- (fish)") is an
order of
scaly placoderms.
Unlike most
other placoderms, the
rhenanids'
armor was made up of a
mosaic of
unfused scales and tubercles. The patterns...
-
comparisons of
skull anatomies,
rhenanids are now
considered to be the
sister group of the antiarchs. When
rhenanids die,
their "mosaics" come apart,...
- is an
extinct group of chimaera-like
placoderms closely related to the
rhenanid placoderms. Superficially, the
acanthoracids resembled scaly chimaeras...
-
Jagorina pandora is a
rhenanid placoderm of
Upper Frasnian Germany. As with
other rhenanids, it was a flattened, skate-like fish
protected in an armor...
- be
rhenanids) had
armor made up of a
mosaic of
unfused bony
plates and scales.
Because their armor was so fragile, few
intact examples of
rhenanids have...
- are
dorsal finned like the lumpsuckers, yet they are not related. The
Rhenanids became extinct over 200
million years before the
first stingrays evolved...
-
Asterosteus is a
genus of
rhenanid placoderm from the Eifelian. The type species, A. stenocephalus, is
known from an
incomplete skull from
Middle Devonian...
-
Nefudina qalibahensis is a
rhenanid placoderm from the
early Emsian during the
Early Devonian epoch of
Northeastern Saudi Arabia. It is
known from skull...
-
superficial similarities between its tubercles, and the
tubercles of the
rhenanids, some
paleontologists believe that
there are very few
concrete reasons...
-
Bolivosteus chacomensis is a
rhenanid placoderm from the
Eifelian of Bolivia, and is the only
placoderm known from the “Malvinokaffric”
invertebrate faunas...
