Gemuendina stuertzi, ray-like Placoderm Posters Manchurochelys liaoxiensis

Manchurochelys liaoxiensis

or link between prosimian and simian (anthropoid) primate lineages

this specimen has the best preserved head

powerful jaws

Compared to the slightly more ancient ankylosaurid Euoplocephalus

Gemuendina stuertzi, ray-like Placoderm Posters Manchurochelys liaoxiensisGemuendina 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,