scholarly journals A new species of Andiceras Krantz (Cephalopoda: Ammonoidea) from the Late Jurassic-Early Cretaceous of the Neuquen Basin, Mendoza, Argentina. Systematics and Biostratigraphy

2012 ◽  
Vol 39 (1) ◽  
Author(s):  
Veronica V. Vennari ◽  
Pamela P. Alvarez ◽  
Beatriz Aguirre-Urreta
Keyword(s):  
New Species ◽  
Early Cretaceous ◽  
Late Jurassic ◽  
Neuquen Basin ◽  
Neuquén Basin ◽  
A New Species

scholarly journals The oldest species of the genusLaeviprosopon (Decapoda: Brachyura: Prosopidae) from the Oxfordian of Poland

2020 ◽  
Vol 63 (1) ◽  
pp. 9-13
Author(s):  
Natalia Starzyk
Keyword(s):  
New Species ◽  
Early Cretaceous ◽  
Late Jurassic ◽  
Southern Poland ◽  
A New Species

Till now the genus Laeviprosopon has comprised 12 species aged from the Late Jurassic to the end of the Early Cretaceous. Recently a new species was found in the Oxfordian locality of Polish Jura Chain, Laeviprosopon musialiki n. sp., described herein. Representatives of the genus Laeviprosopon are very rare in the Oxfordian localities of southern Poland. Laeviprosopon musialiki n. sp. is the oldest member of the genus.

The Late Jurassic pterosaurs from northern Patagonia, Argentina

2012 ◽  
Vol 103 (3-4) ◽  
pp. 399-408 ◽  
Author(s):  
Laura Codorniú ◽  
Zulma Gasparini
Keyword(s):  
Southern Hemisphere ◽  
Late Jurassic ◽  
New Genus ◽  
Upper Jurassic ◽  
New Genus And Species ◽  
Vaca Muerta ◽  
Neuquen Basin ◽  
Neuquén Basin ◽  
Vaca Muerta Formation ◽  
A New Species

ABSTRACTRecords of flying Jurassic reptiles are very scarce in the Southern Hemisphere. Upper Jurassic pterosaurs have been discovered in marine Tithonian sediments of the Vaca Muerta Formation, in the Neuquén Basin, Patagonia, Argentina. Only four specimens are known so far: the first from Arroyo Picún Leufú, and the other three from the lithographic limestones of Los Catutos. Here, we update knowledge of Late Jurassic pterosaurs from northwest Patagonia. We revise the diagnosis and description of a previously described pterodactyloid, which is named as a new genus and species, Wenupteryx uzi. This small-sized pterosaur shows affinities with Euctenochasmatia or Archaeopterodactyloidea, and represents the most complete Jurassic pterosaur so far known from the Southern Hemisphere. We also report a recent finding suggesting that the new specimen belongs to a new species of pterodactyloid pterosaur. These records show that at least three different taxa of pterosaurs coexisted in the Neuquén Basin: Herbstosaurus, Wenupteryx and a more derived pterodactyloid that represents the largest pterosaur known from the Upper Jurassic of Gondwana.

scholarly journals A new species of baenid turtle from the Early Cretaceous Lakota Formation of South Dakota

Fossil Record ◽  
2020 ◽  
Vol 23 (1) ◽  
pp. 1-13
Author(s):  
Walter G. Joyce ◽  
Yann Rollot ◽  
Richard L. Cifelli
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
South Dakota ◽  
Early Cretaceous ◽  
Fossil Record ◽  
Late Jurassic ◽  
Sister Group ◽  
Sister Group Relationship ◽  
Relationship Of ◽  
A New Species

Abstract. Baenidae is a clade of paracryptodiran turtles known from the late Early Cretaceous to Eocene of North America. The proposed sister-group relationship of Baenidae to Pleurosternidae, a group of turtles known from sediments dated as early as the Late Jurassic, suggests a ghost lineage that crosses the early Early Cretaceous. We here document a new species of paracryptodiran turtle, Lakotemys australodakotensis gen. and sp. nov., from the Early Cretaceous (Berriasian to Valanginian) Lakota Formation of South Dakota based on a poorly preserved skull and two partial shells. Lakotemys australodakotensis is most readily distinguished from all other named Late Jurassic to Early Cretaceous paracryptodires by having a broad, baenid-like skull with expanded triturating surfaces and a finely textured shell with a large suprapygal I that laterally contacts peripheral X and XI and an irregularly shaped vertebral V that does not lap onto neural VIII and that forms two anterolateral processes that partially separate the vertebral IV from contacting pleural IV. A phylogenetic analysis suggests that Lakotemys australodakotensis is a baenid, thereby partially closing the previously noted gap in the fossil record.

FILLING THE GAP: NEW TITHONIAN-EARLY CRETACEOUS DATA FROM THE NEUQUEN BASIN, ARGENTINE ANDES

2018 ◽  
Author(s):  
Beatriz Aguirre-Urreta ◽  
◽  
Mathieu Martinez ◽  
Marina Lescano ◽  
Mark Schmitz ◽  
...  
Keyword(s):  
Early Cretaceous ◽  
Neuquen Basin ◽  
Neuquén Basin
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