![](https://sciencepress.mnhn.fr/sites/default/files/periodiques/visuels/grand/geodiversitas-grand-visuel_0.jpg)
New remains of snakes from the Late Cretaceous (La Colonia Formation; Campanian-Maastrichtian) of Argentina increase the record of the earliest Patagonian snakes. They include the southernmost record of the madtsoiid snake Alamitophis, another probable madtsoiid, perhaps a boid, and a snake incertae sedis.
Cretaceous, Serpentes, Madtsoiidae, ?Boidae, incertae sedis, Patagonia, paleobiogeography