Turtle-jawed moa-nalo: Difference between revisions
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{{Short description|Extinct species of bird}} |
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{{speciesbox |
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{{pp-pc1}} |
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| status= fossil |
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{{Speciesbox |
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| name = Turtle-jawed moa-nalo |
| name = Turtle-jawed moa-nalo |
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| fossil_range = {{fossil range|Holocene}} |
| fossil_range = {{fossil range|Holocene}} |
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| image = |
| image = Chelychelynechen quassus.jpg |
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| image_caption = Reconstruction of species’ appearance |
| image_caption = Reconstruction of species’ appearance by [[Julian P. Hume]] |
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| genus = Chelychelynechen |
| genus = Chelychelynechen |
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| parent_authority = [[Storrs L. Olson|Olson]] & [[Helen Frances James|James]], 1991<ref name=OM45>{{cite journal |author= |
| parent_authority = [[Storrs L. Olson|Olson]] & [[Helen Frances James|James]], 1991<ref name=OM45>{{cite journal |author=Olson, Storrs L. |author-link=Storrs Olson |author2=James, Helen F. |author2-link=Helen James |year=1991 |title=Descriptions of thirty-two new species of birds from the Hawaiian Islands: Part I. Non-Passeriformes |journal=Ornithological Monographs |volume=45 |issue=45 |pages=32–35 |url=http://si-pddr.si.edu/jspui/bitstream/10088/1745/2/VZ_234_New_Hawaiian_non-passer.pdf |doi=10.2307/40166794 |jstor=40166794 }}{{Dead link|date=January 2024 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> |
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| species = quassus |
| species = quassus |
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| authority = Olson & James 1991 |
| authority = Olson & James 1991 |
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}} |
}} |
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The '''turtle-jawed moa-nalo''' (''Chelychelynechen quassus''), also formerly referred to as the '''large Kauai goose''', is a species of [[moa-nalo]] |
The '''turtle-jawed moa-nalo''' ('''''Chelychelynechen quassus'''''), also formerly referred to as the '''large Kauai goose''', is a species of [[moa-nalo]] (a group of [[extinction|extinct]], [[Flightless bird|flightless]], large goose-like [[duck]]s), which [[evolution|evolved]] in the [[Hawaiian Islands]] of the [[Pacific Ocean|North Pacific Ocean]]. It was described in 1991 from [[subfossil]] material collected in 1976 by [[Storrs L. Olson|Storrs Olson]] from the [[calcareous]] [[Kaumakani, Hawaii|Makawehi]] [[dune]]s on the south-eastern coast of the island of [[Kauai]].<ref name=OM45/> Its remains have also been found at the nearby [[Makauwahi Cave]] site.<ref>{{cite web |url= http://www.livescience.com/history/081025-hawaii-cave.html |title= Hawaiian Cave Reveals Ancient Secrets |access-date= 3 March 2010 |work= David A. Burney and Lida Pigott Burney |publisher= Live Science |date= 25 October 2008}}</ref> |
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==Taxonomy== |
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The generic name ''Chelychelynechen'' comes from the [[Greek language|Greek]] ''chelys'' (“turtle”), ''chelyne'' (“lip” or “jaw”), with ''chen'' (“goose”), referring to the distinctly [[turtle]]-like appearance and structure of the [[beak]]. The specific [[epithet]] is from the [[Latin]] ''quassus'' (“broken” or “shattered”), alluding to the fragmentary condition of the [[Type (biology)|type material]].<ref name=OM45/> |
The generic name ''Chelychelynechen'' comes from the [[Greek language|Greek]] ''chelys'' (“turtle”), ''chelyne'' (“lip” or “jaw”), with ''chen'' (“goose”), referring to the distinctly [[turtle]]-like appearance and structure of the [[beak]]. The specific [[epithet]] is from the [[Latin]] ''quassus'' (“broken” or “shattered”), alluding to the fragmentary condition of the [[Type (biology)|type material]].<ref name=OM45/> It is [[Monotypic taxon|monotypic]] in the genus ''Chelychelynechen.'' |
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==Description== |
==Description== |
