Geologists call this period the 'Late Cretaceous'.

We haven't even reached the Cretaceous Period yet.

So when it comes down to our end cretaceous, we have seven left.

By the end of the Cretaceous, only large species of pterosaurs are known.

So when it comes down to our end Cretaceous, we have seven left.

The group probably first appeared during the Jurassic and is well represented in Cretaceous amber.

Walking with Dinosaurs is a 2013 family film about dinosaurs set in the Late Cretaceous period, years ago.

Steneosaurus is an extinct genus of teleosaurid crocodyliform from the Early Jurassic to Early Cretaceous (Toarcian to Berriasian).

They existed from the late Triassic to the end of the Cretaceous Period (228 to 66 million years ago).

Primarily growing in regions of warmer climates during the late Cretaceous period, vast fields existed in what is now Asia.

Climate During the Late Cretaceous, the climate was warmer than present, although throughout the period a cooling trend is evident.

In 1966, E. O. Wilson and his colleagues identified the fossil remains of an ant ( Sphecomyrma ) that lived in the Cretaceous period.

These rocks range in age from Permian (as old as 270 million years old) to Cretaceous (as young as 80 million years old.

Other studies, including molecular clock studies, have estimated the origin of the primate branch to have been in the mid Cretaceous period, around 85 mya.

Ants evolved from wasp like ancestors in the mid Cretaceous period between 110 and 130 million years ago and diversified after the rise of flowering plants.

The origin of these groups from a blattopteran stock are now generally thought to be in the early Jurassic the earliest modern cockroach found is from the Cretaceous.

Cavemen are frequently represented as living with dinosaurs in popular culture, even though dinosaurs became extinct at the end of the Cretaceous period, some 66 million years before the emergence of the human species.

Other research on Toxicofera, a hypothetical clade thought to be ancestral to most living reptiles, suggests an earlier time frame for the evolution of snake venom, possibly to the order of tens of millions of years, during the Late Cretaceous.

Across the sea in Germany, oil was found in the Wietze field near Hanover in 1859, leading to the discovery of seventy more fields, mostly in Lower Cretaceous and Jurassic reservoirs, producing a combined total of around 1340 m³ (8,400 barrels) per day.

15. The studies have revealed that the land areas were formed by a piling up of kilometre thick highly tectonized overthrust nappes, made up primarily of flysch material of the Cretaceous and Palaeogenic periods, indicating between 130 million and 20 million years of age.

All along it was thought to be either an act of God or perhaps long, slow climate change, and that really changed in 1980, in this rocky outcrop near Gubbio, where Walter Alvarez, trying to figure out what was the time difference between these white rocks, which held creatures of the Cretaceous period, and the pink rocks above, which held Tertiary fossils.