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Scandodus
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Distacodontacea
Family:
Drepanoistodontidae
Formal Genus Name and Reference:
Scandodus LINDSTRÖM, 1955, p. 592
Type Species:
S. furnishi, OD
Images
(Click to enlarge in a new window)
Fig. 91, 3. *S. furnishi, Didymograptus balticus Subzone, Eu. (Sweden), 3 a, nongeniculate element, lat. view, 3 b, c, geniculate elements, lat. views: X48 (Bergström, n).
Synonyms
Geographic Distribution
Eu.-?N.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:
L. Ord.
Ending International Stage:
Floian
Fraction Up In Ending Stage:
100
Ending Date:
471.26
Description
Apparatus trimembrate, composed of largely hyaline elements forming a transition series. Geniculate clements slightly recurved to reclined, with somewhat twisted cusp and short base; basal cavity opening toward one side. One type of nongeniculate element with suberect cusp and short base; another type with recurved cusp and rdatively longer base. All elements without lateral costae and with basal cavity restricted to base; white matter in cusp usually present only as thin ropelike growth axis. [Scandodus is distinguished from Oistodus by lack of prominent lateral costae and dominance of nongeniculate elements in apparatus; from Drepanoistodus by being dominantly hyaline and by appearance of geniculate elements; and from Paltodus by lack of distinct lateral costae. Apparatus reconstruction: LINDSTROM, 1971.]
References
Lindström, Maurits, 1955, Conodonts from the lowermost Ordovician strata of south-central Sweden: Geol. Foeren. Stockholm Foerh., v. 76, h. 4 REFERENCES, , no. 21, p. 517-603, 6 text-fig., 10 pl.
Museum or Author Information
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Distacodontacea
Family:
Drepanoistodontidae
Formal Genus Name and Reference:
Scandodus LINDSTRÖM, 1955, p. 592
Type Species:
S. furnishi, OD
Images
(Click to enlarge in a new window)
Fig. 91, 3. *S. furnishi, Didymograptus balticus Subzone, Eu. (Sweden), 3 a, nongeniculate element, lat. view, 3 b, c, geniculate elements, lat. views: X48 (Bergström, n).
Synonyms
Geographic Distribution
Eu.-?N.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:
L. Ord.
Ending International Stage:
Floian
Fraction Up In Ending Stage:
100
Ending Date:
471.26
Description
Apparatus trimembrate, composed of largely hyaline elements forming a transition series. Geniculate clements slightly recurved to reclined, with somewhat twisted cusp and short base; basal cavity opening toward one side. One type of nongeniculate element with suberect cusp and short base; another type with recurved cusp and rdatively longer base. All elements without lateral costae and with basal cavity restricted to base; white matter in cusp usually present only as thin ropelike growth axis. [Scandodus is distinguished from Oistodus by lack of prominent lateral costae and dominance of nongeniculate elements in apparatus; from Drepanoistodus by being dominantly hyaline and by appearance of geniculate elements; and from Paltodus by lack of distinct lateral costae. Apparatus reconstruction: LINDSTROM, 1971.]
References
Lindström, Maurits, 1955, Conodonts from the lowermost Ordovician strata of south-central Sweden: Geol. Foeren. Stockholm Foerh., v. 76, h. 4 REFERENCES, , no. 21, p. 517-603, 6 text-fig., 10 pl.