Hatcherichnus

Hatcherichnus
Trace fossil classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Pseudosuchia
Clade:	Crocodylomorpha
Order:	Crocodylia
Ichnogenus:	†Hatcherichnus; Foster and Lockley, 1997

Hatcherichnus is a trace fossil ichnogenus from the Upper Jurassic Morrison Formation of the US, the Lastres Formation of Spain, and the Snake Creek Tracksite of the Winton Formation. The type material is from the Salt Wash Member of the Morrison Formation in southeastern Utah, although the name is in honor of John Bell Hatcher, who illustrated a referred specimen from the Morrison of Garden Park, Colorado, in 1903. The type specimen consists of natural casts of the manus and pes, plus a tail trace, preserved in the roof of a uranium mine. These traces are believed to be those of swimming or floating neosuchian crocodyliforms.

References

↑ Avanzini, Marco; Piñuela, Laura; Ruiz-Omeñaca, J. Ignacio; Garcia-Ramos, Jose (June 2010). "The crocodyle track Hatcherichnus from the Upper Jurassic of Asturias (Spain)". N M Mus Nat Hist Sci Bull. 51 – via ResearchGate.
↑ Poropat, Stephen F.; White, Matt A.; Ziegler, Tim; Pentland, Adele H.; Rigby, Samantha L.; Duncan, Ruairidh J.; Sloan, Trish; Elliott, David A. (2021). "A diverse Late Cretaceous vertebrate tracksite from the Winton Formation of Queensland, Australia". PeerJ. 9 e11544. Bibcode:2021PeerJ...911544P. doi:10.7717/peerj.11544. ISSN 2167-8359. PMC 8216175. PMID 34178452.
1 2 Foster, John; Lockley, Martin (1997). "Probable crocodilian tracks and traces from the Morrison Formation (Upper Jurassic) of eastern Utah". Ichnos. 5 (2): 121–129. Bibcode:1997Ichno...5..121F. doi:10.1080/10420949709386411.

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[1] Avanzini, Marco; Piñuela, Laura; Ruiz-Omeñaca, J. Ignacio; Garcia-Ramos, Jose (June 2010). "The crocodyle track Hatcherichnus from the Upper Jurassic of Asturias (Spain)". N M Mus Nat Hist Sci Bull. 51 – via ResearchGate.

[2] Poropat, Stephen F.; White, Matt A.; Ziegler, Tim; Pentland, Adele H.; Rigby, Samantha L.; Duncan, Ruairidh J.; Sloan, Trish; Elliott, David A. (2021). "A diverse Late Cretaceous vertebrate tracksite from the Winton Formation of Queensland, Australia". PeerJ. 9 e11544. Bibcode:2021PeerJ...911544P. doi:10.7717/peerj.11544. ISSN 2167-8359. PMC 8216175. PMID 34178452.

[:0-3] 1 2 Foster, John; Lockley, Martin (1997). "Probable crocodilian tracks and traces from the Morrison Formation (Upper Jurassic) of eastern Utah". Ichnos. 5 (2): 121–129. Bibcode:1997Ichno...5..121F. doi:10.1080/10420949709386411.