From Suzuki Paleotax db:
1908 Xiphatractus brevispina n. sp. Carnevale p. 20-21, pl. 3, fig. 11
1978 Xiphatractus brevispina Carnevale Sanfilippo et al. p. 757, pl. 1, figs. 12, 13
Catalog entries: Xiphatractus brevispina
Geological Range:
Last occurrence (top): within Neogene Period (2.59-23.03Ma, top in Piacenzian stage). Data source: Lazarus et al. 2015 - "N age group"
First occurrence (base): within Neogene Period (2.59-23.03Ma, base in Aquitanian stage). Data source: Lazarus et al. 2015 - "N age group"
Plot of occurrence data:
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Xiphatractus brevispina compiled by the radiolaria@mikrotax project team viewed: 21-6-2025
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