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Theropod Dinosaur Trackways from the Lower Cretaceous of the Chacarilla Formation, Chile
(Servicio Nacional de Geología y Minería (SERNAGEOMIN), 2008)
A new Cretaceous Pleurodira Pelomedusoides from the Lower Cretaceous of Parnaíba Basin, Brazil
(Pergamon-Elsevier Science Ltd, 2021-01)
The new Pleurodira turtle Itapecuruemys amazonensis gen. et sp. nov. from the Itapecuru Formation (Parnaíba Basin, Brazil) is described. The new species is represented only by its holotype, which consists of an almost ...
Lower Cretaceous ammonites from the Neuquén Basin, Argentina: the Hauterivian neocomitid genusHoplitocrioceras (Giovine, 1950)
(Academic Press Ltd - Elsevier Science Ltd, 2001-12)
Hoplitocrioceras is a poorly-known ammonite genus of late Early Hauterivian age that may be endemic to the Neuquén Basin Argentina where it occurs at a clearly defined horizon in the Agrio Formation. It is an unusual genus ...
Lower Cretaceous ammonites from the Neuquén Basin, Argentina: The Hauterivian genus Holcoptychites
(Academic Press Ltd - Elsevier Science Ltd, 2003-12)
Holcoptychites is known only from the Neuquén Basin, Argentina, but appears close to the more widespread genera Jeanthieuloyites and Spitidiscus. Thus it is placed in the subfamily Spitidiscinae (Family Holcodiscidae). ...
Lower Cretaceous ammonites from the Neuquén Basin, Argentina: A Hauterivian Olcostephanus fauna
(Academic Press Ltd - Elsevier Science Ltd, 2001-12)
The olcostephanid fauna of the Olcostephanus (O.) laticosta [formerly O. (O.) leanzai] Subzone (Agrio Formation) represents the last of four discrete invasions of olcostephanid ammonites into the Neuquén Basin of west-central ...
Magnetostratigraphy of the Jurassic through Lower Cretaceous in the Neuquén Basin
(Springer Nature Switzerland AG, 2020)
The first magnetostratigraphic scales for the Jurassic through Early Cretaceous from the Southern Hemisphere have been constructed over the last decades from marine sections in the Neuquén Basin. Paleomagnetic sites were ...
New Antarctic findings of Upper Cretaceous and lower Eocene loons (Aves: Gaviiformes)
(Elsevier Masson, 2015-10)
The new remains of Gaviiformes collected from the Maastrichtian Sandwich Bluff Member (López de Bertodano Formation in Vega Island), the Maastrichtian Klb 9 (López de Bertodano Formation in Seymour Island), the Maastrichtian ...
New ctenochasmatid pterosaur record for Gondwana: discovery in the Lower Cretaceous continental deposits of the Atacama Desert, northern Chile
(Elsevier, 2020)
New pterosaur remains from Cerro La Isla, Quebrada Monardes Formation (Lower Cretaceous), Northern Chile, are described. The material comprises mandibular remains preserving dental bases and two vertebrae of the mid cervical ...
Lower Cretaceous (Albian) Asteroidea (Echinodermata) from Tepexi de Rodriguez, Puebla, Mexico
(Universidad de Costa Rica, 2015)