Results 41 to 50 of about 872 (208)

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

open access: yesThe 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   +4 more
wiley   +1 more source

Hominin footprints at Laetoli reveal a walk on the wild side

open access: yes, 2021
Bipedalism is a defining feature of the human lineage, but not all hominin species walked in the same way. New data from a famous palaeoanthropology site reveal that at least two differently bipedal hominins roamed eastern ...
Melillo, S. ; https://orcid.org/
core   +1 more source

Fossil ruminants from the Pliocene site of Jradzor, Armenia [PDF]

open access: yesSwiss Journal of Palaeontology
Seven ruminant taxa have been identified at the Pliocene Jradzor site in Armenia: Bovini indet., Gazellospira sp., Antilopini indet., Caprinae indet. 1 (cf. Eosyncerus), Caprinae ndet. 2, Caprini indet., and Cervinae indet.
Maia Bukhsianidze
doaj   +3 more sources

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

open access: yesThe Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano   +3 more
wiley   +1 more source

Radular force performance of stylommatophoran gastropods (Mollusca) with distinct body masses

open access: yesScientific Reports, 2021
The forces exerted by the animal’s food processing structures can be important parameters when studying trophic specializations to specific food spectra.
Wencke Krings   +4 more
doaj   +1 more source

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

open access: yesThe 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   +7 more
wiley   +1 more source

Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea

open access: yesThe 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   +4 more
wiley   +1 more source

Bridging disciplines to better elucidate the evolution of early Homo sapiens in southern Africa

open access: yesSouth African Journal of Science, 2013
Elucidating the history of Homo sapiens has been a passion shared by many researchers spanning several decades. There are now overwhelming lines of evidence from genetic, archaeological, palaeoanthropological and, to some extent, palaeoenvironmental ...
Marlize Lombard   +2 more
doaj   +1 more source

Nasal soft‐tissue anatomy of Triceratops and other horned dinosaurs

open access: yesThe 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   +5 more
wiley   +1 more source

The Melancholy of the «Redskin». Aesthetics and moral in French anthropology in the second half of the 19th century

open access: yesAisthesis, 2022
Based on the theoretical and methodological indications provided by the Geneva critic and historian Jean Starobinski in his analysis of melancholic figures in the 19th century, this study focuses on the presence of the figure of the «Redskin» or «Savage»
Aldo Trucchio
doaj   +1 more source

Home - About - Disclaimer - Privacy