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Gyracanthus (from Gr****: γύρος gyros, 'curved' and Gr****: ἄκανθα akantha, 'spine') is an
extinct genus of acanthodian.
There are at
least twenty one definitively...
- and
include the
genera Ctenodus, Uronemus, Acanthodes, Cheirodus, and
Gyracanthus.
Chondrichthyes (especially
holocephalans like the Stethacanthids) underwent...
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Various acanthodians, from top left clockwise: Cheiracanthus, Acanthodes, Climatius, Ischnacanthus, Parexus,
Gyracanthus. center: Diplacanthus....
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Brachyacanthus Climatius Erriwacanthus Nodocosta?
Parexus Sevyacanthus †Gyracanthidae Aganacanthus?
Ankylacanthus Gyracanthides Gyracanthus Oracanthus?...
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Brachyacanthus Climatius Erriwacanthus Nodocosta?
Parexus Sevyacanthus †Gyracanthidae Aganacanthus?
Ankylacanthus Gyracanthides Gyracanthus Oracanthus?...
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Brachyacanthus Climatius Erriwacanthus Nodocosta?
Parexus Sevyacanthus †Gyracanthidae Aganacanthus?
Ankylacanthus Gyracanthides Gyracanthus Oracanthus?...
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Brachyacanthus Climatius Erriwacanthus Nodocosta?
Parexus Sevyacanthus †Gyracanthidae Aganacanthus?
Ankylacanthus Gyracanthides Gyracanthus Oracanthus?...
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Brachyacanthus Climatius Erriwacanthus Nodocosta?
Parexus Sevyacanthus †Gyracanthidae Aganacanthus?
Ankylacanthus Gyracanthides Gyracanthus Oracanthus?...
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Brachyacanthus Climatius Erriwacanthus Nodocosta?
Parexus Sevyacanthus †Gyracanthidae Aganacanthus?
Ankylacanthus Gyracanthides Gyracanthus Oracanthus?...
- †Eucalyptocrinites †Eurypterus †Favosites †Greererpeton †Greererpeton
burkemorani †
Gyracanthus †Holopea †Hughmilleria †Lepidodendron †Lepidodendron
aculeatum †Lepidodendron...
