| Revision as of 08:00, 15 October 2019 editEostrix (talk | contribs)Extended confirmed users22,120 edits Evgeny Kurochkin← Previous edit | Revision as of 08:01, 15 October 2019 edit undoEostrix (talk | contribs)Extended confirmed users22,120 edits Gareth J. DykeNext edit → | ||
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| * ''E. martinellii'' was described in 1972 from a left ] (lower leg bone) recovered from an escarpment above the southeastern bank of Cottonwood Creek in ] by Jorge Martinelli on a field trip in 1970 under the auspices of the University of Kansas. The strata was a Lysite member of the Wind River Formation. Martinelli was studying paleontology at the University of Barcelona. Paleontologists Larry D. Martin and ] from the ] named it in his honour. The smaller of the two species, it was similar in size to the living ] (''Asio otus''). Differences in the ] (grooves) of the lower end of the tarsometatarsus set it apart from living owls, namely a groove in the trochlea for digit 2, a deeper posterior groove in a relatively narrow trochlea for digit 3, and an unusually rounded trochlea for digit 4.<ref name=martinblack>{{cite journal|year=1972|title=A new owl from the Eocene of Wyoming|journal=Auk|volume=89|issue=4|pages=887–88|url=http://sora.unm.edu/sites/default/files/journals/auk/v089n04/p0887-p0888.pdf|accessdate=3 November 2010|doi=10.2307/4084122|last1=Martin|first1=Larry D.|last2=Black|first2=Craig C.}}</ref> | * ''E. martinellii'' was described in 1972 from a left ] (lower leg bone) recovered from an escarpment above the southeastern bank of Cottonwood Creek in ] by Jorge Martinelli on a field trip in 1970 under the auspices of the University of Kansas. The strata was a Lysite member of the Wind River Formation. Martinelli was studying paleontology at the University of Barcelona. Paleontologists Larry D. Martin and ] from the ] named it in his honour. The smaller of the two species, it was similar in size to the living ] (''Asio otus''). Differences in the ] (grooves) of the lower end of the tarsometatarsus set it apart from living owls, namely a groove in the trochlea for digit 2, a deeper posterior groove in a relatively narrow trochlea for digit 3, and an unusually rounded trochlea for digit 4.<ref name=martinblack>{{cite journal|year=1972|title=A new owl from the Eocene of Wyoming|journal=Auk|volume=89|issue=4|pages=887–88|url=http://sora.unm.edu/sites/default/files/journals/auk/v089n04/p0887-p0888.pdf|accessdate=3 November 2010|doi=10.2307/4084122|last1=Martin|first1=Larry D.|last2=Black|first2=Craig C.}}</ref> | ||
| * ''E. vincenti'' described in 1980 by ] from early Eocene strata in England, using ] and proximal ] bones.<ref>Harrison, C. J. O. "A small owl from the Lower Eocene of Britain." Tertiary Research 3 (1980): 83-87.</ref> Some scholars think Vincenti resembles '']'' more than ''Eostrix''.<ref>https://books.google.com/books?id=P_TB72RBLLMC&pg=PA164&dq=Eostrix&hl=en&sa=X&ved=2ahUKEwjIpaGn1p3lAhWETd8KHaAKDFsQ6AEwAHoECAYQAg#v=onepage&q=Eostrix&f=false</ref> | * ''E. vincenti'' described in 1980 by ] from early Eocene strata in England, using ] and proximal ] bones.<ref>Harrison, C. J. O. "A small owl from the Lower Eocene of Britain." Tertiary Research 3 (1980): 83-87.</ref> Some scholars think Vincenti resembles '']'' more than ''Eostrix''.<ref>https://books.google.com/books?id=P_TB72RBLLMC&pg=PA164&dq=Eostrix&hl=en&sa=X&ved=2ahUKEwjIpaGn1p3lAhWETd8KHaAKDFsQ6AEwAHoECAYQAg#v=onepage&q=Eostrix&f=false</ref> | ||
