Results 91 to 100 of about 99,859 (391)

Synapsids and sensitivity: Broad survey of tetrapod trigeminal canal morphology supports an evolutionary trend of increasing facial tactile specialization in the mammal lineage

open access: yesThe Anatomical Record, EarlyView.
Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae   +4 more
wiley   +1 more source

Prospalax priscus jaw from the site of Węże 2 (southern Poland, Pliocene)

open access: yesGeologija, 2023
The ecology and adaptations of the Anomalomyidae (Muroidea) have been long debated in the scientific literature. A jaw belonging to Prospalax priscus (Anomalomyidae) was found at the Late Pliocene site of Węże 2 in southern Poland.
Michał Czernielewski
doaj   +1 more source

Separating sexual dimorphism from other morphological variation in a specimen complex of fossil marine reptiles (Reptilia, Ichthyosauriformes, Chaohusaurus). [PDF]

open access: yes, 2018
The Early Triassic Chaohu Fauna from Anhui Province, China, contains the oldest record of Mesozoic marine reptiles, such as Cartorhynchus and Sclerocormus.
Hu, Yuan-Chao   +7 more
core   +2 more sources

Confronting Prior Conceptions in Paleontology Courses

open access: yes, 2018
People hold a variety of prior conceptions that impact their learning. Prior conceptions that include erroneous or incomplete understandings represent a significant barrier to durable learning, as they are often difficult to change.
M. Yacobucci
semanticscholar   +1 more source

Exposed weapons: A revised reconstruction of the facial anatomy and life appearance of the saber‐toothed cat Megantereon (Felidae, Machairodontinae)

open access: yesThe Anatomical Record, EarlyView.
Abstract Megantereon was a widespread saber‐toothed felid from the Pliocene and Pleistocene of the Old World and North America, but its rarity in the fossil record makes it complicated to restore its life appearance. Lack of complete specimens makes it necessary to combine information from fossils of different individuals to reconstruct their facial ...
Mauricio Antón   +4 more
wiley   +1 more source

Skeletal Transformations and the Origin of Baleen Whales (Mammalia, Cetacea, Mysticeti): A Study on Evolutionary Patterns

open access: yesDiversity, 2022
A review of the morphological patterns exhibited by all the main radiations of mysticete (baleen whale) cetaceans provided a broad assessment of the fundamental morphological transformations that occurred in the transition to the Mysticeti clade.
Michelangelo Bisconti, Giorgio Carnevale
doaj   +1 more source

Small fish, large variation: Morphological diversity of Weberian apparatus in Noturus catfishes and ecological implications

open access: yesThe Anatomical Record, EarlyView.
Abstract The Weberian apparatus is a hearing specialization unique to the otophysan fishes, and an unexpected degree of morphological variation exists in species of the Noturus catfishes. Our aim in this study is to investigate relationships between morphological variations and ecology that may drive this variation.
J. C. Hoeflich, Juan Liu
wiley   +1 more source

Amateur paleontological societies and fossil clubs, interactions with professional paleontologists, and social paleontology in the United States

open access: yes, 2016
Considerable interest exists among lifelong learners in the USA about fossils and the science of paleontology. Unlike some other science-related groups, e.g., astronomy and ornithology, interest in fossils among amateur paleontologists is primarily ...
B. MacFadden   +4 more
semanticscholar   +1 more source

Phylogeny, paleontology, and primates: do incomplete fossils bias the tree of life?

open access: yesSystematic Biology, 2015
Paleontological systematics relies heavily on morphological data that have undergone decay and fossilization. Here, we apply a heuristic means to assess how a fossil's incompleteness detracts from inferring its phylogenetic relationships.
D. Pattinson   +3 more
semanticscholar   +1 more source

Segmentation of cortical bone, trabecular bone, and medullary pores from micro‐CT images using 2D and 3D deep learning models

open access: yesThe Anatomical Record, EarlyView.
Abstract Computed tomography (CT) enables rapid imaging of large‐scale studies of bone, but those datasets typically require manual segmentation, which is time‐consuming and prone to error. Convolutional neural networks (CNNs) offer an automated solution, achieving superior performance on image data.
Andrew H. Lee   +3 more
wiley   +1 more source

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