Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Any of various lobe-finned fishes, including the coelacanths but usually not the lungfishes. No longer in scientific use.
from The Century Dictionary.
- In ichthyology, belonging to or of the nature of the Crossopterygia or Crossopterygidæ; pertaining to the Crossopterygia. Also
crossopterygious . - noun One of the Crossopterygia.
from the GNU version of the Collaborative International Dictionary of English.
- adjective (Zoöl.) Of or pertaining to the Crossopterygii.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective zoology Of or pertaining to the Crossopterygii.
- noun zoology One of the Crossopterygii.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun any fish of the order Crossopterygii; most known only in fossil form
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[From New Latin Crossopterygiī, group name : Greek krossoi, fringe (from krossōtos, fringed, from krossai, projecting stone blocks) + Greek pterugia, fins, pl. diminutive of pterux, pterug-, wing; see pterygoid.]
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Examples
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Of particular importance is the presence of the crossopterygian group, typified by Eusthenopteron foordi and Elpistostege watsoni.
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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.
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