Lariosaurus

Lariosaurus
Temporal range: Anisian-Carnian, 247.2–235 Ma
Lariosaurus balsami
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Sauropterygia
Order: Nothosauroidea
Family: Nothosauridae
Subfamily: Lariosaurinae
Genus: Lariosaurus
Curioni, 1847
Species
  • L. balsami Curioni, 1847 (type)
  • L. buzzii? Tschanz, 1989
  • L. curionii Rieppel, 1998
  • L. hongguoensis Jiang et al., 2006
  • L. juvenilis Edinger, 1921
  • L. stensioi (Haas, 1963) Rieppel, Mazin & Tchernov, 1999
  • L. valceresii Tintori & Renesto, 1990
  • L. vosseveldensis Klein et al., 2016
  • L. winkelhorsti Klein & Albers, 2004
  • L. xingyiensis Li, Liu & Rieppel, 2002
  • L. youngi Li & Rieppel, 2004
Synonyms
Genus synonymy
  • Deirosaurus
    Owen, 1854 (nomen dubium)
  • Eupodosaurus
    Boulenger, 1891
  • Macromerosaurus
    Curioni, 1847 emend. Curioni, 1854
  • Phygosaurus
    Arthaber, 1924
  • Rhaticonia
    Broili, 1927
  • Micronothosaurus
    Haas, 1963
Species synonymy
  • Micronothosaurus stensioi
    Haas, 1963
  • Nothosaurus juvenilis Edinger, 1921
  • Nothosaurus youngi Li & Rieppel, 2004
  • Nothosaurus winkelhorsti Klein & Albers, 2004 Synonyms of L. balsami:
  • Deirosaurus italicus
    Owen, 1854 (nomen dubium)
  • Eupodosaurus longobardicus
    Boulenger, 1891
  • Lariosaurus lavizzarii
    Kuhn-Schynder, 1987 (nomen dubium)
  • Macromerosaurus plinii
    Curioni, 1847 emend. Curioni, 1854
  • Phygosaurus balsami
    Arthaber, 1924 (not Curioni, 1847)
  • Proneusticosaurus carinthiacus
    Arthaber, 1924
  • Rhaticonia rothpletzi
    Broili, 1927

Lariosaurus is an extinct genus of nothosaurid from the Middle Triassic (late Anisian to late Ladinian stage) of central and western Europe and China. With a complete specimen of L. xingyiensis measuring 70.5 cm (2.3 ft) long and L. hongguoensis possibly measuring up to 80 cm (2.6 ft) long,[1][2] it was one of the smallest known nothosaurs. First discovered at Perledo on the Lake Como in 1830, it was named in 1847 by Curioni, its name meaning "Lizard from Larius", the ancient name of the lake. This makes it one of the earliest studied reptiles from the Alps. It is known from an almost complete skeleton holotype and several other fairly complete fossils.

The nothosaur Eupodosaurus, initially classified as a stegosaurian dinosaur, is now considered synonymous with Lariosaurus. In 1998 Rieppel synonymised Lariosaurus, Silvestrosaurus and Ceresiosaurus, but this is disputed by many authors and they are usually considered close relatives.[3]

  1. ^ Wen-Bin Lin; Da-Yong Jiang; Olivier Rieppel; Ryosuke Motani; Cheng Ji; Andrea Tintori; Zuo-Yu Sun; Min Zhou (2017). "A new specimen of Lariosaurus xingyiensis (Reptilia, Sauropterygia) from the Ladinian (Middle Triassic) Zhuganpo Member, Falang Formation, Guizhou, China". Journal of Vertebrate Paleontology. 37 (2). e1278703. doi:10.1080/02724634.2017.1278703.
  2. ^ Qiyue Zhang; Wen Wen; Shixue Hu; Michael J. Benton; Changyong Zhou; Tao Xie; Tao Lü; Jinyuan Huang; Brian Choo; Zhong-Qiang Chen; Jun Liu; Qican Zhang (2014). "Nothosaur foraging tracks from the Middle Triassic of southwestern China". Nature Communications. 5. 3973. doi:10.1038/ncomms4973.
  3. ^ Rieppel, Olivier (1998). The status of the sauropterygian reptile genera Ceresiosaurus, Lariosaurus, and Silvestrosaurus from the Middle Triassic of Europe. University of Illinois Urbana-Champaign. Chicago, Ill. : Field Museum of Natural History.