Lophophaena laticeps ( Jørgensen, 1905 ) Kurihara and Matsuoka, 2010
publication ID |
https://doi.org/ 10.11646/zootaxa.5160.1.1 |
publication LSID |
lsid:zoobank.org:pub:A9179C79-EE43-44E4-8723-919505500049 |
DOI |
https://doi.org/10.5281/zenodo.10551543 |
persistent identifier |
https://treatment.plazi.org/id/03C96F50-FFAF-FFC4-75DF-E688FDB0C5BC |
treatment provided by |
Plazi (2022-07-04 09:53:10, last updated 2024-01-22 15:26:06) |
scientific name |
Lophophaena laticeps ( Jørgensen, 1905 ) Kurihara and Matsuoka, 2010 |
status |
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Lophophaena laticeps ( Jørgensen, 1905) Kurihara and Matsuoka, 2010
Plate 23, Figs. 6A View FIGURE 6 – 7B View FIGURE 7 .
Lithomelissa laticeps n. sp., Jørgensen, 1905, pl. 16, fig. 84.
Lithomelissa laticeps Jørgensen, Schröder, 1914 , text-figs. 58–59.
Lithomelissa laticeps Jørgensen, Benson, 1966 , pl. 24, figs. 14–15.
non Botryopera laticeps Jørgensen, Petrushevskaya, 1975 , pl. 20, fig. 3.
Lithomelissa laticeps Jørgensen, Benson, 1983 , pl. 9, fig. 3.
Lophophaena laticeps Jørgensen, Kurihara and Matsuoka, 2010 , fig. 3.7.
Lithomelissa laticeps Jørgensen, Trubovitz et al., 2020 , supplementary data 7.
Remarks. This species was originally described under the genus Lithomelissa , but it does not have an apical spine passing freely through the cephalis and thus does not satisfy modern usage of this genus definition. Kurihara and Matsuoka (2010) listed this species in Lophophaena but did not discuss the genus transfer. We agree that this species best fits the definition of Lophophaena because the cephalis is relatively high with maximum width near the top, and the apical spine runs along the shell wall.
This species could be closely related to some morphotypes of Stichopilium bicorne , the notoriously cryptic group that is characterized by two strong spines running along opposite sides of the cephalis and has a wide variety of thorax shapes and sizes. In this paper, Plate 23, Figs. 8A–8B View FIGURE 8 illustrate one such morphotype that is often identified (sometimes tentatively) as Stichopilium bicorne in the literature (e.g., Lazarus 1992, pl. 9, fig. 14). Comparison of this morphotype with Lophophaena laticeps (Pl. 23, Figs. 6A View FIGURE 6 – 7B View FIGURE 7 ) yields some striking similarities, such as the structure of the cephalis and pronounced lobe on the dorsal side of the neck area, suggesting a possible link between Stichopilium bicorne and the lophophaenids. However, even the most lophophaenid-like morphotype of Stichopilium bicorne figured in pl. 23, figs. 8A–B, differs in that it has a more reduced cephalis with relatively longer cephalic horns, lacks buttressing of the cephalic horns, and has a proportionally larger lobe in the neck region. Thus, we are not suggesting these specimens are conspecific, but rather that they could have an evolutionary relationship that justifies further study to potentially resolve this enigmatic group.
Range. Early Pliocene, EEP ( Table 1 View TABLE 1 ).
Benson, R. N. (1966) Recent Radiolaria from the Gulf of California. PhD dissertation, University of Minnesota, Minneapolis, 577 pp.
