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Oistodus
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Distacodontacea
Family:
Oistodontidae
Formal Genus Name and Reference:
Oistodus PANDER, 1856, p. 27
Type Species:
O. lanceolatus, SD Ulrich & BASSLER, 1926, p. 7
Images
(Click to enlarge in a new window)
Fig. 96, 3. *O. lanceolatus, L.Ord., Eu. (Sweden), three types of clements forming transition series; 3a,b, lat. views, X56, X35; 3c, post. view, X110 (Van Wamel, 1974).
Synonyms
Geographic Distribution
Eu.-N.Am.-S.Am.
Age Range
Beginning Stage in Treatise Usage:
L.Ord.
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
M.Ord.
Ending International Stage:
Darriwilian
Fraction Up In Ending Stage:
100
Ending Date:
458.18
Description
Elements hyaline, lateral costae not developed as distinct processes, cusp with one or several lateral costae. Modified alate clement nearly symmetrical. [Apparatus reconstruction: LINOSTROM, 1971.]
References
Pander, C. H., 1856, Monographie der fossilen Fische des silurischen Systems der russischbaltischen Gouvernements: Akad. Wiss., St. Petersburg, 91 p., 1 text-fig., 7 pl .
Museum or Author Information
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Distacodontacea
Family:
Oistodontidae
Formal Genus Name and Reference:
Oistodus PANDER, 1856, p. 27
Type Species:
O. lanceolatus, SD Ulrich & BASSLER, 1926, p. 7
Images
(Click to enlarge in a new window)
Fig. 96, 3. *O. lanceolatus, L.Ord., Eu. (Sweden), three types of clements forming transition series; 3a,b, lat. views, X56, X35; 3c, post. view, X110 (Van Wamel, 1974).
Synonyms
Geographic Distribution
Eu.-N.Am.-S.Am.
Age Range
Beginning Stage in Treatise Usage:
L.Ord.
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
M.Ord.
Ending International Stage:
Darriwilian
Fraction Up In Ending Stage:
100
Ending Date:
458.18
Description
Elements hyaline, lateral costae not developed as distinct processes, cusp with one or several lateral costae. Modified alate clement nearly symmetrical. [Apparatus reconstruction: LINOSTROM, 1971.]
References
Pander, C. H., 1856, Monographie der fossilen Fische des silurischen Systems der russischbaltischen Gouvernements: Akad. Wiss., St. Petersburg, 91 p., 1 text-fig., 7 pl .