Ammonites are arguably the most widely known fossil, possessing a signature ribbed spiral-form shell. They belong to a group of ancient predators known as cephalopods, which includes living relatives such as the octopus, squid, cuttlefish and nautilus. Ammonites function as excellent index fossils, and it is often possible to link the rock layer in which a particular species or genus is found to specific geological time periods. They lived from the Devonian period up until the catastrophic extinction that wiped out the dinosaurs in the late Cretaceous period.
This gorgeous pair of polished ammonite fossils makes an excellent conversation piece, or gift for the biology or fossil enthusiast in your family or circle of friends. Great for display or experiment in the classroom.
This classic desk toy will keep you amused!
Build your own 10 inch kaleidoscope with this great kit!
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!
This beautiful candle holder is carved out of natural amethyst!
This high precision gyroscope will amaze you with rotational speed and ease of precision.
The Wimshurst Machine is a high quality static machine for student labs.