Dolichochampsa is an extinct genus of eusuchian crocodylomorph. It is the type genus and only member of the family Dolichochampsidae.[1] Fossils have been found in the Yacoraite Formation of Argentina and the El Molino Formation of Bolivia of Maastrichtian age.[2] It had a distinctive slender snout.[3] Because the material associated with the specimens is so fragmentary, its relationships with other eusuchians remain unknown.[4] Jouve et al. (2020) assigned Dolichochampsa to Gavialoidea, making it the oldest known South American member of this clade.[5]
| Dolichochampsa Temporal range: Maastrichtian
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|---|---|
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: | †Dolichochampsidae De Gasparini & Buffetaut 1980 |
| Genus: | †Dolichochampsa Gasparini & Buffetaut 1980 |
| Type species | |
| †Dolichochampsa minima Gasparini & Buffetaut 1980
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References
edit- ^ Gasparini, Z; Buffetaut, E. (1980). "Dolichochampsa minima, n.g.n.sp., a representative of a new family of eusuchian crocodiles from the Late Cretaceous of northern Argentina". Neues Jahrbuch für Geologie und Paläontologie - Monatshefte. 1980 (5): 257–271. doi:10.1127/njgpm/1980/1980/257.
- ^ Buffetaut, E. (1987). "Occurrence of the crocodilian Dolichochampsa minima (Eusuchia, Dolichochampsidae) in the El Molino Formation of Bolivia". Bulletin de la Société Belge de Géologie. 96 (2): 195–199.
- ^ Brochu, C. A. (2001). "Crocodylian snouts in space and time: phylogenetic approaches toward adaptive radiation". American Zoologist. 41 (3): 564–585. CiteSeerX 10.1.1.554.231. doi:10.1668/0003-1569(2001)041[0564:CSISAT]2.0.CO;2.
- ^ Salisbury, S. W.; Molnar, R. E.; Frey, E.; Willis, P. M. A. (2006). "The origin of modern crocodyliforms: new evidence from the Cretaceous of Australia". Proceedings: Biological Sciences. 273 (1600): 2439–2448. doi:10.1098/rspb.2006.3613. PMC 1634899. PMID 16959633.
- ^ Jouve, S.; de Muizon, C.; Cespedes-Paz, R.; Sossa-Soruco, V.; Knoll, S. (2020). "The longirostrine crocodyliforms from Bolivia and their evolution through the Cretaceous–Palaeogene boundary". Zoological Journal of the Linnean Society. 192 (2): 475–509. doi:10.1093/zoolinnean/zlaa081.
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