Results 61 to 70 of about 46,523 (255)

T. rex cognition was T. rex‐like—A critical outlook on diverging views of the neurocognitive evolution in dinosaurs

open access: yesThe Anatomical Record, EarlyView.
Abstract A recent debate has emerged between Caspar et al. (2024) and Herculano‐Houzel (2023) on inferring extinct dinosaur cognition by estimating brain neuron counts. While thought‐provoking, the discussion largely overlooks the function of cognition, as well as partly neglects the difficulties involved in estimating neuron numbers, which according ...
Thomas Rejsenhus Jensen   +7 more
wiley   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

open access: yesThe Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

Road and bridge construction across gypsum karst in England [PDF]

open access: yes, 2002
Gypsum karst problems in the Permian and Triassic sequences of England have caused difficult conditions for bridge and road construction. In Northern England, the Ripon Bypass crosses Permian strata affected by active gypsum karst and severe subsidence ...
Anthony H Cooper   +20 more
core   +3 more sources

The last erythrosuchid—a revision of Chalishevia cothurnata from the late Middle Triassic of European Russia [PDF]

open access: yesActa Palaeontologica Polonica, 2019
Erythrosuchidae is a clade of early archosauriform reptiles that were large-bodied, hypercarnivorous, possibly apex pred-ators in late Early and Middle Triassic ecosystems following the Permo-Triassic mass extinction.
Richard J. Butler   +3 more
doaj   +1 more source

Tectonically-controlled Late Triassic and Jurassic sedimentary cycles on a peri-Tethyan ridge (Villány, southern Hungary) [PDF]

open access: yes, 2009
The article briefly summarizes the history of research of the Villány Mesozoic, with a focus on the Templom-hegy at Villány, and gives short descriptions of the important outcrops of the area.
Vörös, Attila
core   +1 more source

Skeletal pathologies in extant crocodilians as a window into the paleopathology of fossil archosaurs

open access: yesThe Anatomical Record, EarlyView.
Abstract Crocodilians, together with birds, are the only extant relatives to many extinct archosaur groups, making them highly important for interpreting paleopathological conditions in a phylogenetic disease bracketing model. Despite this, comprehensive data on osteopathologies in crocodilians remain scarce.
Alexis Cornille   +6 more
wiley   +1 more source

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

open access: yesThe Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

Late Triassic (Rhaetian) conodonts and ichthyoliths from Chile [PDF]

open access: yes, 2000
The Late Triassic of the back arc Domeyko Basin, Chile is characterized by the onset of marine sedimentation that persisted throughout the rest of the Mesozoic.
Sansom, Ivan J.
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

The Bulog Formation in the type area (Sarajevo) and related Middle and Late Triassic open-marine sedimentary successions in the Dinarides of Bosnia and Herzegovina [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva
The type area of the Bulog Formation in the area of Sarajevo is revisited in order to solve the still open question of the palaeogeographic provenance of the type‐section of the late Pelsonian‐Illyrian Bulog Formation and other related Middle Triassic ...
Sudar Milan   +2 more
doaj   +1 more source

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