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The Department of Invertebrate Paleontology at the Natural History Museum of Los Angeles County promotes the study of fossil invertebrates (animals without backbones). We maintain collections of fossils from all major invertebrate groups including Porifera (sponges); Cnidaria (corals, jellyfish); Arthropoda (trilobites, insects, crustaceans); Mollusca (clams, snails, chitons); Bryozoa (moss animals); Brachiopoda (lantern shells); and Echinodermata (starfish, sea urchins, sand dollars, sea lilies). We also have collections of trace fossils, including the tracks, trails and burrows of ancient organisms. Invertebrate fossils provide important clues to our understanding of earth history. They are the primary evidence for the rich history of life on earth. The vast majority of animals that ever lived are now extinct, and these forms can only be studied as fossils. Study of the diversity and distribution of ancient animals provides a unique window into the past and allows us to determine how life has responded to climate change throughout earth history.

Photograph of fossil ammonite, Pachydiscus catarinae.
Pachydiscus catarinae Anderson & Hanna, 1935: Late Cretaceous


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A fossil coral, Antiguastrea cellulosa.
Antiguastrea cellulosa, Vaughan, 1919: Late Oligocene

COLLECTIONS

The Invertebrate Paleontology collection holds approximately 3.5 million specimens in over 26,000 cataloged localities and currently ranks seventh or eighth in size in the world and second in the Pacific rim. For more information, see our collections pages

EXHIBITS & PUBLIC PROGRAMS

ADDITIONAL RESOURCES

Invertebrate Paleontology Image Gallery Research Dataset Archive
Paleonet - resources for paleontology. Neogene Marine Biota of Tropical America - an interactive database.
The Panama Paleontology Project. Earthguide - an educuational resource in earth and environmental science for teachers and students

The Department of Invertebrate Paleontology is supported by the United States National Science Foundation (grants EAR 9909485 and DBI 0237337).

last updated 4 March, 2005