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Distribution of sponge spicule types, Goniothecium odontella and Diploneis cf. bomboides in selected spicule clusters from ODP Leg 112 holes (Table 1)

Publication Date
DOI: 10.1594/pangaea.745501
  • 112-685A
  • 112-688A
  • Diploneis Cf
  • Bomboides
  • Drilling
  • Goniothecium Odontella
  • Joides Resolution
  • Leg112
  • Nannofossil Zone
  • Ocean Drilling Program
  • Odp
  • Odp Sample Designation
  • Sample Code/Label
  • Silicoflagellate Zone
  • South Pacific Ocean
  • Sponge Spicules Microscleres
  • Sponge Spicules Monaxons
  • Sponge Spicules Tetraxons


Clusters of sponge spicules found in Quaternary deep-water sediments at Sites 685 and 688 off Peru represent single individuals of small sponges or fragments of larger sponges. The spicule assemblages constituting these clusters probably represent a few demosponge species of the subclass Tetractinomorpha and order Astrophorida, because triaenes and microscleric euasters, as well as abundant monaxons, are present. As proved by incorporated Neogene diatoms, these spicule clusters are allochthonous. The sponge individuals probably inhabited deeper neritic environments during late Neogene time.

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