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Elrodoceras is a
genus of armenoceratids, (Cephalopoda, Actinocerida), that grew
fairly large,
characterized by a
straight s****,
slightly curved at the...
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siphuncle like that of
Elrodoceras.
According to Teichert, 1964, in the
Treatise part K,
Monocyrtoceras along with
Elrodoceras and
Armenoceras forms one...
- respectively, from the
upper Middle and
Upper Ordovician, and Monocyrtoceras,
Elrodoceras, and
Megadiscoceras from the Silurian, The Armenoceratidae, Armenoceras...
-
dufoei – type
locality for
species †Ellesmeroceras †Ellipsocephalus †
Elrodoceras †Encrinurus †Entomaspis †Eophacops †Eophacops
handwerki †Eospirifer †Eospirifer...
- †Eleusoceras †Elkanoceras †Ellesmeroceras †Ellinoceras †Elpisoceras †
Elrodoceras †Encoiloceras †Endoceras †Endocycloceras †Endodiscosorus †Endolobus †Endoplanoceras...
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Possible Silurian derivatives include Megadiscosorus, Monocyrtoceras, and
Elrodoceras although some may turn our to have
Nybyoceras as the progenitor. Flower...
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Troedsson 1926;
early M Ord - Sil. Armenoceras, Nybyoceras, Selkirkoceras,
Elrodoceras Gonioceratidae, late Mid Ord, N Am.
Gonioceras (from
early Armenoceratid)...
- †Ellipsocephalus †Ellsworthoconus †Ellsworthoconus
barabuensis †
Elrodoceras †
Elrodoceras abnorme †Elvinia †Encrinurus †Encrinurus
egani †Encrinurus nereus...
- †Ecdyceras †Edmondia †Edon †Eldredgeops †Eldredgeops rana †Elita †Elpe †
Elrodoceras †Emmonsia †Endoceras †Erettopterus †Erpetosaurus †Eucalyptocrinites †Euomphalus...
- †Elita †Elpe †Elpe
cincinnatiensis †Elpe
irregularis †Elpe
ulrichi †
Elrodoceras †Emmonsia †Emmonsia
arbuscula †Emmonsia
radiciformis †Endelocrinus †Endelocrinus...
