Fossil Block Experience Kit | Green River Formation | Fossil Butte Member Spino migrated to connecting streams or

migrated to connecting streams or rivers for development

reflect specialization for rapid swimming and active predation along the margins of the Jurassic Tethys

It had a wide habitat tolerance

Positive plate approx

Fossil Block Experience Kit | Green River Formation | Fossil Butte Member Spino migrated to connecting streams orFossil Block Experience Kit Green River Formation Fossil Butte Member Uncover millions of years of prehistoric history right in your own hands. Each kit includes an 89 lb. block of authentic Fossil Butte Member rock sourced from the renowned mini fish stratification layer one of the richest fossil bearing zones in the Green River Formation. What's Inside Your Kit Every Fossil Block Experience Kit includes everything you need to get started: 89 lb.