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Xenodiscoides
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ceratitida
Suborder:
Ceratitina
Superfamily:
Noritaceae
Family:
Flemingitidae
Formal Genus Name and Reference:
Xenodiscoides SPATH, 1930
Type Species:
Xenodiscus perplicatus FRECH, 1905
Images
(Click to enlarge in a new window)
Fig. 168,5. *X. perplicatus (Frech), 5a, X0.8, 5b, X2 (156*)
Synonyms
Geographic Distribution
Salt.R.
Age Range
Beginning Stage in Treatise Usage:
Scyth.(Flemingitan)
Beginning International Stage:
Olenekian
Fraction Up In Beginning Stage:
0
Beginning Date:
249.88
Ending Stage in Treatise Usage:
Scyth.(Flemingitan)
Ending International Stage:
Olenekian
Fraction Up In Ending Stage:
48.9
Ending Date:
248.32
Description
Strongly ribbed shells resembling the inner whorls of Flemingites, but without strigation, venter rounded or subtabulate. Suture slightly simpler than in Flemingiles.
References
Spath, L. F., 1930, The Eotriassic invertebrate fauna of East Greenland: Meddel. om Grønland, Band 83, p. 1-90, pl. 1-12.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ceratitida
Suborder:
Ceratitina
Superfamily:
Noritaceae
Family:
Flemingitidae
Formal Genus Name and Reference:
Xenodiscoides SPATH, 1930
Type Species:
Xenodiscus perplicatus FRECH, 1905
Images
(Click to enlarge in a new window)
Fig. 168,5. *X. perplicatus (Frech), 5a, X0.8, 5b, X2 (156*)
Synonyms
Geographic Distribution
Salt.R.
Age Range
Beginning Stage in Treatise Usage:
Scyth.(Flemingitan)
Beginning International Stage:
Olenekian
Fraction Up In Beginning Stage:
0
Beginning Date:
249.88
Ending Stage in Treatise Usage:
Scyth.(Flemingitan)
Ending International Stage:
Olenekian
Fraction Up In Ending Stage:
48.9
Ending Date:
248.32
Description
Strongly ribbed shells resembling the inner whorls of Flemingites, but without strigation, venter rounded or subtabulate. Suture slightly simpler than in Flemingiles.
References
Spath, L. F., 1930, The Eotriassic invertebrate fauna of East Greenland: Meddel. om Grønland, Band 83, p. 1-90, pl. 1-12.