Macrospondylus

Source: Wikipedia, the free encyclopedia.

Macrospondylus
Temporal range:
Ma
↓
Macrospondylus bollensis, Holzmaden Germany
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Archosauria
Clade: Pseudosuchia
Clade: Crocodylomorpha
Clade: Crocodyliformes
Suborder: †Thalattosuchia
Superfamily: †Teleosauroidea
Family: †Machimosauridae
Genus: †Macrospondylus
von Meyer, 1831
Species:
†M. bollensis
Binomial name
†Macrospondylus bollensis
Jäger, 1828
Synonyms
  • Crocodilus bollensis (Jäger, 1828)
  • Teleosaurus mandelsohi Bronn, 1841
  • Cuvier
    , 1824)

Macrospondylus is an

crocodyliform from the Early Jurassic (Toarcian) of Europe. Fossils are known from the Posidonia Shale of Germany, the Whitby Mudstone of the United Kingdom, and the "schistes bitumineux
" of Luxembourg.

Evolutionary relationships

Restoration

Macrospondylus has historically been synonymized with

phylogenetic analysis of Thalattosuchia, however, did not support the monophyly of Steneosaurus, as the genera Machimosaurus and Teleosaurus both fell within Steneosaurus.[2] Reinforcing the paraphyly of Steneosaurus, Young et al. (2012), Ősi et al. (2018), and Wilberg et al. (2019) recovered Steneosaurus bollensis and other Steneosaurus species in disparate positions within Teleosauridae.[3][4][5]

In 2016, its length was estimated at 5.5 m (18 ft), making it the largest known Early Jurassic crocodylomorph.[6] In 2020, the genus was formally revived.[7]

See also

References

  1. ^ Steel R. 1973. Crocodylia. Handbuch der Paläoherpetologie, Teil 16. Stuttgart: Gustav Fischer Verlag,116 pp.
  2. ^ Mueller-Töwe, I. J. (2005). "Phylogenetic relationships of the Thalattosuchia" (PDF). Zitteliana. A45: 211–213.
  3. PMID 23028723
    . edit
  4. ^ Ősi A, Young MT, Galácz A, Rabi M. 2018. A new large-bodied thalattosuchian crocodyliform from the Lower Jurassic (Toarcian) of Hungary, with further evidence of the mosaic acquisition of marine adaptations in Metriorhynchoidea. PeerJ 6:e4668 https://doi.org/10.7717/peerj.4668
  5. PMID 30679529
    .
  6. doi:10.26879/648
    .
  7. PMID 33083104
    .
Retrieved from "https://en.wikipedia.org/w/index.php?title=Macrospondylus&oldid=1142398659"