Reconstruction of Mosasaurus hoffmannii （Image source：UnexpectedDinoLesson， CC BY 4.0 ） Age Cretaceous（Campanian-Maastrichtian） 82.7-66.0 Ma Taxonomy Kingdom: Animalia Phylum: Chordata Class: Sauropsida Order: Squamata Superfamily: Mosasauroidea Family: Mosasauridae Subfamily: Mosasaurinae Genus: Mosasaurus Species: Mosasaurus hoffmannii Morphological description Mosasaurus hoffmannii was an exceptionally large marine squamate from the Late Cretaceous, with adults reaching

Reconstruction of Globidens alabamaensis （Image source：Dmitry Bogdanov， CC BY-SA 3.0 ） Age Cretaceous（Campanian） 84.9-66 Ma Taxonomy Kingdom: Animalia Phylum: Chordata Class: Reptilia Order: Squamata Family: Mosasauridae Genus: Globidens Species: Globidens alabamaensis Morphological description Globidens alabamaensis is a medium-sized mosasaur, reaching approximately 6 meters in length, with a streamlined body and a laterally flattened tail. Its most distinctive features