How To Use Crossopterygian In A Sentence

One group of extinct crossopterygians, known as the rhipidistians, are the group thought by most to be the ones that successfully invaded land and gave rise to amphibians.
The coelacanths were a side group of crossopterygians who evolved along separate lines from the rhipidistians in the Devonian.
These similarities have prompted evolutionists to confidently declare that crossopterygians evolved into tetrapods.
Latimeria is a ‘living fossil,’ a single surviving species of the old lineage of crossopterygian fishes.
Large Bothriolepis plates were scattered around through the rocks with abundant crossopterygian bones and scales in the top units.

‘Amphibians’ were held to be descended from rhipidistian crossopterygians and the closest living relative of amphibians was coelacanths.
Of particular importance is the presence of the crossopterygian group, typified by Eusthenopteron foordi and Elpistostege watsoni. Miguasha Provincial Park, Canada
Look at the comparison of the oldest known amphibian skeleton, Ichthyostega IK-the-o-STAY-ga, with a crossopterygian fish shown in Figure 4-8. Transitions on the DI blog - The Panda's Thumb
Fish included many elasmobranchs as well as osteichthyes such as palaeoniscoids, dipnoi, selachians, and crossopterygians, together with the ancient acanthodians.
The sarcopterygians include the lungfish, together with the crossopterygians, which are composed of coelacanths and the extinct rhipidistians.
After a light breakfast I studied a draft of a paper that we had just submitted on the new fossil crossopterygian fishes of the Aztec Siltstone.