Macrospondylus

Macrospondylus; Temporal range: Toarcian 183–180 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
	Macrospondylus bollensis, Holzmaden Germany
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Archosauria
Clade:	Pseudosuchia
Clade:	Crocodylomorpha
Clade:	Crocodyliformes
Suborder:	†Thalattosuchia
Superfamily:	†Teleosauroidea
Genus:	†Steneosaurus; von Meyer, 1830
Species
	M. bollensis (Jaeger, 1828) (type);
Synonyms
	Mystriosaurus Munster, 1834;

Macrospondylus is an extinct genus of teleosaurid crocodyliform from the Early Jurassic (Toarcian) of Europe.

Evolutionary relationships

Macrospondylus has historically been synonymized with Steneosaurus.Cite error: There are <ref> tags on this page without content in them (see the help page). A 2005 phylogenetic analysis of Thalattosuchia, however, did not support the monophyly of Steneosaurus, as the genera Machimosaurus and Teleosaurus both fell within Steneosaurus.^[1] 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.^[2]^[3]^[4]

References

^ Mueller-Töwe, I. J. (2005). "Phylogenetic relationships of the Thalattosuchia" (PDF). Zitteliana. A45: 211–213.
^ Young, M. T.; Brusatte, S. L.; De Andrade, M. B.; Desojo, J. B.; Beatty, B. L.; Steel, L.; Fernández, M. S.; Sakamoto, M.; Ruiz-Omeñaca, J. I.; Schoch, R. R. (2012). Butler, Richard J, ed. "The Cranial Osteology and Feeding Ecology of the Metriorhynchid Crocodylomorph Genera Dakosaurus and Plesiosuchus from the Late Jurassic of Europe". PLoS ONE 7 (9): e44985. doi:10.1371/journal.pone.0044985. PMC 3445579. PMID 23028723. edit
^ 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
^ Eric W. Wilberg; Alan H. Turner; Christopher A. Brochu (2019). "Evolutionary structure and timing of major habitat shifts in Crocodylomorpha". Scientific Reports. 9 (1): Article number 514. doi:10.1038/s41598-018-36795-1. PMC 6346023. PMID 30679529.

[Mueller-Töwe,_2005-1] Mueller-Töwe, I. J. (2005). "Phylogenetic relationships of the Thalattosuchia" (PDF). Zitteliana. A45: 211–213.

[2] Young, M. T.; Brusatte, S. L.; De Andrade, M. B.; Desojo, J. B.; Beatty, B. L.; Steel, L.; Fernández, M. S.; Sakamoto, M.; Ruiz-Omeñaca, J. I.; Schoch, R. R. (2012). Butler, Richard J, ed. "The Cranial Osteology and Feeding Ecology of the Metriorhynchid Crocodylomorph Genera Dakosaurus and Plesiosuchus from the Late Jurassic of Europe". PLoS ONE 7 (9): e44985. doi:10.1371/journal.pone.0044985. PMC 3445579. PMID 23028723. edit

[3] 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

[4] Eric W. Wilberg; Alan H. Turner; Christopher A. Brochu (2019). "Evolutionary structure and timing of major habitat shifts in Crocodylomorpha". Scientific Reports. 9 (1): Article number 514. doi:10.1038/s41598-018-36795-1. PMC 6346023. PMID 30679529.

[1]

[2]

[3]

[4]

Evolutionary relationships

See also

References