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Fossil material of a giant titanosaur sauropod, distinct from Andesaurus and probably exceeding Patagotitan in size, is described from the Cenomanian Candeleros Formation by Otero et al. (2021). [240] Revision of known fossil material of Pellegrinisaurus powelli and a study on the skeletal anatomy, bone histology and phylogenetic relationships ...
A study on the evolution of tooth complexity in squamates, based on data from extant and fossil taxa, is published by Lafuma et al. (2021). [21]A study on the diversity of jaw sizes, lower jaw shape and morphology of teeth in Cretaceous squamates is published by Herrera-Flores, Stubbs & Benton (2021), who interpret their findings as indicating that a substantial expansion of ecomorphological ...
The Candeleros Formation is interpreted as a desert depositional environment, representing the Kokorkom Desert, with some oases in it, and fossils representing a faunal assemblage typical of Middle Cretaceous ecosystems in the western remnants of Gondwana.
The geologic time scale, proportionally represented as a log-spiral with some major events in Earth's history. A megaannus (Ma) represents one million (10 6) years.. The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth.
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Hone et al. (2024) report that the fossil material assigned to Luchibang xingzhe is a composite including remains of two pterosaurs, restrict the holotype to the rostrum and anterior mandible and consider this fossil material to be sufficient to confirm that L. xingzhe was a valid istiodactylid taxon, and interpret the purported postcranial ...
Owing to the skull's history, its exact provenance, and thus its stratigraphic context and age, has been difficult to determine. [3] [4]In 2021, Chinese geologist Shao Qingfeng and colleagues performed non-destructive x-ray fluorescence, rare-earth element, and strontium isotope analyses on the skull and various other mammalian fossils unearthed around Dongjiang Bridge, and determined that all ...
The fossils are preserved sedimentary deposits within a stratigraphic interval that alternates between the fossil-bearing beds and beds laid down by volcanic activity that are made of lava and volcanic ash. [3] In the Devonian, mountain building began elevating regions of Maine. By this time the state included terrestrial habitats.