- The
ptyctodontids ("folded-teeth") are
placoderms of the
order Ptyctodontida,
containing the
family Ptyctodontidae. With
their big heads, big eyes, reduced...
-
Materpiscis (Latin for
mother fish) is a
genus of
ptyctodontid placoderm from the Late
Devonian located at the Gogo
Formation of
Western Australia. Known...
-
their skin,
while ptyctodontids do not; the
armoured plates and
scales of
holocephalians are made of dentine,
while those of
ptyctodontids are made of bone;...
- find
confirmed the
hypothesis that a sub-group of placoderms,
called ptyctodontids,
fertilized their eggs internally. Some
fishes that
fertilize their...
-
Austroptyctodus gardineri is a
small ptyctodontid placoderm fish from the
Upper Devonian Gogo
Formation of
Western Australia.
First described by Miles...
- Materpiscis, a
ptyctodontid placoderm fish that is the
oldest vertebrate known to give live birth...
- of the
Buffalo Society of
Natural Sciences 17:18-22. Long, J.A. 1997.
Ptyctodontid fishes (Vertebrata, Placodermi) from the Late
Devonian Gogo Formation...
-
Campbellodus decipiens is an
extinct ptyctodontid placoderm fish that
lived around 380
million years ago (Late Devonian). Its
fossil remains have been...
-
Kimbryanodus is a
genus of
extinct ptyctodontid placoderm fish from the
Frasnian of Australia.These
placoderms can be told
apart from
others due to the...
- Holoptychius's
pectoral fins were
placed high on the body.
Ptyctodontida The
ptyctodontids (beak-teeth) are an
extinct monotypic order of
unarmored placoderms...
