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Eridites
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Nautiloidea
Order:
Orthocerida
Superfamily:
Pseudorthocerataceae
Family:
Pseudorthoceratidae
Subfamily:
Spyroceratinae
Formal Genus Name and Reference:
Eridites ZHURAVLEVA, 1961, p. 55
Type Species:
E. astrovae, OD
Images
(Click to enlarge in a new window)
Fig. 178, 1. *E. astrovae, long. sec., venter on right, x1 (214b)
Synonyms
Geographic Distribution
USSR (Podolia)
Age Range
Beginning Stage in Treatise Usage:
M.Sil. (Wenlock.)
Beginning International Stage:
Sheinwoodian
Fraction Up In Beginning Stage:
0
Beginning Date:
432.93
Ending Stage in Treatise Usage:
M.Sil. (Wenlock.)
Ending International Stage:
Homerian
Fraction Up In Ending Stage:
100
Ending Date:
426.74
Description
Faintly cyrtoconic smooth-surfaced longicones of circular transverse section, Sutures simple, sloping posteriorly from dorsum to venter, Siphuncle slightly eccentric, height about one-fifth conch height, Segments longer than wide, slightly inflated, septal necks suborthochoanitic, Endosiphuncular annuli apparently incomplete, developed into fused parietal deposits ventrally, but absent dorsally, Cameral deposits well developed ventrally, seemingly absent dorsally
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Nautiloidea
Order:
Orthocerida
Superfamily:
Pseudorthocerataceae
Family:
Pseudorthoceratidae
Subfamily:
Spyroceratinae
Formal Genus Name and Reference:
Eridites ZHURAVLEVA, 1961, p. 55
Type Species:
E. astrovae, OD
Images
(Click to enlarge in a new window)
Fig. 178, 1. *E. astrovae, long. sec., venter on right, x1 (214b)
Synonyms
Geographic Distribution
USSR (Podolia)
Age Range
Beginning Stage in Treatise Usage:
M.Sil. (Wenlock.)
Beginning International Stage:
Sheinwoodian
Fraction Up In Beginning Stage:
0
Beginning Date:
432.93
Ending Stage in Treatise Usage:
M.Sil. (Wenlock.)
Ending International Stage:
Homerian
Fraction Up In Ending Stage:
100
Ending Date:
426.74
Description
Faintly cyrtoconic smooth-surfaced longicones of circular transverse section, Sutures simple, sloping posteriorly from dorsum to venter, Siphuncle slightly eccentric, height about one-fifth conch height, Segments longer than wide, slightly inflated, septal necks suborthochoanitic, Endosiphuncular annuli apparently incomplete, developed into fused parietal deposits ventrally, but absent dorsally, Cameral deposits well developed ventrally, seemingly absent dorsally