نتایج جستجو برای: early maastrichtian

تعداد نتایج: 686539  

2012
Gerald Grellet-Tinner Vlad Codrea Annelise Folie Alessandra Higa Thierry Smith

BACKGROUND The Cretaceous vertebrate assemblages of Romania are famous for geographically endemic dwarfed dinosaur taxa. We report the first complete egg clutches of a dwarf lithostrotian titanosaur, from Toteşti, Romania, and its reproductive adaptation to the "island effect". METHODOLOGY/FINDINGS The egg clutches were discovered in sequential sedimentary layers of the Maastrichtian Sânpetru...

Journal: :Geologie En Mijnbouw 2023

Abstract A mandible of a Late Cretaceous sea turtle with affinities to Ctenochelys is reported from the Maastrichtian type area Netherlands. The triangular has well-developed symphyseal ridge surrounded on both sides by large, concave areas triturating surface. It represents first potential occurrence area. This finding increases diversity fauna known

2017
Darren Naish Mark P. Witton

Azhdarchid pterosaurs include the largest animals to ever take to the skies with some species exceeding 10 metres in wingspan and 220 kg in mass. Associated skeletons show that azhdarchids were long-necked, long-jawed predators that combined a wing planform suited for soaring with limb adaptations indicative of quadrupedal terrestrial foraging. The postcranial proportions of the group have been...

Journal: :Anais da Academia Brasileira de Ciencias 2011
Bernardo J González Riga

Speed estimations from trackways of Titanopodus mendozensis González Riga and Calvo provide information about the locomotion of titanosaurian sauropods that lived in South America during the Late Cretaceous. Titanopodus ichnites were found at Agua del Choique, a newly discovered track site in the Loncoche Formation, Late Campanian-Early Maastrichtian of Mendoza, Argentina. This speed study foll...

Journal: :The Paleontological Society Special Publications 1996

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