-
genera (e.g. Paleoceras), the
septa are
uniformly spaced. S**** of
ellesmerocerids are
typically smooth and
compressed and vary in form. They may be breviconic...
-
penetrated by a
narrow tube
which may
contain diaphragms reminiscent of the
Ellesmerocerid ancestor.
Endoceras was
named by Hall in 1847.
Distribution is widespread...
-
Endocerids evolved from the
earlier ellesmerocerids, most
likely from a
genus similar to Pachendoceras. This
ellesmerocerid gave rise to Proendoceras, the...
- Cameroceras,
shown feeding on the
tarphycerid Aphetoceras,
while a
quartet of
ellesmerocerid Cyclostomiceras swim by.
Scientific classification Domain: Eukaryota...
- cephalopods, and,
among nautiloid cephalopods, is
prevalent among the
ellesmerocerids, endocerids, actinocerids, orthoceratoids, and bactritids. Orthocones...
-
Clarkoceras is a
genus of
breviconic ellesmerocerid cephalopods, one of only two
genera known to have
crossed from the Late Cambrian, Trempealeauan, into...
- but are
smaller and
proportionally narrower. Septa, as
typical for
ellesmerocerids, are
close spaced with
shallow lobes on
either flank. The body chamber...
- ****essment. The recently-named
order Bisonocerida shares traits with
ellesmerocerids and endocerids, and some
studies have
placed it as a
member of Multiceratoidea...
- A
cyclostomiceratid ellesmerocerid Saloceras S.
chinianense Euloma filacovi Zone Late
Tremadocian An
eothinoceratid ellesmerocerid S.
murvielense Euloma...
- is a
genus of
cephalopods from the
Lower Ordovician included in the
ellesmerocerid family Protocycloceratidae according to
Rousseau Flower in 1964. The...
