Discoaster aegyptiacus

El-Dawoody, 1988 Sept 15, 2026

Set number: 4561

  • Discoaster aegyptiacus 67913 1
  • Discoaster aegyptiacus 67923 2
  • Discoaster aegyptiacus 67927 3
  • Discoaster aegyptiacus 67921 4
  • Discoaster aegyptiacus 67914 5
  • Discoaster aegyptiacus 67922 6
  • Discoaster aegyptiacus 67928 7
  • Discoaster aegyptiacus 67920 8
  • Discoaster aegyptiacus 67918 9
  • Discoaster aegyptiacus 67917 10
  • Discoaster aegyptiacus 67911 11
  • Discoaster aegyptiacus 67912 12
  • Discoaster aegyptiacus 67919 13
  • Discoaster aegyptiacus 67916 14
  • Discoaster aegyptiacus 67926 15
  • Discoaster aegyptiacus 67909 16
  • Discoaster aegyptiacus 67910 17
  • Discoaster aegyptiacus 67925 18
    10µm
Discoaster aegyptiacus, Early Eocene, ODP Leg 171B, Site 1051A, Black Nose, Western North Atlantic

In the mobile mount
Final Epithet
Discoaster aegyptiacus El-Dawoody, 1988
Basionym

Discoaster aegyptiacus subsp. aegyptiacus El-Dawoody, 1988

Synonyms

Discoaster acutus Bown, 2005d

Discoaster salisburgensis var. acutus (Bown, 2005) Bralower & Self-Trail, 2016

References

Bown, P. R. 2005d. Palaeogene calcareous nannofossils from the Kilwa and Lindi areas of coastal Tanzania (Tanzania Drilling Project 2003-4). Journal of Nannoplankton Research 27(1): 21-95.

Bralower, T. J. & Self-Trail, J. 2016. Nannoplankton malformation during the Paleocene-Eocene Thermal Maximum and its paleoecological and paleoceangraphic significance. Paleoceanography. 31: 1-17.

El-Dawoody, A. S. 1988. New calcareous nannoplankton species from the Paleocene rocks in souhern Egypt. Bulletin of the Faculty of Science, Cairo University. 56: 549-563.

Taxonomy
Discoaster
Neostellates produce interference colours
Neostellates, 3 to 6 long arm, with simple tips
Neostellates, 4 to 6 long arms with bifurcation
Neostellates, 4 to 8 arms with bifurcation
Neostellates, 6 short arms with simple tips
Neostellates, bulged central area with proximal ridges
Neostellates, bulged central area with sutural & proximal ridges
Neostellates, featureless central area with distal ridges
Neostellates, proximal ridges give rise to a third furcation
Neostellates, with distal & proximal knobs
Rosettes, >10 arms
Rosettes, proximal & distal processes, >10 arms
Stellates, 4 to 5 arms with bifurcation
Stellates, 5 to 9 arms with bifurcation & nodes
Stellates, often curved arms with simple tips
Uncategorised
Biostratigraphy
  • Phanerozoic
    • Cenozoic
      • Paleogene
        • Eocene
          • Early Eocene
            • Ypresian
Stratigraphic Range
Ypresian
Age (Ma)
56.00 - 55.80