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Definition of cretaceous
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 cretaceous is as below...
Cretaceous
(a.)
Having
the
qualities
of
chalk;
abounding
with
chalk;
chalky;
as,
cretaceous
rocks and
formations.
See
Chalk..
Lern More About Cretaceous
☛ Wiki Definition of Cretaceous
☛ Wiki Article of Cretaceous
☛ Google Meaning of Cretaceous
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Mosasaurus
::
Mosasaurus
(n.) A genus of
extinct
marine
reptiles
allied
to the
lizards,
but
having
the body much
elongated,
and the limbs in the form of
paddles.
The first known
species,
nearly
fifty feet in
length,
was
discovered
in
Cretaceous
beds near
Maestricht,
in the
Netherlands..
Cretaceously
::
Cretaceously
(adv.)
In a
chalky
manner;
as
chalk.
Gault
::
Gault (n.) A
series
of beds of clay and marl in the South of
England,
between
the upper and lower
greensand
of the
Cretaceous
period..
Hippurite
::
Hippurite
(n.) A
fossil
bivalve
mollusk
of the genus
Hippurites,
of many
species,
having
a
conical,
cup-shaped
under
valve,
with a
flattish
upper valve or lid.
Hippurites
are found only in the
Cretaceous
rocks..
Baculite
::
Baculite
(n.) A
cephalopod
of the
extinct
genus
Baculites,
found
fossil
in the
Cretaceous
rocks.
It is like an
uncoiled
ammonite..
Cretose
::
Cretose
(a.)
Chalky;
cretaceous.
Inoceramus
::
Inoceramus
(n.) An
extinct
genus of
large,
fossil,
bivalve
shells,allied
to the
mussels.
The genus is
characteristic
of the
Cretaceous
period..
Laelaps
::
Laelaps
(n.) A genus of huge,
carnivorous,
dinosaurian
reptiles
from the
Cretaceous
formation
of the
United
States.
They had very large hind legs and tail, and are
supposed
to have been
bipedal.
Some of the
species
were about
eighteen
feet
high..
Scaphite
::
Scaphite
(n.) Any
fossil
cephalopod
shell of the genus
Scaphites,
belonging
to the
Ammonite
family
and
having
a
chambered
boat-shaped
shell.
Scaphites
are found in the
Cretaceous
formation..
Supradecompound
::
Supracretaceous
(a.) Lying above the
chalk;
Supercretaceous.
Pteranodon
::
Pteranodon
(n.) A genus of
American
Cretaceous
pterodactyls
destitute
of
teeth.
Several
species
are
known,
some of which had an
expanse
of wings of
twenty
feet or
more..
Gryphaea
::
Gryphaea
(n.) A genus of
cretaceous
fossil
shells
allied
to the
oyster.
Dakota Group
::
Dakota
group () A
subdivision
at the base of the
cretaceous
formation
in
Western
North
America;
-- so named from the
region
where the
strata
were first
studied.
Hadrosaurus
::
Hadrosaurus
(n.) An
American
herbivorous
dinosaur
of great size,
allied
to the
iguanodon.
It is found in the
Cretaceous
formation..
Elasmosaurus
::
Elasmosaurus
(n.) An
extinct,
long-necked,
marine,
cretaceous
reptile
from
Kansas,
allied
to
Plesiosaurus..
Laramie Group
::
Laramie
group () An
extensive
series
of
strata,
principally
developed
in the Rocky
Mountain
region,
as in the
Laramie
Mountains,
and
formerly
supposed
to be of the
Tertiary
age, but now
generally
regarded
as
Cretaceous,
or of
intermediate
and
transitional
character.
It
contains
beds of
lignite,
often
valuable
for coal, and is hence also
called
the
lignitic
group.
See Chart of
Geology..
Liriodendron
::
Liriodendron
(n.) A genus of large and very
beautiful
trees of North
America,
having
smooth,
shining
leaves,
and
handsome,
tuliplike
flowers;
tulip tree;
whitewood;
--
called
also
canoewood.
Liriodendron
tulipifera
is the only
extant
species,
but there were
several
others
in the
Cretaceous
epoch..
Belemnite
::
Belemnite
(n.) A
conical
calcareous
fossil,
tapering
to a point at the lower
extremity,
with a
conical
cavity
at the other end, where it is
ordinarily
broken;
but when
perfect
it
contains
a small
chambered
cone,
called
the
phragmocone,
prolonged,
on one side, into a
delicate
concave
blade;
the
thunderstone.
It is the
internal
shell of a
cephalopod
related
to the
sepia,
and
belonging
to an
extinct
family.
The
belemnites
are found in rocks of the
Jurassic
and
Cretaceous
ages..
Neocomian
::
Neocomian
(n.) A term
applied
to the
lowest
deposits
of the
Cretaceous
or chalk
formation
of
Europe,
being the lower
greensand..
Rudistes
::
Rudistes
(n. pl.) An
extinct
order or
suborder
of
bivalve
mollusks
characteristic
of the
Cretaceous
period;
--
called
also
Rudista.
See
Illust.
under
Hippurite.
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