Argentoconodon: Difference between revisions
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{{Short description|Extinct family of mammals}} |
{{Short description|Extinct family of mammals}} |
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| fossil_range = [[Early Jurassic]]<br />~{{fossil range|195|181}}<ref>http://fossilworks.org/bridge.pl?a=collectionSearch&taxon_no=39760&max_interval=Jurassic&country=Argentina&is_real_user=1&basic=yes&type=view&match_subgenera=1</ref> |
| fossil_range = [[Early Jurassic]]<br />~{{fossil range|195|181}}<ref>http://fossilworks.org/bridge.pl?a=collectionSearch&taxon_no=39760&max_interval=Jurassic&country=Argentina&is_real_user=1&basic=yes&type=view&match_subgenera=1{{full}}</ref> |
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| genus = Argentoconodon |
| genus = Argentoconodon |
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'''''Argentoconodon''''' (meaning "[[Argentina]] cone [[teeth|tooth]]") is an extinct [[genus]] of [[Theriimorpha|theriimorph]] [[mammal]] from the [[Cañadón Asfalto Formation]] of the [[Cañadón Asfalto Basin]] in [[Patagonia]]. When originally described, it was known only from a single molariform tooth, which possessed a combination of [[basal (phylogenetics)|primitive]] and [[Synapomorphy|derived]] features. The tooth is currently held in the [[Museo Paleontológico Egidio Feruglio]], where it was given the specimen number MPEF-PV 1877.<ref name="rougieretal2007">{{cite journal| |
'''''Argentoconodon''''' (meaning "[[Argentina]] cone [[teeth|tooth]]") is an extinct [[genus]] of [[Theriimorpha|theriimorph]] [[mammal]] from the [[Cañadón Asfalto Formation]] of the [[Cañadón Asfalto Basin]] in [[Patagonia]]. When originally described, it was known only from a single molariform tooth, which possessed a combination of [[basal (phylogenetics)|primitive]] and [[Synapomorphy|derived]] features. The tooth is currently held in the [[Museo Paleontológico Egidio Feruglio]], where it was given the specimen number MPEF-PV 1877.<ref name="rougieretal2007">{{cite journal |last1=Rougier |first1=Guillermo W. |last2=Garrido |first2=Alberto |last3=Gaetano |first3=Leandro |last4=Puerta |first4=Pablo |last5=Corbitt |first5=Cynthia |last6=Novacek |first6=Michael J. |title=First Jurassic triconodont from South America |journal=American Museum novitates |volume=17 |issue=3580 |date=2007 |hdl=2246/5873 |hdl-access=free }}</ref> New material described in 2011 show that ''Argentoconodon'' was similar to ''[[Ichthyoconodon]]'', ''[[Jugulator (mammal)|Jugulator]]'' and ''[[Volaticotherium]]'' within the family [[Triconodontidae]],<ref name="gaetano&rougier2011">{{cite journal |last1=Gaetano |first1=Leandro C. |last2=Rougier |first2=Guillermo W. |title=New materials of Argentoconodon fariasorum (Mammaliaformes, Triconodontidae) from the Jurassic of Argentina and its bearing on triconodont phylogeny |journal=Journal of Vertebrate Paleontology |date=July 2011 |volume=31 |issue=4 |pages=829–843 |doi=10.1080/02724634.2011.589877 }}</ref> and possibly also ''[[Triconolestes]]''.<ref>{{cite journal |last1=Averianov |first1=A. O. |last2=Lopatin |first2=A. V. |title=Phylogeny of triconodonts and symmetrodonts and the origin of extant mammals |journal=Doklady Biological Sciences |date=February 2011 |volume=436 |issue=1 |pages=32–35 |id={{ProQuest|854984818}} |doi=10.1134/S0012496611010042 }}</ref> |
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== Aerial locomotion == |
== Aerial locomotion == |
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Several postcranial similarities to ''[[Volaticotherium]]'' suggest that ''Argentoconodon'' was capable of gliding. In particular, its femur shares the same shape and proportions as its more complete relative, being highly specialised and without a femoral head, being less competent in rotational movement but more useful in extending the leg and resisting flight stresses.<ref name="gaetano&rougier2011"/> |
