Lophophaena sp. J

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 : 71

Lophophaena sp. J

Plate 37, Figs. 4A – 6B .

unknown plagonid group C sp 61, Trubovitz et al., 2020, supplementary data 7.

Remarks. This species has a long cephalis, that is widest near the top and narrowest at the bottom. Pores decrease in size dramatically from the bottom to top of the cephalis. On the thorax, the dorsal and lateral spines form short and strong appendages that are approximately horizontal.

Material examined. 13 specimens observed from samples 321-1337A-18H-6, 77–80cm (Late Miocene), 321- 1337A-16H- 6, 121–124cm (Late Miocene), 321-1337A-14H-7, 39–42cm (Late Miocene), 321-1337A-7H- 6, 104– 107cm (Early Pliocene), and 321-1337A-5H-5, 11–14cm (Late Pliocene).

Range. Late Miocene—Late Pliocene, EEP (Table 1).

Figures

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

FIGURE 6. Internal skeletal structure of Arachnocorallium calvata (Haeckel, 1887) Petrushevskaya, 1971.