Albertonectes vanderveldei, a species of elasmosaurid plesiosaur, lived during the Late Cretaceous period. Known for its incredibly long neck, reaching up to 7 meters, this marine reptile inhabited the Western Interior Seaway. Its streamlined body and flippers made it an adept swimmer, preying on fish and cephalopods.

Albertonectes vanderveldei is an extinct species of elasmosaurid plesiosaur that was native to the Late Cretaceous period. Its fossils have been predominantly found in the Bearpaw Formation in Alberta, Canada.

During the Late Cretaceous, the region that is now Alberta was part of the Western Interior Seaway, a large inland sea that divided North America into two landmasses. This seaway was characterized by a warm, shallow marine environment with abundant marine life.

As a marine reptile, Albertonectes vanderveldei occupied a niche as a predator within the marine ecosystem. It likely fed on smaller marine animals such as fish and cephalopods. Its long neck and streamlined body suggest adaptations for efficient swimming and hunting in the open ocean.