"Complete Meter Stick Optics Bench"

Choice, well-prepped specimens of this distinctive "high-domed" fossil echinoid. Complete and detailed samples. Average size, 1 1/2"to 2" in diameter. Germany.

Large, complete Middle Cambrian trilobite, with long genal spines. It measures 7¹/₂" in length on an 8¹/₄×10¹/₂" matrix. Resin. Newfoundland.

This complete skeleton is an example of a primitive synaptosaurian reptile group known as nothosaurs. It measures 9¹/₂" in length on an 11³/₄×6¹/₄" matrix. Resin. Switzerland.

A spectacular, museum-quality example of the official Ohio state fossil, it is complete, down to the genal spines. It measures 9" in length on an 11³/₄"×10¹/₂" matrix. Resin. Ohio.

This remarkable resin cast features one of the most complete examples of a near contemporary of Archaeopteryx. Recently found in Liaoning Province in China, this fossil bird displays the earliest evidence of truly beaked birds with clear body contour feathers.

Arthropoda

Camerate crinoid crown and stem.