320 A revised radiolarian zonation for the Upper Jurassic of western North America Stationery

320 A revised radiolarian zonation for the Upper Jurassic of western North America StationeryA revised radiolarian zonation for the Upper Jurassic of western North America BAP #320 An accurate radiolarian zonation for the Upper Jurassic is critical to unraveling the stratigraphy and tectonic history of much western North America. To meet this end a revised zonation is presented for the Upper Jurassic of the California Coast Ranges. Zone 1, 2, 3 and 4 of Pessagno (1977a, 1977b) are redefined and related as accurately as possible to Upper

Drawing on the latest fossil discoveries and breakthrough scientific analysis

comes a new nonfiction picture book series ready to grow young scientists by nurturing their curiosity about the natural world--starting with what's inside a flower

This magnificent volume from the American Museum of Natural History tells their incredible story

Vallupus Pessagno and Blome

The base of this superzone has not yet been determined in the Marathon uplift

Lighthouse Ocean "Light Up My Life" Men's Crew Socks

Encourage young nature lovers to get outside and track

Length: 14 inches

insects may be the most successful land animals ever

plan your garden

award-winning author-illustrator Steve Jenkins presents a fascinating array of these intriguing insects and the many amazing adaptations they have made to survive

14" Parasaurolophus Dinosauria Plush