Several postcranial similarities to ''[[Volaticotherium]]'' suggest that ''Argentoconodon'' was capable of gliding. In particular, its femur shares the same shape and proportions as its more complete relative, being highly specialised and without a femoral head, being less competent in rotational movement but more useful in extending the leg and resisting flight stresses.<ref name="gaetano&rougier2011"/> |
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''Argentoconodon'''s spatio-temporal distribution has been noted as being unusual, in that it is not only a rare Early Jurassic eutriconodont, but also one of the only two [[South America]]n members of this group, the other being the slightly younger ''[[Condorodon]]''; other mammals in the [[Cañadon Asfalto Formation]] are various [[australosphenida]]ns and a putative [[allothere]].<ref> |
''Argentoconodon'''s spatio-temporal distribution has been noted as being unusual, in that it is not only a rare Early Jurassic eutriconodont, but also one of the only two [[South America]]n members of this group, the other being the slightly younger ''[[Condorodon]]''; other mammals in the [[Cañadon Asfalto Formation]] are various [[australosphenida]]ns and a putative [[allothere]].<ref>{{cite journal |last1=Gaetano |first1=Leandro C. |last2=Rougier |first2=Guillermo W. |title=First Amphilestid from South America: A Molariform from the Jurassic Cañadón Asfalto Formation, Patagonia, Argentina |journal=Journal of Mammalian Evolution |date=December 2012 |volume=19 |issue=4 |pages=235–248 |doi=10.1007/s10914-012-9194-1 }}</ref> This has been considered worthy of interest in the future.<ref>{{cite journal |first1=Percy M. |last1=Butler |first2=Denise |last2=Sigogneau-Russell |year=2016 |title=Diversity of triconodonts in the Middle Jurassic of Great Britain |journal=Palaeontologia Polonica |volume=67 |pages=35–65 |url=http://www.palaeontologia.pan.pl/PP67/Butler.pdf }}</ref> |
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== Diet == |
== Diet == |
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Like most eutriconodonts ''Argentoconodon'' was most likely animalivorous, its molars adapted to shear. In a study detailing Mesozoic mammal diets it ranks among carnivorous species.<ref>David M. |
Like most eutriconodonts ''Argentoconodon'' was most likely animalivorous, its molars adapted to shear. In a study detailing Mesozoic mammal diets it ranks among carnivorous species.<ref>{{cite journal |last1=Grossnickle |first1=David M. |last2=Polly |first2=P. David |title=Mammal disparity decreases during the Cretaceous angiosperm radiation |journal=Proceedings of the Royal Society B: Biological Sciences |date=2013-11-22 |volume=280 |issue=1771 |pages=20132110 |doi=10.1098/rspb.2013.2110 }}</ref> This is further corroborated by another study on Mesozoic mammal mandibles, where in plots among carnivorous rather than insectivorous taxa.<ref>{{cite journal |last1=Morales-García |first1=Nuria Melisa |last2=Gill |first2=Pamela G. |last3=Janis |first3=Christine M. |last4=Rayfield |first4=Emily J. |title=Jaw shape and mechanical advantage are indicative of diet in Mesozoic mammals |journal=Communications Biology |date=2021-02-23 |volume=4 |doi=10.1038/s42003-021-01757-3 |pmc=7902851 }}</ref> |
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== References == |
== References == |
Revision as of 22:07, 25 May 2021
Argentoconodon | |
---|---|
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | †Eutriconodonta |
Clade: | †Volaticotherini |
Genus: | †Argentoconodon Rougier et al. 2007 |
Species: | †A. fariasorum
|
Binomial name | |
†Argentoconodon fariasorum Rougier et al. 2007
|
