Lophophaena cf. decacantha ( Haeckel, 1887 ) Petrushevskaya, 1971

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 : 56

Lophophaena cf. decacantha ( Haeckel, 1887) Petrushevskaya, 1971

Plate 27, Figs. 3A – 4C .

? Lophophaenoma cf. decacantha ( Haeckel, 1887) Petrushevskaya, 1971 , pl. 61, fig. 2.

Remarks. This species is similar to Lophophaena decacantha (Haeckel) Petrushevskaya , except that the top of the cephalis is not hyaline, and there are three horns on the cephalis rather than four. The two specimens we observed resemble a specimen illustrated by Petrushevskaya (1971) as Lophophaenoma cf. decacantha . Our specimens do not exhibit the strong ventral horn at the base of the cephalis, however, so it’s not certain that these individuals are conspecific.

Material examined. 2 specimens observed from sample 3H 2,103–106cm (Middle Pleistocene).

Range. Middle Pleistocene in the EEP ( Table 1 ).

Figures

FIGURE 3. Locality map of IODP Site U1337, where all samples for this study were collected. Map from Google EarthTM.

FIGURE 4. Examples of specimen measurements discussed in the Systematic Paleontology section of this study.