Discoaster signus

Bukry, 1971a Mar 24, 2022

Discoaster signus, Middle Miocene, Antalya-Manavgat Road, Turkey (size: 11.6 µm)

Set number: 1394

  • Discoaster signus 26915 1
  • Discoaster signus 26914 2
  • Discoaster signus 26917 3
  • Discoaster signus 26916 4
  • Discoaster signus 26920 5
    10µm
Discoaster signus, Middle Miocene, DSDP Leg 25, Site 242, Mozambique Channel (Davie Ridge), Indian Ocean
Final Epithet
Discoaster signus Bukry, 1971a
Basionym

Discoaster signus Bukry, 1971a

References

Bukry, D. 1971a. Discoaster evolutionary trends. Micropaleontology 17: 43-52.

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
Biostratigraphy
  • Phanerozoic
    • Cenozoic
      • Neogene
        • Miocene
          • Middle Miocene
            • Serravalian
            • Langhian
Stratigraphic Range
Langhian - Serravalian
Age (Ma)
15.99? - 11.63?
Holotype
Discoaster signus 26916

Discoaster signus Bukry, 1971a

Middle Miocene

DSDP Leg 6, Site 54, Iwo Jima Ridge, Philippine Sea, Pacific Ocean