Results 81 to 90 of about 157,520 (337)
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
Systematics of putative euparkeriids (Diapsida: Archosauriformes) from the Triassic of China [PDF]
PeerJ, 2014 The South African species Euparkeria capensis is of great importance for understanding the early radiation of archosauromorphs (including archosaurs) following the Permo–Triassic mass extinction, as most phylogenetic analyses place it as the sister taxon
Roland B. Sookias +3 more
doaj +2 more sources
Endemic Flora and Fauna of Arkansas [PDF]
, 1982 Arkansas has an amazing diversity of plants and animals contained within its political boundaries. Forty-seven taxa are reported as Arkansas endemics, including seven plants, thirteen crustaceans (two amphipods, three isopods, eight crayfishes), nine ...
Robison, Henry W., Smith, Kenneth L.
core +2 more sources
The neck of Barosaurus was not only longer but also wider than those of Diplodocus and other diplodocines [PDF]
, 2016 Barosaurus is a diplodocid sauropod from the Upper Jurassic Morrison Formation of the western United States, and is known for its very long neck. It is related to the sympatric Diplodocus, and often thought of as more or less identical except with a ...
Taylor, Michael P, Wedel, Mathew J.
core +2 more sources
The Anatomical Record, EarlyView.Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Henry S. Sharpe +4 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract KNM‐ER 64061 is a partial skeleton from the upper Burgi Member of the Koobi Fora Formation (2.02–2.06 Ma) associated taphonomically and geochemically with a nearly complete mandibular dentition (KNM‐ER 64060) attributed to Homo habilis.
Frederick E. Grine +8 more
wiley +1 more source
The coral fauna of the Midway Eocene of Texas [PDF]
, 1933 The coral fauna of the Midway Eocene of Texas includes thirteen separate species and varieties. Only two of the species, each represented in a single locality by a single specimen, belong to the colonial types.
Popenoe, Willis Parkison +1 more
core
A taxonomic revision of Camptocerus Dejean (Coleoptera: Curculionidae: Scolytinae) [PDF]
, 2010 The Neotropical ambrosia beetle genus Camptocerus Dejean was revised. Monophyly of the genus was tested using 66 morphological characters in a cladistic analysis. Camptocerus was recovered as monophyletic and 31 species were recognized.
Cognato, Anthony I., Smith, Sarah M.
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The Anatomical Record, EarlyView.Osteohistological sampling on different bones of theropod dinosaur documents discrepant age record, growth, and metabolism. This could result unprecise paleobiological inferences if samplings are based on single bones. However, multi‐bone sampling can attenuate these discrepancies, helping to infer growth dynamics and physiology of these extinct ...
Geovane Alves de Souza +3 more
wiley +1 more source
Rivista Italiana di Paleontologia e Stratigrafia, 2017 A careful preparation of the holotype of Endennasautus acutirostris Renesto, 1984, that revealed part of the skull roof, along with the finding of a new specimen, allow a more complete description of the skeletal anatomy of this reptile and a better ...
SILVIO RENESTO
doaj +1 more source