Results 151 to 160 of about 1,985,869 (355)

New craniodental materials of Falcarius utahensis (Theropoda: Therizinosauria) reveal patterns of intraspecific variation and cranial evolution in early coelurosaurians

open access: yesThe Anatomical Record, EarlyView.
Abstract Despite documented ecomorphological shifts toward an herbivorous diet in several coelurosaurian lineages, the evolutionary tempo and mode of these changes remain poorly understood, hampered by sparse cranial materials for early representatives of major clades. This is particularly true for Therizinosauria, with representative crania best known
William J. Freimuth, Lindsay E. Zanno
wiley   +1 more source

New techniques for old bones: Morphometric and diffeomorphometric analysis of the bony labyrinth of the Reilingen and Ehringsdorf Neandertals

open access: yesThe Anatomical Record, EarlyView.
Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli   +6 more
wiley   +1 more source

Planetary Geologic Mapping [PDF]

open access: yesBulletin of the AAS, 2021
Peter Mouginis-Mark   +10 more
openaire   +1 more source

Digital geological mapping of UK Quaternary deposits using the BGS SIGMA system [PDF]

open access: yes, 2013
Technological advances in surveying, cartography and GIS have changed the face of geological mapping at the British Geological Survey. In the space of ten years the process has developed from a largely paper-based system to a system which is entirely ...
Hughes, Leanne
core  

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

Case studies on the geological application of LANDSAT imagery in Brazil [PDF]

open access: yes
The author has identified the following significant results. Sao Domingos Range, Pocos de Caldas, and Araguaia and Tocantins Rivers in Brazil were selected as test sites for LANDSAT imagery.
Correa, A. C.   +2 more
core   +1 more source

Endothermy, neuron counts, and other issues: Further remarks on neurocognitive evolution in fossil vertebrates

open access: yesThe Anatomical Record, EarlyView.
Abstract Last year, we challenged the view that large‐bodied theropod dinosaurs such as Tyrannosaurus rex resembled primates in cognition and behavior, a proposition made by Herculano‐Houzel in 2023. More recently, Jensen et al. have criticized our work on this topic, raising methodological and conceptual issues.
Kai R. Caspar   +5 more
wiley   +1 more source

A task-oriented framework for efficient lithological mapping of imbalanced categories using hyperspectral imagery

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
Hyperspectral lithological mapping is a critical task in geological surveys and mineral resource exploration. However, the distribution of geological units is typically imbalanced and heterogeneous, with practical tasks requiring high-efficiency mapping ...
Yuanchao Wang   +4 more
doaj   +1 more source

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

open access: yesThe 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   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy