Definitions
from The Century Dictionary.
- A section of geophilous gastropods destitute of jaws.
- A class of fishes, or fishlike vertebrates, characterized by the absence of jaws and shoulder-girdle. It contains the extinct ostracoderms and the existing lampreys.
from the GNU version of the Collaborative International Dictionary of English.
- noun a class of eel-shaped chordates with a cartilaginous skeleton lacking jaws, scales, and pelvic fins. Among these are the lampreys and hagfishes. There are some extinct forms.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- proper noun A taxonomic
superclass within thesubphylum Vertebrata — thejawless fishes , oragnathans .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
Support
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Examples
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Lampreys and hagfish, jawless fish belonging to an ancient class called Agnatha figure in the exam, and are still often discussed in evolutionary biology, for example, where researchers debate the evolution of the jaw, necessary for eating all sorts of food.
unknown title 2009
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A rift between them widens when Todd departs abruptly to meet Agnatha (Shannon Burkett) in
NYT > Home Page 2010
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A rift between them widens when Todd departs abruptly to meet Agnatha (Shannon Burkett) in
NYT > Home Page 2010
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Todd and Bryan's communication impasse is matched by an extended estrangement between Agnatha and her hard-partying sister, Tess (also Burkett), who beds the despondent Bryan in New York.
NYT > Home Page 2010
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Todd and Bryan's communication impasse is matched by an extended estrangement between Agnatha and her hard-partying sister, Tess (also Burkett), who beds the despondent Bryan in New York.
NYT > Home Page 2010
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'' are examples of these jawless fish or [[Agnatha]].
Conservapedia - Recent changes [en] HappyBirthdayDarwin 2010
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