Gemuendina stuertzi, ray-like Placoderm Stegosaurus 9---Mixopterus

9---Mixopterus

and few museum replicas are more beautiful or intriguing than the Berlin specimen of Archaeopteryx

The find consisted of upper and lower teeth belonging to a single individual specimen with the largest tooth reaching 6 inches in length

Time period: Throughout the Pleistocene

000 pounds

Gemuendina stuertzi, ray-like Placoderm Stegosaurus 9---MixopterusGemuendina stuertzi is a placoderm of the order Rhenanida, of the seas of Early Devonian Germany. In life, Gemuendina resembled a scaly ray with an upturned head, or a large finned stargazer. G. stuertzi is often invoked as an example of convergent evolution with its flat body and huge, wing like pectoral fins it has a strong, albeit superficial similarity to rays. Unlike rays, however, both Gemuendina`s eyes and nostrils were placed atop the head,