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The Dinosaurs and Prehistoric Animals of New Hampshire


Geologically speaking, New Hampshire has the fewest fossils of any state in the U.S.--but its ancient sediments do contain traces of some marine organisms, as listed below. (See an interactive map of dinosaurs and prehistoric animals in the United States.)

1. Brachiopods

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The only extant fossils in New Hampshire date from the Devonian, Ordovician and Silurian periods, from about 400 to 300 million years ago. Brachiopods--small, shelled, ocean-dwelling creatures closely related to modern bivalves--were especially common in this state.

2. Corals

Fossil Museum
Many people are unaware that corals are actually small, marine, colony-dwelling animals, and not plants. Hundreds of millions of years ago, prehistoric corals were common across the breadth of North America; some particularly striking fossil specimens have been discovered in New Hampshire.

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