Lophophaena amictoria Renaudie and Lazarus, 2015

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 : 53

Lophophaena amictoria Renaudie and Lazarus, 2015

Plate 21, Figs. 1A – 3B .

Peridium spp. , Lazarus and Pallant, 1989 (partim.), pl. 2, fig. 15.

Lophophaena amictoria n. sp., Renaudie and Lazarus, 2015, pl. 8 figs. 1–3.

Lophophaena clevei, Trubovitz et al., 2020 , supplementary data 7.

Remarks. This species has a similar structure to Lophophaena clevei Petrushevskaya, 1971 , and we misidentified it as such in our previous study. However, L. amictoria differs from L. clevei in that it is larger overall, has a more globular cephalis shape, and a relatively inflated neck area.

Range. Middle Miocene—Late Pleistocene in the EEP ( Table 1 ). Early Miocene—Pleistocene in the Southern Ocean. Specimens from Lazarus and Pallant (1989) would indicate the range of this species extends back to the Early Oligocene.

Figures

FIGURE 1. Diagram illustrating the general skeletal morphology of Lophophaenidae, and terminology used in this manuscript. Dashed lines indicate spines that are not visible from the angle shown, as they extend into the skeleton. An example specimen of Lophophaena casperi n. sp. is included for comparison to the diagrams.

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