- (458–444
million years ago). The
earliest confirmed modern sharks (
selachimorphs) are
known from the
Early Jur****ic
around 200 million
years ago, with...
-
Catshark Parvodus P.
heterodon Lonchidiid hybodont shark Protospinax Indeterminate Selachimorph shark Vectiselachos V.
ornatus Lonchidiid hybodont shark...
-
Duffinselache (Duffin's shark) is an
extinct genus of
basal selachimorph elasmobranchii cartilaginous fish
known from the Late Tri****ic (Rhaetian stage)...
- of fish, such as the
number of fins or
scales A shark, also
called a "
selachimorph", can be
described as all of the following:
Animal – multicellular, eukaryotic...
- Andreev,
Plamen S.; Cuny,
Gilles (2012-03-01). "New Tri****ic stem
selachimorphs (Chondrichthyes, Elasmobranchii) and
their bearing on the evolution...
- ISSN 2056-2799.
Plamen S.
Andreev &
Gilles Cuny (2012). "New Tri****ic stem
selachimorphs (Chondrichthyes, Elasmobranchii) and
their bearing on the evolution...
- Synechodontiformes.
Plamen S.
Andreev &
Gilles Cuny (2012). "New Tri****ic stem
selachimorphs (Chondrichthyes, Elasmobranchii) and
their bearing on the evolution...
-
clade Selachimorpha and are not
considered "true" sharks.
Compared with
selachimorph sharks, the
ctenacanths had
greatly enlarged ornamented fin spines, proportionally...
- 01193.x.
Plamen S. Andreev;
Gilles Cuny (2012). "New Tri****ic stem
selachimorphs (Chondrichthyes, Elasmobranchii) and
their bearing on the evolution...