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Apart from the head, the bird was similar to other moa-nalo species, with robust legs and reduced, non-functional wings. The main distinguishing feature was the remarkable beak which had a [[Rostrum (anatomy)|rostrum]] almost as high as it was long, with a broad [[Palate (bones)|palatal]] surface, and with [[nostril]]s oriented almost vertically rather than horizontally. The structure of this feeding apparatus appears [[Convergent evolution|convergent]] on that of [[tortoise]]s and indicates adaptation to a diet of plants.<ref name=OM45/> |
Apart from the head, the bird was similar to other moa-nalo species, with robust legs and reduced, non-functional wings. The main distinguishing feature was the remarkable beak which had a [[Rostrum (anatomy)|rostrum]] almost as high as it was long, with a broad [[Palate (bones)|palatal]] surface, and with [[nostril]]s oriented almost vertically rather than horizontally. The structure of this feeding apparatus appears [[Convergent evolution|convergent]] on that of [[tortoise]]s and indicates adaptation to a diet of plants.<ref name=OM45/> |
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[[File:ChelychelynechenBunt.jpg|thumb|left|Speculative reconstruction of head]] |
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==References== |
==References== |
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{{Reflist}} |
{{Reflist}} |
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{{Odontoanserae|B.|state=collapsed}} |
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{{Taxonbar|from=Q15707881}} |
{{Taxonbar|from=Q15707881}} |
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{{DEFAULTSORT:moa-nalo, turtle-jawed}} |
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[[Category:Anatidae]] |
[[Category:Anatidae]] |
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[[Category:Late Quaternary prehistoric birds]] |
[[Category:Late Quaternary prehistoric birds]] |
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[[Category:Fossil taxa described in 1991|turtle-jawed moa-nalo]] |
[[Category:Fossil taxa described in 1991|turtle-jawed moa-nalo]] |
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[[Category:Birds described in 1991|turtle-jawed moa-nalo]] |
[[Category:Birds described in 1991|turtle-jawed moa-nalo]] |
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[[Category:Taxa named by Helen F. James|turtle-jawed moa-nalo]] |
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Latest revision as of 16:45, 12 January 2024
| Turtle-jawed moa-nalo Temporal range:
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|---|---|
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| Reconstruction of species’ appearance by Julian P. Hume | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Anseriformes |
| Family: | Anatidae |
| Genus: | †Chelychelynechen Olson & James, 1991[1] |
| Species: | †C. quassus
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| Binomial name | |
| †Chelychelynechen quassus Olson & James 1991
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The turtle-jawed moa-nalo (Chelychelynechen quassus), also formerly referred to as the large Kauai goose, is a species of moa-nalo (a group of extinct, flightless, large goose-like ducks), which evolved in the Hawaiian Islands of the North Pacific Ocean. It was described in 1991 from subfossil material collected in 1976 by Storrs Olson from the calcareous Makawehi dunes on the south-eastern coast of the island of Kauai.[1] Its remains have also been found at the nearby Makauwahi Cave site.[2]
Taxonomy
[edit]The generic name Chelychelynechen comes from the Greek chelys (“turtle”), chelyne (“lip” or “jaw”), with chen (“goose”), referring to the distinctly turtle-like appearance and structure of the beak. The specific epithet is from the Latin quassus (“broken” or “shattered”), alluding to the fragmentary condition of the type material.[1] It is monotypic in the genus Chelychelynechen.
Description
[edit]Apart from the head, the bird was similar to other moa-nalo species, with robust legs and reduced, non-functional wings. The main distinguishing feature was the remarkable beak which had a rostrum almost as high as it was long, with a broad palatal surface, and with nostrils oriented almost vertically rather than horizontally. The structure of this feeding apparatus appears convergent on that of tortoises and indicates adaptation to a diet of plants.[1]
References
[edit]- ^ a b c d Olson, Storrs L.; James, Helen F. (1991). "Descriptions of thirty-two new species of birds from the Hawaiian Islands: Part I. Non-Passeriformes" (PDF). Ornithological Monographs. 45 (45): 32–35. doi:10.2307/40166794. JSTOR 40166794.[permanent dead link]
- ^ "Hawaiian Cave Reveals Ancient Secrets". David A. Burney and Lida Pigott Burney. Live Science. 25 October 2008. Retrieved 3 March 2010.
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