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Acanthostega, from
Ancient Gr**** ἄκανθα (ákantha),
meaning "spine", and στέγη (stégē),
meaning "roof", is an
extinct genus of stem-tetrapod,
among the...
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evolved in the Devonian,
including the Late Devonian-age
Ichthyostega and
Acanthostega, as well as the
trackmakers of the
Middle Devonian-age
Zachelmie trackways...
- fin was not as deep as in
Acanthostega, and
would have been less
useful for swimming.
Ichthyostega is
related to
Acanthostega gunnari,
which is also from...
- group, the
earliest limbed tetrapodomorphs such as
Ichthyostega and
Acanthostega,
which evolved in the
Devonian period long
before the
origin of the crown...
- lobe-finned fish (like
Gooloogongia and Eusthenopteron) and
tetrapods (like
Acanthostega). The
pelvis was much
larger than in
other fish,
nearly the same size...
-
Ventastega is more
primitive than
other Devonian tetrapodomorphs including Acanthostega and Ichthyostega, and
helps further understanding of the fish-tetrapod...
- the
transition to the Carboniferous.
Ichthyostegalia Acanthostegidae Acanthostega Cr****igyrinidae Cr****igyrinus
Densignathidae Densignathus Elginerpetontidae...
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Greenland is
specially rich, with some of the
early tetrapods such as the
Acanthostega and
Ichthyostega from the
Devonian and
unique Tri****ic
animals such as...
- (7472): 546–549. doi:10.1038/nature12645. Benton,
Michael J. (2019). "
Acanthostega".
Vertebrate Palaeontology (Kindle ed.). Wiley. p. 90. Encyclopædia Britannica...
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defining changes on the
basis of
anatomy of Ichthyostega, Tulerpeton, and
Acanthostega. In the cranium,
there is a
stapes derived from the
hyomandibular of...
