One of the mysteries of the English language finally explained.
A lobe-finned fish, such as the coelacanth.
- ‘These similarities have prompted evolutionists to confidently declare that crossopterygians evolved into tetrapods.’
- ‘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.’
- ‘‘Amphibians’ were held to be descended from rhipidistian crossopterygians and the closest living relative of amphibians was coelacanths.’
- ‘The sarcopterygians include the lungfish, together with the crossopterygians, which are composed of coelacanths and the extinct rhipidistians.’
Relating to crossopterygians.
- ‘Large Bothriolepis plates were scattered around through the rocks with abundant crossopterygian bones and scales in the top units.’
- ‘Latimeria is a ‘living fossil,’ a single surviving species of the old lineage of crossopterygian fishes.’
- ‘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.’
Mid 19th century: from modern Latin Crossopterygii, from Greek krossos ‘tassel’ + pterux, pterug- ‘fin’.
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