Argentoconodon (meaning "Argentina cone tooth") is an extinct genus of theriimorph mammal from the Cañadón Asfalto Formation of the Cañadón Asfalto Basin in Patagonia. When originally described, it was known only from a single molariform tooth, which possessed a combination of primitive and derived features. The tooth is currently held in the Museo Paleontológico Egidio Feruglio, where it was given the specimen number MPEF-PV 1877.[2] New material described in 2011 show that Argentoconodon was similar to Ichthyoconodon, Jugulator and Volaticotherium within the family Triconodontidae,[3] and possibly also Triconolestes.[4]
Aerial locomotion
Several postcranial similarities to Volaticotherium suggest that Argentoconodon was capable of gliding. In particular, its femur shares the same shape and proportions as its more complete relative, being highly specialised and without a femoral head, being less competent in rotational movement but more useful in extending the leg and resisting flight stresses.[3]
Argentoconodon's spatio-temporal distribution has been noted as being unusual, in that it is not only a rare Early Jurassic eutriconodont, but also one of the only two South American members of this group, the other being the slightly younger Condorodon; other mammals in the Cañadon Asfalto Formation are various australosphenidans and a putative allothere.[5] This has been considered worthy of interest in the future.[6]
Diet
Like most eutriconodonts Argentoconodon was most likely animalivorous, its molars adapted to shear. In a study detailing Mesozoic mammal diets it ranks among carnivorous species.[7] This is further corroborated by another study on Mesozoic mammal mandibles, where in plots among carnivorous rather than insectivorous taxa.[8]
References
- ^ http://fossilworks.org/bridge.pl?a=collectionSearch&taxon_no=39760&max_interval=Jurassic&country=Argentina&is_real_user=1&basic=yes&type=view&match_subgenera=1[full citation needed]
- ^ Rougier, Guillermo W.; Garrido, Alberto; Gaetano, Leandro; Puerta, Pablo; Corbitt, Cynthia; Novacek, Michael J. (2007). "First Jurassic triconodont from South America". American Museum novitates. 17 (3580). hdl:2246/5873.
- ^ a b Gaetano, Leandro C.; Rougier, Guillermo W. (July 2011). "New materials of Argentoconodon fariasorum (Mammaliaformes, Triconodontidae) from the Jurassic of Argentina and its bearing on triconodont phylogeny". Journal of Vertebrate Paleontology. 31 (4): 829–843. doi:10.1080/02724634.2011.589877.
- ^ Averianov, A. O.; Lopatin, A. V. (February 2011). "Phylogeny of triconodonts and symmetrodonts and the origin of extant mammals". Doklady Biological Sciences. 436 (1): 32–35. doi:10.1134/S0012496611010042. ProQuest 854984818.
- ^ Gaetano, Leandro C.; Rougier, Guillermo W. (December 2012). "First Amphilestid from South America: A Molariform from the Jurassic Cañadón Asfalto Formation, Patagonia, Argentina". Journal of Mammalian Evolution. 19 (4): 235–248. doi:10.1007/s10914-012-9194-1.
- ^ Butler, Percy M.; Sigogneau-Russell, Denise (2016). "Diversity of triconodonts in the Middle Jurassic of Great Britain" (PDF). Palaeontologia Polonica. 67: 35–65.
- ^ Grossnickle, David M.; Polly, P. David (2013-11-22). "Mammal disparity decreases during the Cretaceous angiosperm radiation". Proceedings of the Royal Society B: Biological Sciences. 280 (1771): 20132110. doi:10.1098/rspb.2013.2110.
- ^ Morales-García, Nuria Melisa; Gill, Pamela G.; Janis, Christine M.; Rayfield, Emily J. (2021-02-23). "Jaw shape and mechanical advantage are indicative of diet in Mesozoic mammals". Communications Biology. 4. doi:10.1038/s42003-021-01757-3. PMC 7902851.
- Triconodonts
- Gliding animals
- Jurassic mammals of South America
- Jurassic Argentina
- Fossils of Argentina
- Cañadón Asfalto Formation
- Fossil taxa described in 2007
- Taxa named by Guillermo W. Rougier
- Taxa named by Alberto Garrido
- Taxa named by Leandro Gaetano
- Taxa named by Pablo F. Puerta
- Taxa named by Cynthia Corbitt
- Taxa named by Michael J. Novacek
- Prehistoric mammal genera
- Prehistoric mammal stubs
- Jurassic animal stubs