-
Paleontologists and
placoderm specialists suspect that the
scarcity of
placoderms in the
Silurian fossil record is due to
placoderms'
living in environments...
-
including all
living cartilaginous and bony fish, as well as the
extinct placoderms and acanthodians. In a
break to the long
tradition of
grouping all fish...
- that a
branch of
placoderms was most
likely the
ancestor of present-day gnathostomes. A 419-million-year-old
fossil of a
placoderm named Entelognathus...
-
other placoderms, may have also been
among the
first vertebrates to
internalize egg fertilization, as seen in some
modern sharks. Some
other placoderms have...
-
hinged to the
thoracic armour. This
allowed placoderms to lift
their heads,
unlike ostracoderms.
Placoderms were the
first jawed fish;
their jaws likely...
- time,
leading the
Devonian to be
called the Age of Fishes. The
armored placoderms began dominating almost every known aquatic environment. In the oceans...
-
class Placodermi.
Recent studies indicate that
Osteichthyes evolved from
placoderms like Entelognathus,
while acanthodians are more
closely related to modern...
-
connection between the
teeth and the
original dermal scales. The old
placoderms did not have
teeth at all, but had
sharp bony
plates in
their mouth. Thus...
- non-cryptographic hash
function mürmur, a New York City
podcast Murmur (
placoderm), a
genus of
placoderms Murmuration, a
swarming behavior of
starlings Mur Murs, do****entary...
- today.
Bothriolepis is a
genus placed within the
placoderm order Antiarchi. The
earliest antiarch placoderms first appeared in the
Silurian period of the...
