Lophophaena buetschlii ( 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 : 54

Lophophaena buetschlii ( Haeckel 1887) Petrushevskaya, 1971

Plate 24, Figs. 1A – 2B .

Lithomelissa buetschlii n. sp., Haeckel, 1887, p. 1207, pl. 56, fig. 1.

Acanthocorys variabilis n. sp., Popofsky, 1913, p. 360 –364, text-fig. 80 (non text-figs. 71–79, 81).

Lophophaena buetschlii Haeckel, Petrushevskaya, 1971, p. 109 , 111, pl. 58, figs. 1–10.

Lithomelissa buetschlii Haeckel, Renz, 1976 , pl. 6, fig. 19.

Lithomelissa buetschlii Haeckel, Tan and Tchang, 1976 , text-fig. 51a–51b.

Lophophaena buetschlii, Boltovskoy and Riedel, 1987 , pl. 4, fig. 9.

Lophophaena buetschlii (Haeckel) Petrushevskaya, Van de Paverd, 1995 , pl. 65, fig. 10 (non-figs. 3–4).

Lophophaena buetschlii (Haeckel) Petrushevskaya, Trubovitz et al., 2020 , supplementary data 7.

Remarks. Haeckel (1887) originally described this species under the generic name Lithomelissa , subgenus Micromelissa . Petrushevskaya (1971) reassigned this species to Lophophaena and provided many detailed illustrations. Name usage has been mixed between these two genus assignments ever since, but here we follow Petrushevskaya (1971) ’s assignment to Lophophaena , because the apical spine is not free within the cephalis as it is in Lithomelissa .

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

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 2. Relative abundance of specimens and taxa belonging to Plagiacanthoidea and Lophophaenidae per sample, from IODP Site U1337 in the EEP over the last ~10 Ma. The relative percentages of total taxa are represented by the blue lines and the red lines represent the percentages of total specimens (triangles = Plagiacanthoidea; circles = Lophophaenidae). The Plagiacanthoidea was among the most abundant and speciose of radiolarian groups encountered in Trubovitz et al. (2020), with at least 10% of the specimens and 20% of the taxonomic richness in every sample. Within the Plagiacanthoidea, lophophaenids consistently made up the majority of specimens (~67%) and taxa (~61%). Data are from Trubovitz et al. (2020).