Long-necked chelid turtles from the Campanian of northwestern Patagonia with comments on K/P survivorship of the genus Yaminuechelys

@article{Fuente2015LongneckedCT,
  title={Long-necked chelid turtles from the Campanian of northwestern Patagonia with comments on K/P survivorship of the genus Yaminuechelys},
  author={Marcelo de la Fuente and Ignacio J. Maniel and Juan Marcos Jannello and Leonardo S. Filippi and Ignacio A. Cerda},
  journal={Comptes Rendus Palevol},
  year={2015},
  volume={14},
  pages={563-576}
}
Abstract The long-necked chelid turtle Yaminuechelys aff. maior is described on the basis of post-cranial material of two specimens from the Lower–Middle Campanian Anacleto Formation, nortwestern Patagonia (Argentina). These post-cranial remains are described macroscopically (external morphology) and microscopically (histological sections of the shell). Although minor carapace and plastral differences are reported (e.g., extension of the axillary buttresses on visceral surfaces of the first… Expand
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The phylogenetic hypothesis proposed supports a sister-group relationship between Yaminuechelys and Hydromedusa, a monophyletic group supported by cranial and postcranial derived characters, and differentiated in Patagonia at least as early as the upper Cretaceous. Expand
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The chelonian fauna of the Portezuelo Formation (Turonian-Coniacian), outcropping at Sierra del Portezuelo (Neuquen province, Argentina), is reported. Two new taxa of pleurodiran turtles areExpand
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A new chelid species (Prochelidella cerrobarcinae nov. sp.) are described from the Aptian-Albian? Puesto La Paloma Member, Cerro Barcino Formation, northern of Chubut Province, Argentina. The basalExpand
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TLDR
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TLDR
Character mapping indicates that the hypothesis of clades based on neck length is supported by two synapomorphies and one less tree step in contrast to the molecular-based separation based on geographic distribution, which indicates South American and Australasian chelids are monophyletic, regardless of neck-length. Expand
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TLDR
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A new sauropod titanosaur from the Upper Cretaceous Anacleto Formation is described. Narambuenatitan palomoi gen. et sp. nov., is diagnosed by cranial and axial autapomorphies. The holotype, whichExpand
New evidence from the Palaeocene of Patagonia (Argentina) on the evolution and palaeo-biogeography of Meiolaniformes (Testudinata, new taxon name)
TLDR
The phylogenetic scenario presented here shows that at least two lineages of Meiolaniformes survived the K–P boundary extinction, and supports the hypothesis that this group of turtles may have originated as early as the Early Cretaceous in the South American part of Gondwana. Expand
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