"Supracretaceous" Pronounce,Meaning And Examples

"Supracretaceous" Meaning

The supracretaceous is a stratigraphic term that refers to a geologic time period and a lithostratigraphic unit. It represents the uppermost part of the Mesozoic Era's upper series, immediately above the Cretaceous period.

The supracretaceous includes rocks deposited during the last few millions of years of the Mesozoic Era and the beginning of the Paleogene period. The boundary between the Cretaceous and the Paleogene is marked by the so-called K-Pg (Kreide-Paläogen) or K-T (Cretaceous-Tertiary) boundary, which is characterized by a layer of iridium-rich continental deposits.

The supracretaceous rocks are often characterized by clastic and mixed sedimentary deposits, such as shales, limestones, and sandstones, which accumulated in a variety of marine and terrestrial environments. These rocks may include fossils of the first flowering plants, the first mammals, and other transitional forms that characterized the termination of the Mesozoic Era.

"Supracretaceous" Examples

Example 1:
The supracretaceous formation in the state of São Paulo, Brazil, is a valuable source of oil and natural gas.

Example 2:
The geologists studied the supracretaceous rocks to understand the geological history of the region.

Example 3:
The supracretaceous period, which spanned from approximately 145 to 100 million years ago, is characterized by the dominance of marine life.

Example 4:
The supracretaceous stratum has yielded numerous fossilized finds, including those of dinosaurs and early mammals.

Example 5:
During the supracretaceous era, the supercontinent of Pangaea began to break apart, resulting in the formation of new oceans and continents.