Ceratocyrtis sp. E

Trubovitz, Sarah, Renaudie, Johan, Lazarus, David & Noble, Paula, 2022, Late Neogene Lophophaenidae (Nassellaria, Radiolaria) from the eastern equatorial Pacific, Zootaxa 5160 (1), pp. 1-158 : 36

Ceratocyrtis sp. E

Plate 13, Figs. 7A – 8 .

Ceratocyrtis sp 9 , Trubovitz et al., 2020, supplementary data 7.

Remarks. This species has at least two long, thin conical spines on its cephalis, one of which is an extension of the apical spine. It has a broad, dome-shaped thorax, with semi-irregular pores that do not increase in size toward the base, but do have the tendency to become elongated. The small cephalis, overall skeletal proportions, and dendritic axobate clearly place this species in Ceratocyrtis , but it does not match any species descriptions we are aware of.

Material examined. 14 specimens observed from samples 321-1337D-23H- 6, 134–137cm (Late Miocene), 321-1337A-18H-6, 77–80cm (Late Miocene), 321-1337A-14H-7, 39–42cm (Late Miocene), 321-1337A-10H-2, 91–94cm (Early Pliocene), and 321-1337A-5H-5, 11–14cm (Late Pliocene).

Range. Late Miocene—Late Pliocene in the EEP ( Table 1 ).

Figures

FIGURE 7. Internal skeletal structure of Arachnocorys umbellifera (Haeckel, 1862) Petrushevskaya, 1971.

FIGURE 8. Internal skeletal structure of Botryopera amabie n. sp.