Discovery of a short-necked sauropod dinosaur from the Late Jurassic period of Patagonia

  title={Discovery of a short-necked sauropod dinosaur from the Late Jurassic period of Patagonia},
  author={Oliver W. M. Rauhut and Kristian Remes and Regina Fechner and Gerardo Cladera and Pablo F. Puerta},
Sauropod dinosaurs are one of the most conspicuous groups of Mesozoic terrestrial vertebrates. They show general trends towards an overall increase in size and elongation of the neck, by means of considerable elongation of the length of individual vertebrae and a cervical vertebra count that, in some cases, increases to 19 (ref. 1). The long neck is a particular hallmark of sauropod dinosaurs and is usually regarded as a key feeding adaptation. Here we describe a new dicraeosaurid sauropod… 

Sauropod dinosaur remains from a new Early Jurassic locality in the Central High Atlas of Morocco

Two sauropod middle cervical vertebrae from a new Early Jurassic locality in the Haute Moulouya Basin, Central High Atlas of Morocco are described and represent one of the earliest eusauropod taxa and are an important additional data point for elucidating the early evolution of the clade.

Zby atlanticus, a New Turiasaurian Sauropod (Dinosauria, Eusauropoda) from the Late Jurassic of Portugal

A new partial sauropod skeleton from the late Kimmeridgian Lourinhã Formation, central west Portugal is described, which appears to be closely related to Turiasaurus riodevensis from approximately contemporaneous deposits in eastern Spain.

Osteology and phylogenetic relationships of Tehuelchesaurus benitezii (Dinosauria, Sauropoda) from the Upper Jurassic of Patagonia

The phylogenetic relationships of this taxon are tested through an extensive cladistic analysis that recovers Tehuelchesaurus as a non-titanosauriform camarasauromorph, deeply nested within Neosauropoda.

The appendicular skeleton of the dwarf macronarian sauropod Europasaurus holgeri from the Late Jurassic of Germany and a re-evaluation of its systematic affinities

An extensive re-evaluation of the systematic position of Europasaurus was done based on the three most substantial data sets published in recent years, which resolvedEuropasaurus as a basal camarasauromorph in all cases, but brachiosaurid affinities remain plausible, especially considering the heterochronic evolution of the taxon.

High browsing skeletal adaptations in Spinophorosaurus reveal an evolutionary innovation in sauropod dinosaurs

The process of mounting a nearly complete virtual skeleton of Spinophorosaurus nigerensis, from the Middle (?) Jurassic of Niger, has revealed several previously unknown osteological adaptations in this taxon, suggesting that at least the last common ancestor of Eusauropoda developed high browsing capabilities, partially due to the modified wedged sacrum.

Aspects of the history, anatomy, taxonomy and palaeobiology of sauropod dinosaurs

Xenoposeidon proneneukos is a new neosauropod from the Lower Cretaceous Hastings Bed Group, known from a single partial dorsal vertebra, and the distinctive morphology suggests that Xenoboseidon may represent a new sauropod family, extending saurood disparity as well as bringing to four the number of sauro pod families known from the Wealden.

A new long-necked ‘sauropod-mimic’ stegosaur and the evolution of the plated dinosaurs

A well-resolved phylogeny supports a new clade that unites Miragaia and Dacentrurus as the sister group to Stegosaurus; this new topology challenges the common view of DacentRurus as a basal stegosaur.

A revision of the sauropod dinosaur genus ‘Bothriospondylus’ with a redescription of the type material of the Middle Jurassic form ‘B. madagascariensis’

Abstract:  The sauropod dinosaur ‘Bothriospondylus’, originally named on the basis of Late Jurassic remains from England, is demonstrated to be invalid, and the characters used to diagnose it are

A sauropod from the Lower Jurassic La Quinta Formation (Dept. Cesar, Colombia) and the initial diversification of eusauropods at low latitudes

ABSTRACT The northern-most occurrence of Sauropoda in South America was collected in the 1940s from Early–Middle Jurassic-aged continental sediments on the western flank of the Serranía del Perijá in

A Reapprisal of Barsboldia sicinskii (Dinosauria: Hadrosauridae) from the Late Cretaceous of Mongolia

A maximum parsimony analysis of 47 hadrosauroid species does not support the purported lambeosaurine affinities of B. sicinskii, but recovers this form as a basal saurolophine hadrosaurid based on unambiguous synapomorphies of the ilium.



The evolution of sauropod feeding mechanisms

Sauropods were gigantic, long-necked, herbivorous dinosaurs, which dominated many Jurassic and Cretaceous terrestrial faunas, and the ‘aquatic’ hypothesis had an important effect on interpretations of sauropod feeding habits and mechanisms.

Feeding mechanisms of the sauropod dinosaurs Brachiosaurus, Camarasaurus, Diplodocus and Dicraeosaurus

Skull morphologies and dental wear patterns have been examined in four sauropod genera to evaluate their probable feeding mechanisms and suggest a raking motion of the jaws during feeding in Diplodocus and Dicraeosaurus.


The material is represented by the basicranial and temporal regions of the skull and most of the postcranium. The comparative discussion of this new species suggests it is more derived than

Neck posture and feeding habits of two jurassic sauropod dinosaurs

Articulated digital reconstructions of two diplodocid sauropods revealed cervical poses and feeding envelopes that suggest that these sauroPods were adapted to ground feeding or low browsing, contrary to the view that diplodytids were high browsers.

African Dinosaurs Unearthed: The Tendaguru Expeditions

Preliminary Table of Contents: Preface 1. 1907: Fraas and Something Curious in the African Bush 2. 1908: Von Branca and a Matter of National Honour 3. 1909: Janensch, Hennig, and a Cemetery of Giants

Neck posture and overall body design in sauropods

The method is shown to be suitable for the reconstruction of the habitual posture of longnecked terrestrial vertebrates, even if the distribution of mass along the head and neck and the lever arms of the neck muscles and ligaments are only roughly estimated.

Dinosaur feeding behaviour and the origin of flowering plants

A reappraisal of current theorie suggests that the origin of flowering plants was closely correlated with the spread of big, low-browsing dinosaurs.

Die Wirbelsäule der Gattung Dicraeosaurus

  • Palaeontographica 2 (suppl
  • 1929


  • J. Hunter
  • Environmental Science, Geography
  • 2002
This book is a symposium volume that grew out of a conference on the evolution of herbivory at the Sixth North American Paleontological Convention (NAPC-96), held at the Smithsonian Institution,

A nomenclature for vertebral laminae in sauropods and other saurischian dinosaurs

A landmark-based nomenclature for sauropod vertebral laminae is proposed, which establishes the first criterion of homology (similarity), is the first step towards interpreting their phylogenetic significance.