Dinosaurs & Fossils

The big story of deep time, made approachable.

Trackways, fossils, ancient ecosystems, and the simple evidence that helps us understand animals that vanished long before us.

Dinosaurs & fossils

The big story of deep time, made approachable.

Dinosaurs did not appear all at once, and fossils are not just bones. Fossils include teeth, shells, eggs, burrows, impressions, trackways, and the sedimentary context that helps scientists interpret ancient life.

What is a trackway?

A connected series of fossil footprints. Trackways can preserve direction, movement, body size clues, speed estimates, and sometimes social behavior.

Why context matters

A fossil without its rock layer is missing part of its story. Sediment, position, age, and surrounding evidence help keep interpretation honest.

Not every reptile is a dinosaur

Marine reptiles like Nevada’s famous ichthyosaurs are prehistoric and spectacular, but they are not dinosaurs. Teaching that distinction builds trust.

Nevada prehistoric life

Nevada’s most famous prehistoric star swam in an ancient sea.

Berlin-Ichthyosaur State Park protects the remains of giant Triassic ichthyosaurs, including Nevada’s state fossil. These animals were ocean-going reptiles, a reminder that Nevada has not always been desert.

Near Las Vegas, Tule Springs Fossil Beds National Monument tells a different story: Ice Age wetlands, mammoths, camels, horses, bison, ground sloths, and other animals that lived long after non-avian dinosaurs were gone.

Track impression holding water in red sandstone
Dinosaur timeline

Three simple windows into dinosaur history.

Late TriassicEarly dinosaurs appear alongside many other reptiles in changing ecosystems.Good for understanding that dinosaurs were not always dominant.
JurassicSauropods, famous predators, and widespread track-bearing formations become part of the story people recognize.Great entry point for trackways, desert sediments, and deep-time landscapes.
CretaceousMany familiar dinosaur groups diversify before the end-Cretaceous extinction.Connects dinosaur fame with evolution, extinction, and evidence.
Field guide starter

Places Dino Doug fans can learn about.

Tuba City Trackway

Track-rich sandstone in Arizona that helps visitors imagine animals moving across wet sediment more than 190 million years ago.

Mill Canyon & Moab

Utah’s red rock country preserves track-bearing horizons, bones, and museum-ready examples of how field science works.

La Brea Tar Pits

Not dinosaurs, but a powerful Ice Age lesson in preservation, extinction, and how asphalt can trap an ecosystem’s story.