All items sold on this website are replicas and are 1:1 scale unless stated otherwise. All Bone Clones® products are made in the USA. No real/natural bone is available on this site.    

Product Info


Professors / Educators: If you would like to build a list to send to your procurement department, or to us at, use the "Add to Wishlist" button on the right. Once you've finished adding items, go to your wishlist, and use the    button in the upper-right to email it.
Cynodont - Probainognathus jenseni Skull
CD-01 $205.00

247 - 200 MYA. This beautiful specimen was sculpted by Glenn T. Drewes, instructor of biology at San Bernardino Valley College in California. Probainognathus jenseni was a carnivorous mammal-like reptile from the family Chiniquodontidae and is the first animal to exhibit mammal-like features. Approximately the size of a large house cat, this animal lived in South America during the Middle and Upper Triassic, approximately 247-200 million years ago. Probainognathus jenseni is part of a group of cynodonts that first began to exhibit specialized teeth, jaw structure, and musculature toward a mammalian pattern. Specifically in jaw articulation, Probainognathus jenseni exhibits both reptilian and mammalian characteristics with the jaw articulating between the articular and quadrate bones and between the dentary and squamosal bones. This fossil is an excellent example of the transition between ancestral reptiles and mammals. 2-part skull (separate cranium & jaw).

Scientific Name Catalogue # Size Price
Probainognathus jenseni CD-01 3 ½" L x 2 ½" W x 1 ½" H $205.00

This oval black resin base is suitable for use with various Bone Clones items, and is a perfect contrast for showcasing the bone-color skulls. Available in 3 sizes: small OB-01, medium OB-02, and large OB-03.

You can customize certain skulls you purchase by displaying them on the base most appropriate for the size of that skull. Intended for generally smaller skulls from our collection. You will find these bases as an accessory option on product pages where we have determined a size match between the base and the skull .

Naturally, you may find many other uses for these display bases.

Catalogue # Size Price
OB-02 3 ½" L x 6 ½" W $26.00
TOTAL 205.00