This geology/astronomical poster is a full-color educational wallchart, documenting 4.5 billion years of Earth's natural history. Each column is a timeline from ancient times to recent. Included are: plate tectonic maps, mountain building events (orogenies), major volcanic episodes, glacial epochs, over 100 classic fossil localities from around the world, fossil ranges of plants, invertebrates and vertebrate life forms, and major extinction events as revealed by the fossil record. Also, evident on this chart are the "Cambrian explosions" of animal phyla and the juxtaposition of reptiles and mammals across the Cretaceous/ Tertiary (K/T) boundary. Many interesting illustrations. Published in its 4th, most recent edition. |
| MINIMUM ORDER TOTAL MUST BE $15. All of the Jensan Scientifics study materials have been reviewed by qualified scientists and educators, and no matter what size the set, information sheets are always included. The details of rock and mineral sample selections are proprietary to Jensan Scientifics. For individual questions, we welcome e-mail or calls! "Our progress as a nation can be no swifter than our progress in education" -- J. F. Kennedy
"It is mandatory that scientific art must be utilized to keep young minds engaged for the generations to come - as they are now pampered by a deep technology that demands that art and science be interrelated." - Sarah Kennedy, CEO, Jensan Scientifics LLC |