-
Symmoriiformes is an
extinct order of
cartilaginous fish.
Originally named Symmoriida by
Zangerl (1981), the name has
since been
corrected to Symmoriiformes...
- elasmobranchs,
recent studies have
found members of the shark-like "
symmoriiformes",
which may be paraphyletic, to be
early diverging relatives of Holocephali...
- †Hybodontiformes †Phoebodontiformes †Xenacanthida Ray
Shark Holocephali †Eugeneodontida †Iniopterygiformes †Petalodontiformes †
Symmoriiformes Chimaera Bony...
- †Hybodontiformes †Phoebodontiformes †Xenacanthida Ray
Shark Holocephali †Eugeneodontida †Iniopterygiformes †Petalodontiformes †
Symmoriiformes Chimaera Bony...
-
classification of
stethacanthids and
symmoriids difficult. More recently,
Symmoriiformes as a
whole has been
reclassified as part of Holocephali,
meaning that...
- †Hybodontiformes †Phoebodontiformes †Xenacanthida Ray
Shark Holocephali †Eugeneodontida †Iniopterygiformes †Petalodontiformes †
Symmoriiformes Chimaera Bony...
-
cartilaginous fishes closely related to, and
possibly nested within,
Symmoriiformes. They are
characterized by
having an
elongated body with a
spine in...
- †Hybodontiformes †Phoebodontiformes †Xenacanthida Ray
Shark Holocephali †Eugeneodontida †Iniopterygiformes †Petalodontiformes †
Symmoriiformes Chimaera Bony...
- (2009-03-12). "The spine-brush
complex in
symmoriiform sharks (Chondrichthyes;
Symmoriiformes), with
comments on
dorsal fin modularity".
Journal of
Vertebrate Paleontology...
- Symmoriidae,
Stethacanthidae and
Falcatidae are
included within the
Order Symmoriiformes and form a
monophyletic group.
Stethacanthids are a very
derived group...