Benson, R. N. (1983) Quaternary radiolarians from the mouth of the Gulf of California, Deep Sea Drilling Project Leg 65. In: Lewis, B. T. R., Robinson, P. T., Benson, R. N., Blackinton, G., Cambon, P., Day, R., Duennebier, F., Flower, M. F. J., Gutierrez-Estrada, M., Hattner, J. G., Kudo, A. M., Morrison, M. A., Rangin, C., Salisbury, M. H., Schmincke, H. U., Stephen, R. & Zolotarev, B. P., Initial Reports of the Deep Sea Drilling Project. Vol. 65. U. S. Government Printing Office, Washington, D. C., pp. 491 - 523. https: // doi. org / 10.2973 / dsdp. proc. 65.123.1983
Jorgensen, E. (1905) The protist plankton and the diatoms in bottom samples. VII. Radiolaria. In: Nordgaard, O. (Ed.), Hydrographical and Biological investigations in Norwegian Fiords. Bergen Museum Skrifter, Bergen, pp. 114 - 141.
Kurihara, T. & Matsuoka, A. (2010) Living radiolarian fauna of late autumn (November 13, 2008) in surface-subsurface waters of the Japan Sea off Tassha, Sado Island, central Japan. Scientific Report, Niigata University, Geology, 25, 83 - 92.
Lazarus, D. (1992) Antarctic Neogene radiolarians from the Kerguelen Plateau, Legs 119 and 120. In: Wise, S. W. Jr., Schlich, R., Julson, A. A. P., Aubry, M. P., Berggren, W. A., Bitschene, P. R., Blackburn, N. A., Breza, J., Coffin, M. F., Harwood, D. M., Heider, F., Holmes, M. A., Howard, W. R., Inokuchi, H., Kelts, K., Lazarus, D. B., Mackensen, A., Maruyama, T., Munschy, M., Pratson, E., Quilty, P. G., Rack, F., Salters, V. J. M., Sevigny, J. H., Storey, M., Takemura, A., Watkins, D. K., Whitechurch, H. & Zachos, J., Proceedings of the Ocean Drilling Program, Scientific Results. Vol. 120. U. S. Government Printing Office, Washington, D. C., pp. 785 - 809. https: // doi. org / 10.2973 / odp. proc. sr. 120.192.1992
Petrushevskaya, M. G. (1975) Cenozoic radiolarians of the Antarctic, Leg 29, DSDP. In: Kennet, J. P., Houtz, R. E., Andrews, P. B., Edwards, A. R., Gostin, V. A., Hajos, M., Hampton, M. A., Jenkins, D. G., Margolis, S. V., Ovenshine, A. T. & Perch- Nielsen, K., Initial Reports of the Deep Sea Drilling Project. Vol. 29. U. S. Government Printing Office, Washington, D. C., pp. 541 - 675. https: // doi. org / 10.2973 / dsdp. proc. 29.114.1975
Schroder, O. (1914) Die nordischen Nassellarian. In: Brandt, K. & Apstein, C. (Eds.), Nordisches Plankton. Vol. 17. Verlag von Lipsius und Tischer, Kiel und Leipzig, pp. 67 - 146. [in German]
Trubovitz, S., Lazarus, D., Renaudie, J. & Noble, P. J. (2020) Marine plankton show threshold extinction response to Neogene climate change. Nature Communications, 11 (5069), 1 - 10. https: // doi. org / 10.1038 / s 41467 - 020 - 18879 - 7
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Lophophaena laticeps ( Jørgensen, 1905 ) Kurihara and Matsuoka, 2010
Trubovitz, Sarah, Renaudie, Johan, Lazarus, David & Noble, Paula 2022 |
Lithomelissa laticeps Jørgensen, Trubovitz et al., 2020
Jorgensen, Trubovitz 2020 |
Lophophaena laticeps Jørgensen, Kurihara and Matsuoka, 2010
Jorgensen, Kurihara and Matsuoka 2010 |
Lithomelissa laticeps Jørgensen, Benson, 1983
Jorgensen, Benson 1983 |
Botryopera laticeps Jørgensen, Petrushevskaya, 1975
Jorgensen, Petrushevskaya 1975 |
Lithomelissa laticeps Jørgensen, Benson, 1966
Jorgensen, Benson 1966 |
Lithomelissa laticeps Jørgensen, Schröder, 1914
Jorgensen, Schroder 1914 |
Lithomelissa laticeps
Jorgensen 1905 |