-
common for the Ellesmerocerida,
Ellesmeroceras has
diaphragms within the
siphuncle tube. The type species,
Ellesmeroceras scheii,
named by Foeste, 1921...
-
diversified during that time into a
variety of
forms and genera. Some like
Ellesmeroceras and
Eremoceras were
straight s****ed,
following the
example of Ectenolites...
- Ordovician,
characterized by an
orthoconic adult stage,
similar to
Ellesmeroceras, but with the
dorsal side of the
adult living chamber somewhat convex...
- were not very
different from
their Cambrian predecessors.
Specimens of
Ellesmeroceras and
possibly B****leroceras,
found in
Santa Rosita Formation, northwestern...
- †Ectenolites †Edmondia –
tentative report †Eldredgeops †Eldredgeops rana †
Ellesmeroceras †Elliptocephala †Emmonsia †Encrinurus †Endoceras †Eoagnostus †Eoarthropleura...
-
dufoei – type
locality for
species †Elita †Elita
subundifera †
Ellesmeroceras †
Ellesmeroceras hotchkissi †Ellipsocephalus †Ellsworthoconus †Ellsworthoconus...
- †Curtognathus †Cyclonema †Cyptendoceras †Cyrtolites †Diplograptus †
Ellesmeroceras †Endoceras †Erratencrinurus †Fayettoceras –
tentative report †Flexicalymene...
- †Edrioaster †Edrioaster
bigsbyi †Ellesmeria †Ellesmeria
scobeyi †
Ellesmeroceras †
Ellesmeroceras winoni**** †Ellipsocephaloides †Ellipsocephaloides
curtus †Ellipsocephaloides...
- type
locality for
species †Edmondia †Eldredgeops †Eldredgeops rana †
Ellesmeroceras †Endorioceras – type
locality for
genus Eocaudina †Error †Eryops †Euomphalus...
- †Eifeloceras †Ekwanoceras †Elaphoceras †Eldroceras †Eleusoceras †Elkanoceras †
Ellesmeroceras †Ellinoceras †Elpisoceras †Elrodoceras †Encoiloceras †Endoceras †Endocycloceras...
