Results 61 to 70 of about 47,008 (268)

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

The 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, Ivo Jacobs, Kristina Kverková, Lona Lalić, Alexandra Polonyiová, Patrik Stehlík, Stephan A. Reber, Mathias Osvath   +7 more
wiley   +1 more source

Earliest Triassic microbialites in the South China Block and other areas; controls on their growth and distribution [PDF]

, 2007
Earliest Triassic microbialites (ETMs) and inorganic carbonate crystal fans formed after the end-Permian mass extinction (ca. 251.4 Ma) within the basal Triassic Hindeodus parvus conodont zone.
A Baud, A Baud, A Sandler, AD Woods, Alan Reynolds, AME Winguth, B Beauchamp, C Armella, CB Foster, D Chen, DH Erwin, DJ Lehrmann, DJ Lehrmann, DL Kidder, DL Lehrmann, E Garzanti, E Heydari, ES Krull, G Ryskin, H Sano, H Yang, J Haas, J Payne, J Tong, JJ Dravis, JJ Sepkoski Jr, JK Schubert, JM Kennard, JP Grotzinger, JT Kiehl, K Grice, K Grice, K Hips, K Kaiho, K Perch-Nielsen, L Krystyn, Li Guo, LR Kump, M Calner, MA Sephton, ME Brookfield, ML Fraiser, MR Saltzman, MT Whalen, N Sheldon, O Weidlich, P Sheehan, PB Wignall, PB Wignall, Pierre-Yves Collin, Qinglai Feng, R Riding, R Riding, R Riding, RA Berner, RF Dill, RJ Twitchett, RJ Twitchett, RK Goldhammer, RM Hotinski, S Crasquin-Soleau, S Crasquin-Soleau, S Kempe, S Kershaw, S Kershaw, S Kershaw, S Wang, SB Pruss, SH Bottrell, Steve Kershaw, Sylvie Crasquin-Soleau, W Wang, Xinan Mu, Y Ezaki, Y Isozaki, Y Kakuwa, Y Wang, Yue Li   +77 more
core   +2 more sources

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

The 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

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

The 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, Kyla Beguesse, Ewan Wolff, Clemens Zinner, Patrick Asbach, François Clarac, Florian Witzmann   +6 more
wiley   +1 more source

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

Acta 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, Andrey G. Sennikov, Martín D. Ezcurra, David J. Gower   +3 more
doaj   +1 more source

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

The 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

Temporal and phylogenetic evolution of the sauropod dinosaur body plan [PDF]

, 2016
The colossal size and body plan of sauropod dinosaurs are unparalleled in terrestrial vertebrates. However, to date, there have been only limited attempts to examine temporal and phylogenetic patterns in the sauropod bauplan.
Allen, V, Bates, KT, Brusatte, SL, Falkingham, PL, Hutchinson, JR, Mannion, PD, Otero, A, Sellers, WI, Stevens, KA, Sullivan, C   +9 more
core   +4 more sources

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

The 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, Cristián Gutiérrez‐Ibáñez, Hady George, Thomas R. Holtz Jr., Darren Naish, Grant R. Hurlburt   +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]

Geološki 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, Gawlick Hans-Jürgen, Skopljak Ferid   +2 more
doaj   +1 more source

Climatic and eustatic controls on the development of a Late Triassic source rock in the Jameson Land Basin, East Greenland [PDF]

, 2014
This work was undertaken as part of the continuing work of CASP in East Greenland. The sponsoring companies are thanked for their continued support of this work. Help in the field by T. Kinnaird and useful discussions with A.
Andrews, Steven D., Braham, William, Kaye, Matt, Kelly, Simon R. A.   +3 more
core   +1 more source