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Definition of extinct
Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of extinct is as below...
Extinct
(a.)
Without
a
survivor;
without
force;
dead; as, a
family
becomes
extinct;
an
extinct
feud or law..
Lern More About Extinct
☛ Wiki Definition of Extinct
☛ Wiki Article of Extinct
☛ Google Meaning of Extinct
☛ Google Search for Extinct
Pycnodontini
::
Pycnodontini
(n. pl.) An
extinct
order of
ganoid
fishes.
They had a
compressed
body,
covered
with
dermal
ribs
(pleurolepida)
and with
enameled
rhomboidal
scales..
Ammonite
::
Ammonite
(n.) A
fossil
cephalopod
shell
related
to the
nautilus.
There are many
genera
and
species,
and all are
extinct,
the
typical
forms
having
existed
only in the
Mesozoic
age, when they were
exceedingly
numerous.
They
differ
from the
nautili
in
having
the
margins
of the septa very much lobed or
plaited,
and the
siphuncle
dorsal.
Also
called
serpent
stone,
snake
stone,
and cornu
Ammonis..
Proterosaurus
::
Proterosaurus
(n.) An
extinct
genus of
reptiles
of the
Permian
period.
Called
also
Protosaurus.
Extinction
::
Extinction
(n.) The act of
extinguishing
or
making
extinct;
a
putting
an end to; the act of
putting
out or
destroying
light,
fire, life,
activity,
influence,
etc..
Otozoum
::
Otozoum
(n.) An
extinct
genus of huge
vertebrates,
probably
dinosaurs,
known only from
four-toed
tracks
in
Triassic
sandstones..
Titanotherium
::
Titanotherium
(n.) A large
American
Miocene
mammal,
allied
to the
rhinoceros,
and more
nearly
to the
extinct
Brontotherium..
Out
::
Out (a.)
Beyond
the limit of
existence,
continuance,
or
supply;
to the end;
completely;
hence,
in, or into, a
condition
of
extinction,
exhaustion,
completion;
as, the fuel, or the fire, has
burned
out..
Moho
::
Moho (n.) A
gallinule
(Notornis
Mantelli)
formerly
inhabiting
New
Zealand,
but now
supposed
to be
extinct.
It was
incapable
of
flight.
See
Notornis..
Inoceramus
::
Inoceramus
(n.) An
extinct
genus of
large,
fossil,
bivalve
shells,allied
to the
mussels.
The genus is
characteristic
of the
Cretaceous
period..
Cestraciont
::
Cestraciont
(n.) A shark of the genus
Cestracion,
and of
related
genera.
The
posterior
teeth form a
pavement
of bony
plates
for
crushing
shellfish.
Most of the
species
are
extinct.
The Port
Jackson
shark and a
similar
one found in
California
are
living
examples..
Attainder
::
Attainder
(n.) The act of
attainting,
or the state of being
attainted;
the
extinction
of the civil
rights
and
capacities
of a
person,
consequent
upon
sentence
of death or
outlawry;
as, an act of
attainder..
Nummulites
::
Nummulites
(n.) A genus of
extinct
Tertiary
Foraminifera,
having
a thin, flat, round
shell,
containing
a large
number
of small
chambers
arranged
spirally..
Stegosaurus
::
Stegosauria
(n. pl.) An
extinct
order of
herbivorous
dinosaurs,
including
the
genera
Stegosaurus,
Omosaurus,
and their
allies..
Megaphyton
::
Megaphyton
(n.) An
extinct
genus of tree ferns with
large,
two-ranked
leaves,
or
fronds..
Hybodus
::
Hybodus
(n.) An
extinct
genus of
sharks
having
conical,
compressed
teeth..
Phocodontia
::
Phocodontia
(n. pl.) A group of
extinct
carnivorous
whales.
Their teeth had
compressed
and
serrated
crowns.
It
includes
Squalodon
and
allied
genera.
Paleechinoidea
::
Paleechinoidea
(n. pl.) An
extinct
order of sea
urchins
found in the
Paleozoic
rocks.
They had more than
twenty
vertical
rows of
plates.
Called
also
Palaeechini.
Enaliosauria
::
Enaliosauria
(n. pl.) An
extinct
group of
marine
reptiles,
embracing
both the
Ichthyosauria
and the
Plesiosauria,
now
regarded
as
distinct
orders..
Sea Elephant
::
Sea
elephant
() A very large seal
(Macrorhinus
proboscideus)
of the
Antarctic
seas, much
hunted
for its oil. It
sometimes
attains
a
length
of
thirty
feet, and is
remarkable
for the
prolongation
of the nose of the adult male into an
erectile
elastic
proboscis,
about a foot in
length.
Another
species
of
smaller
size (M.
angustirostris)
occurs
on the coast of Lower
California,
but is now
nearly
extinct..
Rugosa
::
Rugosa
(n. pl.) An
extinct
tribe of
fossil
corals,
including
numerous
species,
many of them of large size. They are
characteristic
of the
Paleozoic
formations.
The
radiating
septs,
when
present,
are
usually
in
multiples
of four. See
Cyathophylloid..
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