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Biformites
Classification
Phylum:
Trace Fossils and Problematica
Class:
Trace Fossils
Formal Genus Name and Reference:
Biformites LINCK, 1949, p. 44
Type Species:
*B. insolitus, OD
Images
(Click to enlarge in a new window)
Fig. 29,3. *B. insolitus, U.Trias.(M.Keuper), Ger.; 3a, X0.8; 3b, X1 (schem.) (Linck, 1949b).
Synonyms
Geographic Distribution
Penn., USA (Okla.) ; U.Trias. (M.Ketlper) , Eu.(S.Ger.)
Age Range
Beginning Stage in Treatise Usage:
Penn., U.Trias.(M.Keuper)
Beginning International Stage:
Bashkirian
Fraction Up In Beginning Stage:
0
Beginning Date:
323.4
Ending Stage in Treatise Usage:
U.Trias.(M.Keuper)
Ending International Stage:
Norian
Fraction Up In Ending Stage:
100
Ending Date:
205.74
Description
Bimorphous form, consisting of narrow section, partly divided by longitudinal furrows, continuing into wider section with prominent transverse ribs, resembles shafted hand grenade, fillings visible at lower surface of layers. [According to SEILACHER (1955), dwelling burrow.]
References
Museum or Author Information
Classification
Phylum:
Trace Fossils and Problematica
Class:
Trace Fossils
Formal Genus Name and Reference:
Biformites LINCK, 1949, p. 44
Type Species:
*B. insolitus, OD
Images
(Click to enlarge in a new window)
Fig. 29,3. *B. insolitus, U.Trias.(M.Keuper), Ger.; 3a, X0.8; 3b, X1 (schem.) (Linck, 1949b).
Synonyms
Geographic Distribution
Penn., USA (Okla.) ; U.Trias. (M.Ketlper) , Eu.(S.Ger.)
Age Range
Beginning Stage in Treatise Usage:
Penn., U.Trias.(M.Keuper)
Beginning International Stage:
Bashkirian
Fraction Up In Beginning Stage:
0
Beginning Date:
323.4
Ending Stage in Treatise Usage:
U.Trias.(M.Keuper)
Ending International Stage:
Norian
Fraction Up In Ending Stage:
100
Ending Date:
205.74
Description
Bimorphous form, consisting of narrow section, partly divided by longitudinal furrows, continuing into wider section with prominent transverse ribs, resembles shafted hand grenade, fillings visible at lower surface of layers. [According to SEILACHER (1955), dwelling burrow.]