Vintana

Vintana sertichi is an early groundhog-like 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
Temporal range: Maastrichtian
~
Life reconstruction of Vintana sertichi. Postcranial reconstruction is hypothetical.
Scientific classification Edit this 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 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, 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, other gondwanathere from same formation, this body mass is only exceeded by Repenomamus.[1][2][3][4]

See also

References
  1. 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). O'Connor, Patrick M., Seiffert, Erik R., Dumont, Elizabeth R., Holloway, Waymon L., Rogers, Raymond R., Rahantarisoa, Lydia J., Kemp, Addison D., Andriamialison, Haingoson. "First cranial remains of a gondwanatherian mammal reveal remarkable mosaicism". Nature. Nature Publishing Group, a division of Macmillan Publishers Limited. 515: 512–517. Bibcode:2014Natur.515..512K. doi:10.1038/nature13922. ISSN 1476-4687. PMID 25383528.
  2. Drake, Nadia (November 5, 2014). "Fossil From Dinosaur Era Reveals Big Mammal With Super Senses". nationalgeographic.com. National Geographic Society. Retrieved November 5, 2014.
  3. 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.
  4. 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.
  • Data related to Vintana at Wikispecies


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.