Results 161 to 170 of about 1,947,082 (272)

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

open access: yesThe Anatomical Record, Volume 309, Issue 10, Page 2752-2789, October 2026.
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

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

open access: yesThe Anatomical Record, Volume 309, Issue 10, Page 2560-2573, October 2026.
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

Jaws of a large belemnite and an ammonite from the Aalenian (Middle Jurassic) of Switzerland. [PDF]

open access: yesSwiss J Palaeontol, 2020
Klug C   +4 more
europepmc   +1 more source

Mitogenomic Insights Into the Ancient Split and Cryptic Diversity of the Poecilochirus carabi Complex (Acari: Mesostigmata)

open access: yesEcology and Evolution, Volume 16, Issue 10, October 2026.
Mitochondrial genomes of Poecilochirus mites reveal a paraphyletic genus and uncover deep cryptic speciation within the P. carabi complex. Two divergent lineages (BJ1 and BJ2) show a cox1 genetic distance of 0.409 and an Eocene divergence time of ~52.4 million years ago, predating the split between two morphologically recognized species.
Lang Liang   +4 more
wiley   +1 more source

A new small-sized stem salamander from the Middle Jurassic of Western Siberia, Russia. [PDF]

open access: yesPLoS One, 2020
Skutschas P   +6 more
europepmc   +1 more source

Phylogenetic structure of conifers in regional floras in relation to climate and environmental heterogeneity worldwide

open access: yesEcography, Volume 2026, Issue 10, October 2026.
Despite having only about 670 species worldwide, conifers are one of the ecologically and economically most important plant groups. They have a rich fossil record and previous studies have shown that their current diversity is the result of past radiations, extinction, and dispersal events, restricting many genera to either the Northern or Southern ...
Hong Qian, Michael Kessler, Shenhua Qian
wiley   +1 more source

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