Groebertherium: Difference between revisions
Content deleted Content added
No edit summary |
Animalparty (talk | contribs) citation formatting |
||
| Line 12: | Line 12: | ||
}} |
}} |
||
'''''Groebertherium''''' is a genus of [[dryolestoid]] mammal from the [[Late Cretaceous]] of [[Argentina]]. It isn't closely related to other contemporary dryolestoids, all of which being part of [[Meridiolestida]], making it a [[living fossil]] within this group.<ref>Harper |
'''''Groebertherium''''' is a genus of [[dryolestoid]] mammal from the [[Late Cretaceous]] of [[Argentina]]. It isn't closely related to other contemporary dryolestoids, all of which being part of [[Meridiolestida]], making it a [[living fossil]] within this group.<ref name="Harper et al 2018">{{cite journal |last1=Harper |first1=Tony |last2=Parras |first2=Ana |last3=Rougier |first3=Guillermo W. |title=Reigitherium (Meridiolestida, Mesungulatoidea) an Enigmatic Late Cretaceous Mammal from Patagonia, Argentina: Morphology, Affinities, and Dental Evolution |journal=Journal of Mammalian Evolution |date=2018 |doi=10.1007/s10914-018-9437-x}}</ref><ref name="Rougier et al 2011">{{cite journal |last1=Rougier |first1=Guillermo W. |last2=Apesteguía |first2=Sebastián |last3=Gaetano |first3=Leandro C. |title=Highly specialized mammalian skulls from the Late Cretaceous of South America |journal=Nature |date=2011 |volume=479 |issue=7371 |pages=98–102 |doi=10.1038/nature10591}}</ref> |
||
==Classification== |
==Classification== |
||
''Groebertherium'' has been consistently recovered as a [[dryolestoid]] within [[Dryolestida]] and outside of [[Meridiolestida]], though its exact positioning varies among several studies. Rougier 2011, for example, recovers it was a member of [[Dryolestidae]], rendering it a relictual survivor of this clade with a gap of 40 million years in relation to the youngest northern dryolestids,<ref |
''Groebertherium'' has been consistently recovered as a [[dryolestoid]] within [[Dryolestida]] and outside of [[Meridiolestida]], though its exact positioning varies among several studies. Rougier 2011, for example, recovers it was a member of [[Dryolestidae]], rendering it a relictual survivor of this clade with a gap of 40 million years in relation to the youngest northern dryolestids,<ref name="Rougier et al 2011"/> while Rougier 2018 recovers it was slightly closer to Meridiolestida than to northern dryolestoids.<ref name="Harper et al 2018"/> |
||
==Palaeobiology== |
==Palaeobiology== |
||
Unlike meridiolestidans, it retains a parastylar hook on its molariform teeth. Therefore, it was likely less specialised to transverse (side-to-side) mastication.<ref |
Unlike meridiolestidans, it retains a parastylar hook on its molariform teeth. Therefore, it was likely less specialised to transverse (side-to-side) mastication.<ref name="Harper et al 2018"/><ref name="Rougier et al 2011"/> It was rather similar to ''[[Dryolestes]]'', indicating a similar [[tenrec]] or [[hedgehog]]-like lifestyle.<ref name="Rougier et al 2011"/> |
||
==References== |
==References== |
||
Revision as of 18:17, 10 November 2018
| Groebertherium | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Clade: | Cladotheria |
| Superorder: | †Dryolestoidea |
| Order: | †Dryolestida |
| Genus: | †Groebertherium Bonaparte, 1986 |
| Type species | |
| Groebertherium stipanicici Bonaparte 1986
| |
Groebertherium is a genus of dryolestoid mammal from the Late Cretaceous of Argentina. It isn't closely related to other contemporary dryolestoids, all of which being part of Meridiolestida, making it a living fossil within this group.[1][2]
Classification
Groebertherium has been consistently recovered as a dryolestoid within Dryolestida and outside of Meridiolestida, though its exact positioning varies among several studies. Rougier 2011, for example, recovers it was a member of Dryolestidae, rendering it a relictual survivor of this clade with a gap of 40 million years in relation to the youngest northern dryolestids,[2] while Rougier 2018 recovers it was slightly closer to Meridiolestida than to northern dryolestoids.[1]
Palaeobiology
Unlike meridiolestidans, it retains a parastylar hook on its molariform teeth. Therefore, it was likely less specialised to transverse (side-to-side) mastication.[1][2] It was rather similar to Dryolestes, indicating a similar tenrec or hedgehog-like lifestyle.[2]
References
- ^ a b c Harper, Tony; Parras, Ana; Rougier, Guillermo W. (2018). "Reigitherium (Meridiolestida, Mesungulatoidea) an Enigmatic Late Cretaceous Mammal from Patagonia, Argentina: Morphology, Affinities, and Dental Evolution". Journal of Mammalian Evolution. doi:10.1007/s10914-018-9437-x.
- ^ a b c d Rougier, Guillermo W.; Apesteguía, Sebastián; Gaetano, Leandro C. (2011). "Highly specialized mammalian skulls from the Late Cretaceous of South America". Nature. 479 (7371): 98–102. doi:10.1038/nature10591.