Evidence for Bipedal Prosauropods as the Likely Eubrontes Track-Makers

  title={Evidence for Bipedal Prosauropods as the Likely Eubrontes Track-Makers},
  author={Robert E. Weems},
  pages={187 - 215}
  • R. Weems
  • Published 19 January 2019
  • Environmental Science, Geography
  • Ichnos
Abstract The tridactyl ichnotaxon Eubrontes giganteus commonly has been attributed to a carnivorous theropod dinosaur similar to Dilophosaurus or Liliensternus. For this to be correct, however, at least five unusual circumstances all must be true. (1) If the Eubrontes track-maker was a theropod, it created the most abundant large tracks found in the Connecticut Valley Hartford and Deerfield basins and yet, for unknown reasons, left no skeletal remains there at all. This pattern also holds true… 

Reviving Kalosauropus, an Early Jurassic sauropodomorph track from southern Africa (Lesotho)

ABSTRACT Kalosauropus, the ‘beautiful reptile track’, was collected from the Sinemurian–Pliensbachian lower Clarens Formation (upper Stormberg Group) in Lesotho in the 1950s. It was formally

Saurischian dinosaur tracks from the Upper Triassic of southern Queensland: possible evidence for Australia’s earliest sauropodomorph trackmaker

ABSTRACT Fossil footprints provide the only evidence of Triassic-aged dinosaurs in Australia. While historically several Triassic dinosaur tracksites are reported, only one specimen exists for direct

Uncommon preservation of dinosaur footprints in a tidal breccia: Eubrontes giganteus from the Early Jurassic Mongisty tracksite of Aveyron, southern France

Abstract A recent excavation yielded 118 large tridactyl footprints in the Lower Jurassic Dolomitic Formation of the Causses Basin, at Mongisty in southern France. Most of the tracks are ascribed to

Hidden for one hundred years: a diverse theropod ichnoassemblage and cross-sectional tracks from the historic Early Jurassic Tsikoane ichnosite (Clarens Formation, northern Lesotho, southern Africa)

ABSTRACT The upper Stormberg Group of Lesotho has an abundant and diverse ichnological record that dates to the Early Jurassic. Herein, we re-evaluate a known ichnosite in the lowermost Clarens

Theropod Tridactyl Tracks Across the Triassic–Jurassic Boundary in Southern Africa: Implications for Pedal Morphology Evolution

The end-Triassic mass extinction events mark a pivotal period in archosaur history, and have been proposed to contribute to the rise and dominance of dinosaurs throughout the Mesozoic. In southern

Darting towards Storm Shelter: A minute dinosaur trackway from southern Africa

  • E. M. Bordy
  • Environmental Science, Geography
    South African Journal of Science
  • 2021
Theropod dinosaurs are considered the main terrestrial carnivores in the Jurassic and Cretaceous. Their rise to dominance has been linked to, among others, body size changes in their early history,

Large tridactyl dinosaur tracks from the Early Jurassic of southern Gondwana – uppermost Elliot Formation, Upper Moyeni, Lesotho

A new ichnosite in southwest Lesotho (Upper Moyeni; Quthing District) is located within the uppermost part of the highly fossiliferous Elliot Formation, ~35 m below the conformably overlying Clarens

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This new track site is the largest in number of footprints for theropods in Yunnan, and theropod body fossils found in the surrounding area turn out to be similar in body size to the projected size estimated from footprint lengths at the track site.

Shape variability in tridactyl dinosaur footprints: the significance of size and function

The functional anatomy of the hindlimb of bipedal dinosaurs has been intensively studied. Yet, surprisingly little work has been done concerning functional adaptation of digits for terrestrial



Type material of the type species of the classic theropod footprint genera Eubrontes, Anchisauripus, and Grallator (Early Jurassic, Hartford and Deerfield basins, Connecticut and Massachusetts, U.S.A.)

ABSTRACT The classic Early Jurassic age theropod footprints Eubrontes giganteus, Anchisauripus sillimani, and Grallator parallelus were established by Edward Hitchcock in 1836–1847 and are the type


Abstract Re-examination of the surviving specimens of Thecodontosaurus antiquus indicates that this plesiomorphic sauropodomorph can be diagnosed on the basis of elongate basipterygoid processes, a

Revision and re‐evaluation of the Early Jurassic dinosaurian ichnogenus Otozoum

Otozoum moodii Hitchcock, 1847 is one of the classic Connecticut Valley ichnotaxa established by Edward Hitchcock between 1836 and 1865. The taxon is redescribed, and AC 4/1a re‐established as the

Were some dinosaurs gregarious

A New Look at Morphological Variation in the Ichnogenus Anomoepus, with Special Reference to Material from the Lower Jurassic Newark Supergroup: Implications for Ichnotaxonomy and Ichnodiversity

ABSTRACT Numerous new trackways of the small, ornithischian dinosaurs ichnogenus Anomoepus were discovered in the Lower Jurassic (Hettangian) East Berlin Formation in Holyoke, Massachusetts. This new

The phylogeny of Tetanurae (Dinosauria: Theropoda)

An exhaustive examination of all basal tetanurans and all existing character data, taking advantage of recent discoveries and adding new morphological, temporal and geographic data achieved significantly improved phylogenetic resolution.

A new species of the primitive dinosaur Thecodontosaurus (Saurischia: Sauropodomorpha) and its implications for the systematics of early dinosaurs

Synopsis Juvenile sauropodomorph specimens from a Late Triassic/Early Jurassic fissure fill in Pant‐y‐ffynnon Quarry, South Wales are redescribed and named as a new species, Thecodontosaurus caducus.

Description and evolutionary significance of the sauropodomorph dinosaurs from the early Jurassic (Hettangian) McCoy Brook Formation.

  • T. Fedak
  • Geography, Environmental Science
  • 2007
A phylogenetic analysis of the holotype, which includes the first cranial material from the McCoy Brook Formation, and three other articulated specimens referred to Fendusaurus, place this new taxon within the terminal branches of Massospondylidae.

A new theropod dinosaur from the Early Jurassic of South Africa and its implications for the early evolution of theropods

It is now the majority view amongst theropod systematists that Ceratosauria contains Ceratosaurus spp.