Sentences with phrase «from placoderms»

Not exact matches

Before the extinction, fish were dominated by two groups: the armor - plated, predatory placoderms and the lobe - finned fish, whose fins are borne on a fleshy, scaly stalk extending from the body.

Using fragments from three placoderm fossils, Ahlberg was able to piece together some of their musculature.

As the placoderm swam, waving its tail from side to side, the back half of its body would have swung from side to side as well.

Ahlberg found that each placoderm also had two pairs of muscles reaching from its shoulder girdle to the top of its head.

Daeschler and Olive's work focused largely on comparing the Red Hill site to Strud, noting many similarities between the two and using the size and shape of placoderm fossils from Red Hill, housed at the Academy of Natural Sciences, to establish the relative maturity of samples found in Strud.