The Paleocene is a geological epoch within the Paleogene Period, spanning approximately 66 to 56 million years ago, immediately following the Cretaceous–Paleogene (K–Pg) boundary. It is defined ...

A human-sized penguin, larger than any current species, has been identified from fossils, the latest discovery from an area gaining a reputation as being rich in previously-unknown remains. Over five ...

A new species of giant penguin - about 1.6 metres tall - has been identified from fossils found in Waipara, North Canterbury. The discovery of Crossvallia waiparensis, a monster penguin from the ...

The end of the Paleocene Epoch was marked by an abrupt, worldwide extinction of deep-sea benthic organisms. At about 55 Ma, between 30 and 50% of the benthic foraminifers suddenly became extinct, in ...

A detail from The Trek Through Time, a 16-plaque diorama at the U.S. Geological Survey’s headquarters in Reston, Va. This painting by Aldo Chiappe depicts the Paleocene Epoch, 66 to 56 million years ...