Arachnocorys umbellifera Petrushevskaya 1971
Description
Arachnocorys umbellifera (Haeckel, 1862) Petrushevskaya, 1971
Plate 3, Figs 6A – 8B.
Arachnocorys umbellifera n. sp., Haeckel, 1862, pl. 6, fig. 12.
Acanthocorys (Acanthocoronium) umbellifera Haeckel, Haeckel, 1887, p. 1263 [not figured].
? Acanthocorys umbellifera Haeckel, Cleve, 1899, p. 25, not figured.
Arachnocorys umbellifera Haeckel, Jørgensen, 1905, pl. 18, fig. 107.
Arachnocorys umbellifera Haeckel, Petrushevskaya, 1962, pl. 5, figs. 2–4 (non fig. 1).
Arachnocorys umbellifera Haeckel, Benson, 1966, pl. 24, fig. 20 (non fig. 21).
Arachnocorys umbellifera Haeckel, emend. Petrushevskaya, 1971, pl.65, figs. 5–6; pl.66, figs. 1–4.
Arachnocorys umbellifera Haeckel, Tan and Tchang, 1976, text-fig. 58.
non Arachnocorys umbellifera Haeckel, Benson, 1983, pl. 8, fig. 6.
? Acanthocorys umbellifera Haeckel, Ishitani and Takahashi, 2007, pl. 3, figs. a–b (non fig. c).
Arachnocorys umbellifera Haeckel, Onodera et al., 2011, pl. 8, figs. 8–9 (non fig. 7).
? Acanthocorys umbellifera Haeckel, sensu Cleve 1899, Bjørklund et al., 2014, pl. 10, figs.11a–b.
unknown plagonid group C sp 12 cf, Trubovitz et al., 2020, supplementary data 7.
Remarks. This species has been interpreted differently by authors in the literature. It is probable that several distinct species have been illustrated under the name Arachnocorys umbellifera Haeckel. In an attempt to clarify the species concept, our synonymy most closely follows the concepts and illustrations of Petrushevskaya (1971) and Tan and Tchang (1976). The specimen from Cleve’s collection illustrated by Bjørklund et al. (2014) appears to have a relatively smaller cephalis that is sunken into the thorax, compared to illustrations by other authors. Its apical spine also appears to be stronger than the other illustrated specimens. It is difficult to say with certainty that this specimen belongs to a different species based on only two images, so both Cleve (1899) and Bjørklund et al. (2014) are questioned but not excluded in our synonymy.
Range. Late Miocene—Recent, with greatest abundances from the Late Miocene to Early Pliocene in the EEP (Table 1).
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Plagiacanthidae
- Genus
- Arachnocorys
- Kingdom
- Chromista
- Order
- Nassellaria
- Phylum
- Radiozoa
- Scientific name authorship
- Petrushevskaya
- Species
- umbellifera
- Taxon rank
- species
- Taxonomic concept label
- Arachnocorys umbellifera Petrushevskaya, 1971 sec. Trubovitz, Renaudie, Lazarus & Noble, 2022
References
- Haeckel, E. (1862) Die Radiolarien (Rhizopoda Radiaria). Eine Monographie. Reimer, Berlin, 572 pp. [in German] https: // doi. org / 10.5962 / bhl. title. 10155
- Petrushevskaya, M. G. (1971) Nassellarian radiolarians in the plankton of the world oceans. Investigations of the Fauna of the Seas, 9 (17), 1 - 294. [in Russian]
- Haeckel, E. (1887) Report on the Radiolaria collected by H. M. S. Challenger during the years 1873 - 1876. Report on the Scientific Results of the Voyage of the H. M. S. Challenger, Zoology, 18, i - clxxxviii + 1 - 1803. https: // doi. org / 10.5962 / bhl. title. 31840
- Cleve, P. T. (1899) Plankton collected by the Swedish expedition to Spitzbergen in 1898. Kongliga svenska Vetenskaps Akademiens Handlingar, 32 (3), 1 - 51.
- 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.
- Petrushevskaya, M. G. (1962) The importance of skeleton growth in Radiolaria for their systematics. Zoological Journal of the Zoological Institute, USSR Academy of Sciences, Leningrad, 41 (3), 331 - 341. [in Russian]
- Benson, R. N. (1966) Recent Radiolaria from the Gulf of California. PhD dissertation, University of Minnesota, Minneapolis, 577 pp.
- Tan, Z. & Tchang, T. R. (1976) Studies on the Radiolaria of the East China Sea. II. Spumellaria, Nassellaria, Phaeodaria, Sticholonchea. Studia Marina Sinica, 11, 217 - 310. [in Chinese]
- 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
- Ishitani, Y. & Takahashi, K. (2007) The vertical distribution of Radiolaria in the waters surrounding Japan. Marine Micropaleontology, 65 (3 - 4), 113 - 136. https: // doi. org / 10.1016 / j. marmicro. 2007.06.002
- Onodera, J., Okazaki, Y., Takahashi, K., Okamura, K. & Murayama, M. (2011) Distribution of polycystine Radiolaria, Phaeodaria and Acantharia in the Kuroshio Current off Shikoku Island and Tosa Bay during Cruise KT 07 - 19 in August 2007. Memoirs of the Faculty of Science, Kyushu University, Series D, Earth and Planetary Sciences, 32 (3), 39 - 61.
- Bjorklund, K. R., Itaki, T. & Dolven, J. K. (2014) Per Theodor Cleve: a short resume and his radiolarian results from the Swedish Expedition to Spitsbergen in 1898. Journal of Micropalaeontology, 33 (1), 59 - 93. https: // doi. org / 10.1144 / jmpaleo 2012 - 024
- 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