Welcome to the Treatise on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Prioniodus
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Prioniodontacea
Family:
Prioniodontidae
Formal Genus Name and Reference:
Prioniodus PANDER, 1856, p. 29
Type Species:
*P. elegans; SD MILLER, 1889, p. 315
Images
(Click to enlarge in a new window)
Synonyms
Geographic Distribution
Eu.-N.Am.-S.Am.-Australia.
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
Diagnosis as for family = Apparatus sexi- or septimembrate; P elements pastinate, with 3 denticulate processes; M elements geniculate, in some species denticulate above anterobasal corner; S elements forming transition series from bipennate through tertiopedate and alate to quadriramate units, all with denticulate processes, distinct cusp, and basal cavity extending along entire length of processes.
References
Museum or Author Information
Classification
Phylum:
Conodonta
Class:
Conodonta
Order:
Conodontophorida
Superfamily:
Prioniodontacea
Family:
Prioniodontidae
Formal Genus Name and Reference:
Prioniodus PANDER, 1856, p. 29
Type Species:
*P. elegans; SD MILLER, 1889, p. 315
Images
(Click to enlarge in a new window)Synonyms
Geographic Distribution
Eu.-N.Am.-S.Am.-Australia.
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
Diagnosis as for family = Apparatus sexi- or septimembrate; P elements pastinate, with 3 denticulate processes; M elements geniculate, in some species denticulate above anterobasal corner; S elements forming transition series from bipennate through tertiopedate and alate to quadriramate units, all with denticulate processes, distinct cusp, and basal cavity extending along entire length of processes.