Set number: 3866

  • Discoaster pugliesei 29650 1
  • Discoaster pugliesei 29649 2
  • Discoaster pugliesei 29640 3
  • Discoaster pugliesei 29642 4
  • Discoaster pugliesei 29653 5
  • Discoaster pugliesei 29651 6
  • Discoaster pugliesei 29641 7
  • Discoaster pugliesei 29643 8
  • Discoaster pugliesei 29647 9
  • Discoaster pugliesei 29648 10
  • Discoaster pugliesei 29644 11
  • Discoaster pugliesei 29645 12
    10µm
Discoaster pugliese, Middle Miocene, IODP Expedition 354, Hole U1451B, Bengal Fan, Indian Ocean

Holotype

Set number: 3867

  • Discoaster pugliesei 13473 1
  • Discoaster pugliesei 13471 2
  • Discoaster pugliesei 13475 3
  • Discoaster pugliesei 13472 4
  • Discoaster pugliesei 13476 5
  • Discoaster pugliesei 13474 6
    10µm
Discoaster pugliese, Middle Miocene, Walker Ridge, Gulf of Mexica
Final Epithet
Discoaster pugliese Varol & Bowman, 2024
Basionym

Discoaster pugliese Varol & Bowman, 2024

Synonyms

2017 Discoaster stellimicros, Pospichal & Bergen in De Kaenel et al. (pro parte), pp. 229-230, Pl. 5, Fig. 26 (paratype); non Pl. 5, Figs. 27-28 (holotype)

Diagnosis

Small species have a relatively large central area decorated with prominent sutural ridges and deep cavities. The inter-arm area is shallow and rounded. Distinct proximal ridges form a platform that adorns the strongly bulging proximal side. The arms of the segments are very short (less than half of the diameter of the central area) and terminate in obtuse-angled shallow bifurcation.

Etymology

In honour of Raimondo Pugliese, Wellsite Geologist, Miami, Florida, USA.

Dimensions Of Holotype

Maximum diameter: 6.64 µm, Diameter of the central area: 4.08 µm, Length of the arms: 1.28 µm (including bifurcation); diameter of inter-arm area: 0.96 (measurements from bright field micrograph).

Remarks

Discoaster pugliesei differs from Discoaster catillomicros and Discoaster stellimicros by having round, almost enclosed inter-arm areas, whilst the latter species have much wider than deeper inter-arm areas. It is difficult to determine if Discoaster catillomicros has a proximal bulging and ridges because de Kaenel et al. (2017) provided no information about its proximal sides.

References

Varol, O. & Bowman, A. R. 2024. The New Middle Miocene Genus Olladiscoaster, and Related and Associated Discoasters. Grzybowski Foundation Special Publication, 28: 1-103 pp.