Related topics: dinosaurs · fossil

Rare new fossil find the 'Rosetta Stone' of marine paleontology

Queensland Museum Network paleontologists have excavated Australia's first head and associated body of a 100-million-year-old long-necked marine reptile in what has been described as the Rosetta Stone of marine reptile paleontology.

T-rex in Singapore as experts decry 'harmful' auctions

Dinosaur fans got a glimpse of a Tyrannosaurus rex skeleton as it went on display in Singapore Friday before an auction next month, as experts slammed the big-money bone trade as "harmful to science".

Oldest discovery to date of physogastric insects

Trapped in tree resin and preserved as in a time capsule: fossils enclosed in amber yield detailed insights into the anatomy of long extinct species. LMU zoologists Prof. Joachim T. Haug and Dr. Carolin Haug have discovered ...

page 1 from 24

Cretaceous

The Cretaceous (pronounced /kriːˈteɪʃəs/), Latin language for "chalky", usually abbreviated K for its German translation Kreide (chalk), is a geologic period and system from circa 145.5 ± 4 to 65.5 ± 0.3 million years ago (Ma). In the geologic timescale, the Cretaceous follows on the Jurassic period and is followed by the Paleogene period. It is the youngest period of the Mesozoic era, and at 80 million years long, the longest period of the Phanerozoic eon. The end of the Cretaceous defines the boundary between the Mesozoic and Cenozoic eras. In many foreign languages this period is known as "chalk period".

The Cretaceous was a period with a relatively warm climate and high eustatic sea level. The oceans and seas were populated with now extinct marine reptiles, ammonites and rudists; and the land by dinosaurs. At the same time, new groups of mammals and birds as well as flowering plants appeared. The Cretaceous ended with one of the largest mass extinctions in Earth history, the K-T extinction, when many species, including the dinosaurs, pterosaurs, and large marine reptiles, disappeared.

This text uses material from Wikipedia, licensed under CC BY-SA