Fossil Focus Exhibits
Life reconstructions of Placenticeras meeki and Baculites grandis, two very different ammonites that lived in the Late Cretaceous, are hanging in the Life Through Time exhibit area. Placenticeras, the coiled ammonite is 24" in diameter and Baculites, the straight ammonite, is 88" long. For more information and photos, see the Cephalopods section of our Cretaceous exhibit.
Making of a FossilFossils take many forms. Learn the difference between processes such as petrification, carbonization and impressions. View case index
Ammonite bodies resembled the modern day squid. Some ammonites grew to six feet (2 meters) in diameter. View case index Life Through Time Exhibit.)
Primitive, wingless, insects are first seen in the fossil record approximately 380 million years ago. Insect fossils in this web-only display date back to the Jurassic Period. They include insects in amber as well as impression fossils. View display indexView case index View case index (Many additional echinoderms are displayed in the cases of the Life Through Time Exhibit.)
Trilobites are arthropods which lived from 570-240 million years ago. Many different types of trilobites are shown here from the U.S., Africa, and Canada. View case index (Many additional trilobites are displayed in the Paleozoic cases of the Life Through Time Exhibit.)
Life Through Time Mural
©2006, HSU NHM | Last modified 12 October 2012