Article: A new anguimorph lizard from the Jurassic and Lower Cretaceous of England
A new genus of anguimorph lizard Parviraptor (type species P. estesi sp. nov.) has been identified from middle Jurassic (Bathonian), and late Jurassic (Tithonian) or early Cretaceous (Berriasian) sites in England. The genus is also represented in the late Jurassic of Portugal (Oxfordian or Kimmeridgian, Guimarota). Parviraptor differs markedly from the only previously recorded Jurassic anguimorph, Dorsetisaurus, and shares a complex of characters which suggests that it was a stem-platynotan, and that the 'Platynota' had differentiated by the middle Jurassic.