Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
![]() | Sphenolithus capricornutus Small with two, diverging, apical spines, and usually a flaring base. | |||
![]() | Sphenolithus cometa Narrow proximal shield and apical spine with slightly diverging elements | |||
![]() | Sphenolithus multispinatus Short wide proximal shield and apical spine with strongly diverging elements |
Taxonomy:
Distinguishing features: Apical spine formed of radiating elements
Farinacci & Howe catalog pages: capricornutus group [no catalog entry yet]
Search data:Tags | LITHS: |
Metrics | Lith size: 0->0µm; |
Geological Range:
Last occurrence (top): in mid part of Langhian Stage (49% up, 14.9Ma, in Langhian stage). Data source: Total of range of species in this database
First occurrence (base): in upper part of Chattian Stage (73% up, 24.4Ma, in Chattian stage). Data source: Total of range of species in this database
Plot of occurrence data:
![]() |
S. capricornutus group compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 14-4-2021
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1540 Go to Archive.is to create a permanent copy of this page - citation notes |