| * ''E. tsaganica'' described in 2011 by ] and Dyke, found in Mongolia.<ref>Kurochkin, E. N., & Dyke, G. J. (2011). The first fossil owls (Aves: Strigiformes) from the Paleogene of Asia and a review of the fossil record of Strigiformes. Paleontological Journal, 45(4), 445–458. doi:10.1134/s003103011104006x</ref> | * ''E. tsaganica'' described in 2011 by ] and ], found in Mongolia.<ref>Kurochkin, E. N., & Dyke, G. J. (2011). The first fossil owls (Aves: Strigiformes) from the Paleogene of Asia and a review of the fossil record of Strigiformes. Paleontological Journal, 45(4), 445–458. doi:10.1134/s003103011104006x</ref> | ||
| ==References==<!-- AmMusNovit2773:1. Auk89:887,99:576. Palaeontology37:339. --> | ==References==<!-- AmMusNovit2773:1. Auk89:887,99:576. Palaeontology37:339. --> | ||
Revision as of 08:01, 15 October 2019
| Eostrix Temporal range: early Eocene PreꞒ Ꞓ O S D C P T J K Pg N | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Strigiformes |
| Family: | †Protostrigidae |
| Genus: | †Eostrix Brodkorb, 1971 |
| Species | |
|
E. mimica (Wetmore, 1938) | |
Eostrix is a genus of extinct primitive owls in the family Protostrigidae, along with Oligostrix and Minerva. These owls date from early Eocene of Wyoming,the London Clay of England, and Mongolia. They have been described from fossil remains. The genus was created by Pierce Brodkorb in 1971 to place a fossil species known until that time as Protostrix mimica.
The following species are recognised:
- E. mimica described in 1938 by Alexander Wetmore using hindlimb elements in Eocene strata in Wyoming.
- E. martinellii was described in 1972 from a left tarsometatarsus (lower leg bone) recovered from an escarpment above the southeastern bank of Cottonwood Creek in Fremont County, Wyoming by Jorge Martinelli on a field trip in 1970 under the auspices of the University of Kansas. The strata was a Lysite member of the Wind River Formation. Martinelli was studying paleontology at the University of Barcelona. Paleontologists Larry D. Martin and Craig Call Black from the University of Kansas Natural History Museum named it in his honour. The smaller of the two species, it was similar in size to the living long-eared owl (Asio otus). Differences in the trochleas (grooves) of the lower end of the tarsometatarsus set it apart from living owls, namely a groove in the trochlea for digit 2, a deeper posterior groove in a relatively narrow trochlea for digit 3, and an unusually rounded trochlea for digit 4.
- E. vincenti described in 1980 by Colin Harrison from early Eocene strata in England, using pedal phalanx and proximal tarsometatarsus bones. Some scholars think Vincenti resembles Necrobyas more than Eostrix.
- E. tsaganica described in 2011 by Evgeny Kurochkin and Gareth J. Dyke, found in Mongolia.
References
- https://books.google.com/books?id=P_TB72RBLLMC&pg=PA164&dq=Eostrix&hl=en&sa=X&ved=2ahUKEwjIpaGn1p3lAhWETd8KHaAKDFsQ6AEwAHoECAYQAg#v=onepage&q=Eostrix&f=false
- https://books.google.com/books?id=P_TB72RBLLMC&pg=PA164&dq=Eostrix&hl=en&sa=X&ved=2ahUKEwjIpaGn1p3lAhWETd8KHaAKDFsQ6AEwAHoECAYQAg#v=onepage&q=Eostrix&f=false
- Martin, Larry D.; Black, Craig C. (1972). "A new owl from the Eocene of Wyoming" (PDF). Auk. 89 (4): 887–88. doi:10.2307/4084122. Retrieved 3 November 2010.
- Harrison, C. J. O. "A small owl from the Lower Eocene of Britain." Tertiary Research 3 (1980): 83-87.
- https://books.google.com/books?id=P_TB72RBLLMC&pg=PA164&dq=Eostrix&hl=en&sa=X&ved=2ahUKEwjIpaGn1p3lAhWETd8KHaAKDFsQ6AEwAHoECAYQAg#v=onepage&q=Eostrix&f=false
- Kurochkin, E. N., & Dyke, G. J. (2011). The first fossil owls (Aves: Strigiformes) from the Paleogene of Asia and a review of the fossil record of Strigiformes. Paleontological Journal, 45(4), 445–458. doi:10.1134/s003103011104006x
Further reading
- Mayr, G. Paleogene Fossil Birds. Springer, 2009. p. 164.
| Taxon identifiers | |
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| Eostrix | |
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