-
common for the Ellesmerocerida,
Ellesmeroceras has
diaphragms within the
siphuncle tube. The type species,
Ellesmeroceras scheii,
named by Foeste, 1921...
- Ordovician,
characterized by an
orthoconic adult stage,
similar to
Ellesmeroceras, but with the
dorsal side of the
adult living chamber somewhat convex...
-
genus of small, slender,
cylindrical Ellesmeroceratids that
resemble Ellesmeroceras but are
smaller and
proportionally narrower. Septa, as
typical for ellesmerocerids...
-
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...
- type
locality for
species †Edmondia †Eldredgeops †Eldredgeops rana †
Ellesmeroceras †Endorioceras – type
locality for
genus Eocaudina †Error †Eryops †Euomphalus...
- were not very
different from
their Cambrian predecessors.
Specimens of
Ellesmeroceras and
possibly B****leroceras,
found in
Santa Rosita Formation, northwestern...
- †Discosorus †Earlandia †Edestus †Edmondia †Eldredgeops †Eldredgeops rana †
Ellesmeroceras †Encrinurus †Endoceras
Eocaudina †Eodictyonella †Eophacops †Eospirifer...
- †Curtognathus †Cyclonema †Cyptendoceras †Cyrtolites †Diplograptus †
Ellesmeroceras †Endoceras †Erratencrinurus †Fayettoceras –
tentative report †Flexicalymene...
- type
locality for
species †Edestus †Edmondia †Edops †Edops
craigi †
Ellesmeroceras †Empedias †Endoceras †Endolobus
Eocaudina †Eosyodon – type locality...
-
locality for
genus †Echinochiton
dufoei – type
locality for
species †
Ellesmeroceras †Ellipsocephalus †Elrodoceras †Encrinurus †Entomaspis †Eophacops †Eophacops...
