Morrison Formation

English dictionary entry

Meanings

name
  1. A sequence of Upper Jurassic sedimentary rock in the western United States, noted as the most fertile source of dinosaur fossils in North America.

Word forms

Morrison Formation

Etymology

Named after the town of Morrison, Colorado, where some of the first fossils in the formation were discovered by American geologist Arthur Lakes in 1877.

This entry uses open data from Wiktionary (CC BY-SA/GFDL). Word forms are used for search and are not indexed as separate pages.