Welcome to the Conodonts subsite on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Ancyrognathus
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Polygnathacea
Family:
Polygnathidae
Formal Genus Name and Reference:
Ancyrognathus Branson & MEHL, 1934a, p. 240
Type Species:
A. symmetricus, OD
Images
(Click to enlarge in a new window)
Fig. 111, 5. A. triangularis Youngeuist, U.Dev. (A. triangularis Z., Sweetland Creek Sh.), USA (Iowa), Pa element, upper view, X27 (Klapper & Furnish, 1963).
Synonyms
Ancyroides
Geographic Distribution
Eu.-N.Afr.-N.Am.-Australia
Age Range
Beginning Stage in Treatise Usage:
U.Dev. (Frasn.-low.Famenn.)
Beginning International Stage:
Frasnian
Fraction Up In Beginning Stage:
0
Beginning Date:
378.9
Ending Stage in Treatise Usage:
U.Dev. (Frasn.-low.Famenn.)
Ending International Stage:
Famennian
Fraction Up In Ending Stage:
50
Ending Date:
365.2
Description
Pa element pastiniplanate; outer latera! lobe directed somewhat posteriorly, but absent in late species. [Only Pa element is recognized.]
References
Museum or Author Information
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Polygnathacea
Family:
Polygnathidae
Formal Genus Name and Reference:
Ancyrognathus Branson & MEHL, 1934a, p. 240
Type Species:
A. symmetricus, OD
Images
(Click to enlarge in a new window)
Fig. 111, 5. A. triangularis Youngeuist, U.Dev. (A. triangularis Z., Sweetland Creek Sh.), USA (Iowa), Pa element, upper view, X27 (Klapper & Furnish, 1963).
Synonyms
Ancyroides
Geographic Distribution
Eu.-N.Afr.-N.Am.-Australia
Age Range
Beginning Stage in Treatise Usage:
U.Dev. (Frasn.-low.Famenn.)
Beginning International Stage:
Frasnian
Fraction Up In Beginning Stage:
0
Beginning Date:
378.9
Ending Stage in Treatise Usage:
U.Dev. (Frasn.-low.Famenn.)
Ending International Stage:
Famennian
Fraction Up In Ending Stage:
50
Ending Date:
365.2
Description
Pa element pastiniplanate; outer latera! lobe directed somewhat posteriorly, but absent in late species. [Only Pa element is recognized.]