| Patagorhynchus Temporal range: Late Cretaceous, early
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| Holotype specimen | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Monotremata |
| Family: | Ornithorhynchidae (?) |
| Genus: | †Patagorhynchus Chimento et al., 2023 |
| Species: | †P. pascuali
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| Binomial name | |
| †Patagorhynchus pascuali Chimento et al., 2023
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Patagorhynchus is a genus of prehistoric monotreme mammal from the Late Cretaceous (early Maastrichtian) Chorrillo Formation of Santa Cruz Province, Argentina. The genus contains a single species, Patagorhynchus pascuali. The holotype, MPM-PV-23087, consists of a lower right molar attached to a fragment of the dentary. It was collected near Rio Gallegos, Santa Cruz, Argentina in 2022 and is housed in the Museo Padre Molina.[1]
- ^ Chimento, Nicolás R.; Agnolín, Federico L.; Manabe, Makoto; Tsuihiji, Takanobu; Rich, Thomas H.; Vickers-Rich, Patricia; Novas, Fernando E. (2023-02-16). "First monotreme from the Late Cretaceous of South America". Communications Biology. 6 (1): 146. doi:10.1038/s42003-023-04498-7. ISSN 2399-3642. PMC 9935847. PMID 36797304.