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Amabilis Uchoensis
''Amabilis uchoensis'' is a species of prehistoric Pleurodira, pleurodiran turtle from the Late Cretaceous of South America. It is the only species in the genus ''Amabilis''. Description Hermanson et al. (2020 in paleontology, 2020) described the Late Cretaceous turtle ''Amabilis uchoensis'' based on a single partial skull from the Bauru_Group#Subdivisions, São José do Rio Preto Formation, in the Brazilian state of São Paulo (state), São Paulo. The São José do Rio Preto Formation is thought to have been deposited during the Santonian age of the Late Cretaceous, between 86.3 and 83.6 million years ago. The type-specimen skull, which is 2.25 cm long and 2.06 cm wide, suggests that the animal was smaller than any other fossil turtles found in Brazil's Bauru Group. Modern Brazilian river turtles are also considerably larger, ranging in length from 34 cm (''Podocnemis erythrocephala'') to 90 cm (''Podocnemis expansa''.) This skull is deposited in Uchoa's Museum of Paleontology. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Santonian
The Santonian is an age in the geologic timescale or a chronostratigraphic stage. It is a subdivision of the Late Cretaceous Epoch or Upper Cretaceous Series. It spans the time between 86.3 ± 0.7 mya (million years ago) and 83.6 ± 0.7 mya. The Santonian is preceded by the Coniacian and is followed by the Campanian.Gradstein ''et al.'' (2004) Stratigraphic definition The Santonian Stage was established by French geologist Henri Coquand in 1857. It is named after the city of Saintes in the region of Saintonge, where the original type locality is located. The base of the Santonian Stage is defined by the appearance of the inoceramid bivalve ''Cladoceramus undulatoplicatus''. The GSSP (official reference profile) for the base of the Santonian Stage is located near Olazagutia, Spain; it was ratified by the Subcommission on Cretaceous Stratigraphy in 2012. The Santonian's top (the base of the Campanian Stage) is informally marked by the extinction of the crinoid '' Marsupites tes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |