Results 131 to 140 of about 99,859 (391)

A New Species of Neoglyptatelus (Mammalia, Xenarthra, Cingulata) from the Late Miocene of Uruguay Provides New Insights on the Evolution of the Dorsal Armor in Cingulates [PDF]

, 2018
The genus Neoglyptatelus Carlini, Vizcaíno and Scillato-Yané has been considered a member of Glyptatelinae, a group encompassing the purportedly basal-most glyptodonts.
Fernicola, Juan Carlos, Jones, Washington, Porpino, Kleberson de Oliveira, Rinderknecht, Andrés, Vizcaíno, Sergio Fabián   +4 more
core   +2 more sources

Digitization workflows for paleontology collections

, 2016
The development of digitization workflows is an essential part of any formalized large-scale digitization program. Paleontological collections literature has addressed the need for, and utility of, digitized collections for nearly four decades, but no ...
T. Karim, R. Burkhalter, Una C. Farrell, A. Molineux, Gil Nelson, Jessica Utrup, Susan H. Butts   +6 more
semanticscholar   +1 more source

The lower jaw of Devonian ray‐finned fishes (Actinopterygii): Anatomy, relationships, and functional morphology

The Anatomical Record, EarlyView.
Abstract Actinopterygii is a major extant vertebrate group, but limited data are available for its earliest members. Here we investigate the morphology of Devonian actinopterygians, focusing on the lower jaw. We use X‐ray computed tomography (XCT) to provide comprehensive descriptions of the mandibles of 19 species, which span the whole of the Devonian
Ben Igielman, Rodrigo Tinoco Figueroa, Robert R. Higgins, Stephanie E. Pierce, Michael I. Coates, Emily M. Troyer, Vincent Fernandez, Kathleen Dollman, Jing Lu, Min Zhu, Matt Friedman, Sam Giles   +11 more
wiley   +1 more source

Mitochondrial phylogenomics supports a Carboniferous origin of Xenonomia

The European Zoological Journal
Polyneoptera includes some of the best-known insect species, such as grasshoppers and cockroaches. While the evolutionary history of many Polyneoptera orders has been thoroughly explored, others have been partially overlooked.
N. Righetti, G. Forni, A. Luchetti
doaj   +1 more source

Functional craniology and brain evolution: from paleontology to biomedicine

Frontiers in Neuroanatomy, 2014
Anatomical systems are organized through a network of structural and functional relationships among their elements. This network of relationships is the result of evolution, it represents the actual target of selection, and it generates the set of rules ...
E. Bruner, José Manuel de la Cuétara, Michael P Masters, Hideki Amano, N. Ogihara   +4 more
semanticscholar   +1 more source

Commentary: What's so interesting about sabertooths?

The Anatomical Record, EarlyView.
Abstract Sabertooth creatures are fascinating to the public and to scientists. This Special Issue on The Anatomy of Sabertooths starts with a discussion of what exactly a sabertooth is, continues with a couple of papers about other animals with extraordinarily long teeth, and then delves into analyses of fossil sabertoothed taxa—some of which are not ...
Adam Hartstone‐Rose, Tahlia I. Pollock, Lars Werdelin   +2 more
wiley   +1 more source

Evidence of strong stabilizing effects on the evolution of boreoeutherian (Mammalia) dental proportions. [PDF]

, 2019
The dentition is an extremely important organ in mammals with variation in timing and sequence of eruption, crown morphology, and tooth size enabling a range of behavioral, dietary, and functional adaptations across the class.
Archibald J. D., Archibald J. D., Bergqvist L. P., Butler P. M., Chaffee R. G., Clark J., Clemens W. A., Cuvier G., Evans A. R., Fortelius M., Gingerich P. D., Harmon L., Janis C. M., Janis C. M., Kay R. F., Kurtén B., Lucas P. W., Lucas P. W., Monson T. A., Nowak R. N., Orme D., Qiu Z. X., R Core Team, Revelle W., Tomiya S., Ungar P. S., Ungar P. S.   +26 more
core   +5 more sources

Histovariability and fossil diagenesis of Pissarrachampsa (Pseudosuchia, Notosuchia, Baurusuchidae) from the Upper Cretaceous of Southeast Brazil

The Anatomical Record, EarlyView.
Abstract Notosuchians were key components of western Gondwanan Cretaceous ecosystems in terrestrial predator niches and exhibited remarkable taxonomic and ecological diversity. Previous research has explored their physiology, metabolism, and histology, revealing varied growth patterns and life history strategies.
Tito Aureliano, Virgínia Maciel, Pedro Victor Buck, Felipe C. Montefeltro, Thiago da S. Marinho, Aline M. Ghilardi   +5 more
wiley   +1 more source

Structural Color in Amber-Entombed Wasp: A Detailed Study Using NS-FDTD Simulations

IEEE Access
The multilayer reflectors of insect epidermis can produce unique structural color through interactions with light. Many fossilized insects, like amber-entombed wasps, present structural colors. However, how this multilayer structure and structural colors
Zhuo Hou, Dongsheng Cai, Ran Dong
doaj   +1 more source

Aragonite crystals grown on bones by reaction of CO2 with nanostructured Ca(OH)2 in the presence of collagen. Implications in archaeology and paleontology.

Langmuir, 2014
The loss of mechanical properties affecting archeological or paleontological bones is often caused by demineralization processes that are similar to those driving the mechanisms leading to osteoporosis.
I. Natali, Paolo Tempesti, E. Carretti, M. Potenza, S. Sansoni, P. Baglioni, L. Dei   +6 more
semanticscholar   +1 more source