An Early Cretaceous astropectinid (Echinodermata, Asteroidea) from Patagonia (Argentina): a new species and the oldest record of the family for the Southern Hemisphere [PDF]
, 2014 Los asterozoos son echinodermos de vida libre, con forma de estrella, y componentes importantes de las faunas marinas bentónicas a nivel mundial. Su registro fósil, sin embargo, es pobre y fragmentario, probablemente debido a la desarticulación de los ...
Carrizo, Martin Alejandro +3 more
core +1 more source
Early synapsids neurosensory diversity revealed by CT and synchrotron scanning
The Anatomical Record, EarlyView.Abstract Non‐mammaliaform synapsids (NMS) represent the closest relatives of today's mammals among the early amniotes. Exploring their brain and nervous system is key to understanding how mammals evolved. Here, using CT and Synchrotron scanning, we document for the first time three extreme cases of neurosensory and behavioral adaptations that probe ...
J. Benoit +6 more
wiley +1 more source
New scientific direction of the bacterial paleontology in Mongolia: an essence of investigation [PDF]
, 2019 We review the initial development of Bacterial Paleontology in Mongolia and present some electron microscopic images of fossil bacteria in different stages of preservation in sedimentary rocks.
Altanshagai, Gundsambuu +2 more
core +1 more source
Faunal change in Cretaceous endemic shallow-marine bivalve genera/subgenera of the northeast Pacific [PDF]
, 2020 Endemic shallow-marine Cretaceous bivalves in the northeast Pacific region (NEP), extending from southwestern Alaska to the northern part of Baja California Sur, Mexico, are tabulated and discussed in detail for the first time.
Squires, Richard L.
core
Gigantism in unique biogenic magnetite at the Paleocene-Eocene Thermal Maximum [PDF]
, 2008 We report the discovery of exceptionally large biogenic magnetite crystals in clay-rich sediments spanning the Paleocene-Eocene Thermal Maximum (PETM) in a borehole at Ancora, New Jersey. Aside from previously-described abundant bacterial magnetofossils,
Guerquin-Kern, Jean-Luc +12 more
core +2 more sources
The Anatomical Record, EarlyView.Abstract The canine of saber‐toothed predators represents one of the most specialized dental structures known. Hypotheses about the function of hypertrophied canines range from display and conspecific interaction, soft food processing, to active prey acquisition.
Z. Jack Tseng
wiley +1 more source
Burdigalian deposits of the Santa Cruz Formation in the Sierra Baguales, Austral (Magallanes) Basin: Age, depositional environment and vertebrate fossils [PDF]
, 2013 Indexación: Web of Science; Scielo.ABSTRACT. A succession of marine and continental strata on the southern flank of Cerro Cono in the Sierra Baguales, northeast of Torres del Paine, can be correlated with stratigraphic units exposed along the southern ...
Bostelmann, J. Enrique +10 more
core +2 more sources
Morphological diversity of saber‐tooth upper canines and its functional implications
The Anatomical Record, EarlyView.Abstract Elongated upper canine teeth, commonly known as saber‐teeth, have evolved three times within the sub‐order Feliformia. The species that wielded them flourished throughout the Cenozoic and have historically been separated into two morphological groups: the dirk‐tooths with longer, flatter canines, and the scimitar‐tooths with shorter, serrated ...
Caitlin D. Shelbourne +1 more
wiley +1 more source
Community-driven enhancement of information ecosystems for the discovery and use of paleontological specimen data: Stakeholder engagement workshop [PDF]
Research Ideas and OutcomesA stakeholder engagement workshop was held in May 2024 as part of the "Community-driven enhancement of information ecosystems for the discovery and use of paleontological specimen data" project, which is funded under the United States National ...
Talia Karim +3 more
doaj +3 more sources
Royal Society Open Science, 2021 During the Cretaceous, diversifications and turnovers affected terrestrial vertebrates experiencing the effects of global geographical change. However, the poor fossil record from the early Late Cretaceous has concealed how dinosaurs and other ...
Chase Doran Brownstein
doaj +1 more source