations.
Lotta Dreyer, Christian Cooper, Jingmai O'Connor   +2 more
wiley   +1 more source

Nasal soft‐tissue anatomy of Triceratops and other horned dinosaurs

The Anatomical Record, EarlyView.
Abstract Although ceratopsid dinosaurs possess a characteristically hypertrophied narial region, soft‐tissue anatomy associated with such a skeletal structure and their biological significance remain poorly understood. The present study provides the first comprehensive hypothesis on the soft‐tissue anatomy in the ceratopsid rostrum based on the Extant ...
Seishiro Tada, Takanobu Tsuihiji, Hiroki Ishikawa, Noriyuki Wakimizu, Soichiro Kawabe, Kodai Sakane   +5 more
wiley   +1 more source

The influence of study area selection and landslide inventory practices on landslides spatial distribution: an example from Northern Morocco. [PDF]

Sci Rep
Bounab A, Sahrane R, El Kharim Y, Obda O, Mastere M, Obda I.   +5 more
europepmc   +1 more source

Magnetic structure of the crust [PDF]

The bibuniqueness aspect of geophysical interpretation must be constrained by geological insight to limit the range of theoretically possible models. An additional step in depth understanding of the relationship between rock magnetization and geological ...
Wasilewski, P.
core   +1 more source