Distinguishing features: Like E. parvus but larger and with longer cross-arms. Medium sized, with blunt terminations to the cross-arms.
Taxonomy:
Farinacci & Howe catalog pages: E. collis *
Distinguishing features: Like E. parvus but larger and with longer cross-arms. Medium sized, with blunt terminations to the cross-arms.
Most likely ancestor: Eiffellithus parvus - at confidence level 3 (out of 5). Data source: Watkins & Bergen 2003.
Search data:Tags | LITHS: murolith, elliptical, CA: ca_disjunct, plate, process, diagonal cross, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent, |
Metrics | Lith size: 0->0µm; |
Geological Range:
Notes: Persists through the Late Cretaceous according Shamrock & Watkins (2009)
Last occurrence (top): within Late Albian Substage (100.50-107.59Ma, top in Albian stage). Data source: original description
First occurrence (base): within BC26 zone (103.27-104.06Ma, base in Albian stage). Data source: original description
Plot of occurrence data:
Hoffmann, N. (1970c). Taxonomische Untersuchungen an Coccolithen aus der Kreide Norddeutchlands anhand elektronenmikroskopischer Aufnamen. Hercynia. 7(1-3): 163-198. gs V O Shamrock, J. L. & Watkins, D. K. (2009). Evolution of the Cretaceous calcareous nannofossil genus Eiffellithus and its biostratigraphic significance. Cretaceous Research. 30(5): 1083-1102. gs Thibault, N. (2010). Calcareous nannofossils from the boreal Upper Campanian- Maastrichtian chalk of Denmark. Journal of Nannoplankton Research. 31(1): 39-56. gs V O Watkins, D. K. & Bergen, J. A. (2003). Late Albian adaptive radiation in the calcareous nannofossil genus Eiffelithus. Micropaleontology. 49(3): 231-252. gsReferences:
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Eiffellithus collis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 6-3-2021
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