- Fish
portal Actinopteri (/æktɪˈnɒptəraɪ/) is the
sister group of
Cladistia (bichirs) in the
class Actinopterygii (ray-finned fish).
Dating back to the...
-
sister group to all
other extant ray-finned
fishes (
Actinopteri). They
likely diverged from
Actinopteri at
least 330
million years ago. A
closely related...
-
summarized as follows: Cladistia,
which include bichirs and
reedfish Actinopteri,
which include: Chondrostei,
which include Acipenseriformes (paddlefishes...
-
Actinopteri...
- of
living Actinopterygii, and are
thought to have
diverged from the
Actinopteri, the
group which includes all
other living ray
finned fish, by the Carboniferous...
- The
Hasle Formation is a
geologic formation on the
island on Bornholm, Denmark. It is of
early to late
Pliensbachian age.
Vertebrate fossils have been...
-
which allowed them to gulp air
under oxygen-poor conditions. In the
Actinopteri (ray-finned fish
minus the bichirs) the
lungs evolved into a swim bladder...
-
compensate for the difference, or they will sink. A
defining feature of
Actinopteri (Chondrostei,
Holostei and teleosts) is the swim bladder. Originally...
-
Cladistia Actinopteri...
- The
Drzewica Formation (also
called Drzewica Series, Polish:
seria drzewicka gen.
serii drzewickiej and in
older literature Bronów Series, Polish: seria...
