Results 21 to 30 of about 5,031 (178)

An Early Cretaceous enantiornithine (Aves) preserving an unlaid egg and probable medullary bone

open access: yesNature Communications, 2019
The fossil record of the reproductive traits of early birds is limited. Here, Bailleul and colleagues describe the Cretaceous enantiornithine bird Avimaia schweitzerae, which preserves an unlaid egg in the abdominal cavity and putative medullary bone.
Alida M. Bailleul   +7 more
doaj   +1 more source

Paleoanthropology Society Meeting Abstracts, Denver, CO, 17-18 March 2026

open access: yesPaleoAnthropology
These are the abstracts for the 2026 Paleoanthropology Society meetings.
PAS: Paleoanthropology Society
doaj   +1 more source

The taxonomy of Sahelanthropus tchadensis from a craniometric perspective [PDF]

open access: yesAnais da Academia Brasileira de Ciências
Sahelanthropus tchadensis has raised much debate since its initial discovery in Chad in 2001, given its controversial classification as the earliest representative of the hominin lineage.
WALTER NEVES   +3 more
doaj   +1 more source

First insights into trabecular bone distribution in the first metacarpal of Homo naledi [PDF]

open access: yes, 2023
Skinner, Matthew; orcid:   +4 more
core   +4 more sources

Past Materials, Past Minds: The Philosophy of Cognitive Paleoanthropology [PDF]

open access: yes
The philosophy of cognitive paleoanthropology involves three related tasks: (1) asking what inferences might be drawn from the paleontological and archaeological records to past cognition, behavior and culture; (2) constructing synthetic accounts of the ...
Killin, Anton   +4 more
core   +2 more sources

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

Pleistocene Hypothesis – Moving Savanna Perceptual Preference Hypothesis Beyond Savanna

open access: yesFrontiers in Psychology, 2022
We provide an extension of the Savanna perceptual preference hypothesis (“Savanna Hypothesis”), supposing that interaction with landscapes offering survival advantage for human groups during evolution might have gradually evolved to permanent landscape ...
Joachim Rathmann   +2 more
doaj   +1 more source

Integrating whole‐bone and regional analyses to understand human scapular growth

open access: yesThe Anatomical Record, EarlyView.
Abstract This study investigates ontogenetic changes in human scapular morphology using three‐dimensional geometric morphometrics with whole‐bone and region‐specific analyses. The aim is to evaluate whether the scapula follows a regular developmental pattern and whether its functionally distinct components, the scapular spine (SS) and glenoid fossa ...
Azahara Salazar‐Fernández   +3 more
wiley   +1 more source

New data on Selkup craniology from the Upper Taz river basin

open access: yesВестник археологии, антропологии и этнографии, 2018
Some researchers pointed out that the anthropological originality of some native groups of Western Siberia was formed as a result of late metisation processes that occurred in modern times.
Poshekhonova O.E.
doaj   +1 more source

Three‐dimensional geometric morphometric analysis of diaphragmatic dome motion in COPD patients

open access: yesThe Anatomical Record, EarlyView.
Abstract Diaphragmatic dysfunction is a hallmark of chronic obstructive pulmonary disease (COPD), especially in emphysema, where hyperinflation alters diaphragm geometry and impairs inspiratory mechanics. However, quantitative three‐dimensional (3D) assessments of diaphragmatic dome shape and motion across COPD phenotypes are limited.
José M. López‐Rey   +5 more
wiley   +1 more source

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