Newtonsaurus

Newtonsaurus
Temporal range: Late Triassic
(Rhaetian),
Photogrammetric 3D reconstruction of the holotype dentary, in medial (A), lateral (B) and top-down (C) views
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Dinosauria
Clade: Saurischia
Clade: Theropoda
Clade: Neotheropoda
Genus: Newtonsaurus
Evans et al., 2025
Species:
N. cambrensis
Binomial name
Newtonsaurus cambrensis
(Newton, 1899)
Synonyms
  • Zanclodon cambrensis
    Newton, 1899
  • ?Megalosaurus cambrensis
    (Newton, 1899) Molnar, 1990 comb. nov.

Newtonsaurus is an extinct genus of possibly coelophysoid theropod dinosaur from the Late Triassic (Rhaetian) Lilstock Formation of South Wales, Great Britain. The genus contains a single species, Newtonsaurus cambrensis, originally named as a species of Zanclodon, known from an external mould of the front half of a lower jaw. With an estimated total length of 5–7 metres (16–23 ft), it is suggested to have been one of the largest theropods known from the Triassic.