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Vintana

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Vintana Temporal range: Maastrichtian ~70.6–66 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓

Life reconstruction of Vintana sertichi. Postcranial reconstruction is hypothetical.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Family:	†Sudamericidae
Genus:	†Vintana Krause et al., 2014
Species:	†V. sertichi
Binomial name
†Vintana sertichi Krause et al., 2014

Vintana sertichi is an early gondwanatherian mammal dating from the Late Cretaceous, approximately 66 million years ago. Scientists found the lone fossil, a skull, on Madagascar's west coast in the Maastrichtian Maevarano Formation.

Vintana is extremely relevant to the understanding of gondwanatheres because it is the first well-preserved skull, as opposed to previous fragments and teeth. Establishing a connection with multituberculates and haramiyidans in the theriiform clade Allotheria, it is a rather unusual animal, either closely associated with the archosaursorEuarchontoglires and Laurasiatheria, possessing massive lateral flanges in its skull whose exact purpose is poorly understood, as well as massive olfactory bulbs. A rather large animal at a weight of 19 pounds (8.74 kg), Vintana also represents another example of a considerably large Mesozoic mammal alongside Adalatherium, another gondwanathere from same formation, this body mass is only exceeded by Repenomamus^[1]^[2]^[3]^[4] and Patagomaia.

References

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^ Krause, David W.; Hoffmann, Simone; Wible, John R.; Kirk, E. Christopher; Schultz, Julia A.; von Koenigswald, Wighart; Groenke, Joseph R.; Rossie, James B. (2014-11-05). "First cranial remains of a gondwanatherian mammal reveal remarkable mosaicism". Nature. 515 (7528). O'Connor, Patrick M., Seiffert, Erik R., Dumont, Elizabeth R., Holloway, Waymon L., Rogers, Raymond R., Rahantarisoa, Lydia J., Kemp, Addison D., Andriamialison, Haingoson. Nature Publishing Group, a division of Macmillan Publishers Limited: 512–517. Bibcode:2014Natur.515..512K. doi:10.1038/nature13922. ISSN 1476-4687. PMID 25383528. S2CID 4395258.

^ Drake, Nadia (November 5, 2014). "Fossil From Dinosaur Era Reveals Big Mammal With Super Senses". nationalgeographic.com. National Geographic Society. Archived from the original on November 5, 2014. Retrieved November 5, 2014.

^ Wilford, John Noble (November 5, 2014). "Fossil's Unusual Size and Location Offer Clues in Evolution of Mammals". New York Times. Retrieved November 6, 2014.

^ Krause, David W.; Hoffmann, Simone; Hu, Yaoming; Wible, John R.; Rougier, Guillermo W.; Kirk, E. Christopher; Groenke, Joseph R.; Rogers, Raymond R.; Rossie, James B.; Schultz, Julia A.; Evans, Alistair R.; von Koenigswald, Wighart; Rahantarisoa, Lydia J. (2020). "Skeleton of a Cretaceous mammal from Madagascar reflects long-term insularity". Nature. 581 (7809): 421–427. doi:10.1038/s41586-020-2234-8. ISSN 1476-4687. PMID 32461642. S2CID 256822209.