-
fossils are of
teeth and come from the
Devonian period. The only
living holocephalans are the
chimaeras (Chimaeriformes),
though during the late Paleozoic...
-
others placed it as an elasmobranch,
originating slightly later than the
holocephalans. A few
studies even
suggested that it was a more
derived elasmobranch...
- Heithaus,
Michael (eds.), "Phylogeny,
Biology and
classification of
Extant Holocephalans",
Biology of
Sharks and
Their Relatives,
Second Edition, vol. 20123460...
- the most
bizarre radiation of
holocephalans at this time was that of the iniopterygiformes, an
order of
holocephalans that
greatly resembled modern day...
- or hooks,
which may hold them in
place during co****tion. Many male
holocephalans,
including living chimaeras, have
cephalic claspers (tenacula) on their...
-
Psammodontidae is an
extinct family of
holocephalans (sometimes
referred to as bradyodonts)
known from the
Carboniferous and
Permian periods. It is the...
-
Cochliodontiformes are an
order of
extinct holocephalans (historically
referred to as bradyodonts)
known from the Devonian,
Carboniferous and Permian...
- (sometimes
referred to as Ag****izodontidae) is an
extinct family of
holocephalans within the
order Eugeneodontida.
Members of the
Helicoprionidae possessed...
-
Menaspiformes are an
extinct order of
holocephalans known from the
Carboniferous and
Permian periods, with a
possible member, Listracanthus,
known from...
- 1993 1 1 †Protacrodonti-
formes †Cladoselachi-
formes Dean, 1894 1 2
Holocephalans, and
potential members of the symmoriida. †Xenacanthiformes Xenacanths...
