Alan Hildebrand1990
Idetifies the 180 mile wide Chicxulub crater in Mexico, and propose it as being the most likely candidate for the catastrophic environmental changes that killed off 70% of all species around 65 million years ago
United States of America · Science / Astronomy. Chronological records rendered directly from the World History Database.
Idetifies the 180 mile wide Chicxulub crater in Mexico, and propose it as being the most likely candidate for the catastrophic environmental changes that killed off 70% of all species around 65 million years ago
This factsheet is generated from stored World History Database records matching the country, broad category, detailed category and exact Event value shown above. Duplicate display records are collapsed; database wording is otherwise preserved. Source provenance varies by record, so formal academic citation should be checked against the relevant primary source, archive or specialist historical reference.