| Iharkutosuchus Temporal range: Late Cretaceous: Santonian,
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|---|---|
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| Holotype skull | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Archosauria |
| Clade: | Pseudosuchia |
| Clade: | Crocodylomorpha |
| Clade: | Crocodyliformes |
| Clade: | Metasuchia |
| Clade: | Neosuchia |
| Clade: | Eusuchia |
| Family: | †Hylaeochampsidae |
| Genus: | †Iharkutosuchus Ősi et al., 2007 |
| Type species | |
| †Iharkutosuchus makadii Ősi et al., 2007
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Iharkutosuchus ("Iharkút crocodile", after where it was found) is an extinct genus of basal eusuchian crocodyliform. Its fossils have been found in the Santonian-age Upper Cretaceous Csehbánya Formation in the Bakony Mountains of western Hungary.[2]
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Transcription
Description
It is based on MTM 2006.52.1, a nearly complete skull, and several other partial skulls, isolated skull bones, and numerous teeth are also known. Iharkutosuchus was a small crocodyliform (skull length 11.1 centimetres (4.4 in), estimated body length 0.8 metres (2.6 ft)). Its skull was low, and the snout was short. Iharkutosuchus is unusual in its heterodonty: some of its teeth were complex and multicusped, like mammal teeth. The structure of the skull indicates that it could grind food with a mobile lower jaw, and together with the teeth suggest a diet of fibrous plant material.[2][3]
Classification
The genus was described in 2007 by Attila Ősi and colleagues. The type species is I. makadii, named for László Makádi.[2] A 2011 phylogenetic study recovered Iharkutosuchus as a member of Hylaeochampsidae, a group of basal eusuchians, as shown in the cladogram below.[4]
References
- ^ Rio, Jonathan P.; Mannion, Philip D. (6 September 2021). "Phylogenetic analysis of a new morphological dataset elucidates the evolutionary history of Crocodylia and resolves the long-standing gharial problem". PeerJ. 9: e12094. doi:10.7717/peerj.12094. PMC 8428266. PMID 34567843.
- ^ a b c Ősi, Attila; Clark, James M.; Weishampel, David B. (2007). "First report on a new eusuchian crocodyliform with multicusped teeth from the Upper Cretaceous (Santonian) of Hungary". Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 243 (2): 169–177. doi:10.1127/0077-7749/2007/0243-0169.
- ^ Ősi, Attila; Weishampel, David B. (2009). "Jaw mechanism and dental function in the Late Cretaceous basal eusuchian Iharkutosuchus". Journal of Morphology. 270 (8): 903–920. doi:10.1002/jmor.10726. PMID 19206154.
- ^ Buscalioni, A.D.; Piras, P.; Vullo, R.; Signore, M.; Barbera, C. (2011). "Early eusuchia crocodylomorpha from the vertebrate-rich Plattenkalk of Pietraroia (Lower Albian, southern Apennines, Italy)". Zoological Journal of the Linnean Society. 163: S199–S227. doi:10.1111/j.1096-3642.2011.00718.x.
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This page was last edited on 20 April 2024, at 11:56