-
immensely when feeding.
These "pleated
throat grooves"
distinguish balaenopterids from
other whales.
Rorquals are
slender and
streamlined in shape, compared...
-
pressure increases.
Mysticetes consist of four families:
rorquals (
balaenopterids), cetotheriids,
right whales (balaenids), and grey
whales (eschrichtiids)...
- be
difficult to
conclusively identify.
Included are
three species of
balaenopterids including two
undetermined species and one
identified as cf. Plesiobalaenoptera...
- from Montezago; it
probably represents a distinct,
unnamed genus of
balaenopterid. †Balaenoptera davidsonii, like B. cephalus, was
originally classified...
- seawater. Grey
whales feed on bottom-dwelling mollusks.
Rorqual family (
balaenopterids) use
throat pleats to
expand their mouths to take in food and sieve...
- Y. Tajima, K. Arai, A.
Umetani & N.
Kurihara (2006). "Middle
sized balaenopterid whale specimens (Cetacea: Balaenopteridae)
preserved at
several institutions...
-
longitudinal pleats or
grooves on the
anterior half of
their ventral surface.
Balaenopterids diverged from the
other families of
suborder Mysticeti, also called...
- that
juvenile megalodon may have
occasionally attacked much
larger balaenopterid whales.
Three tooth marks apparently from a 4-to-7-meter (13 to 23 ft)...
- by
which baleen is used
differs among species (gulp-feeding
within balaenopterids, skim-feeding
within balaenids, and
bottom plowing within eschrichtiids)...
-
separated from each other,
creating the
Antarctic Cir****polar Current.
Balaenopterids grew
bigger during this time, with
species like
Balaenoptera sibbaldina...
