Lithomelissa hoplites , Nishimura 1990
Description
Lithomelissa (?) hoplites Foreman, 1968
Lithomelissa (?) hoplites n. sp., Foreman, 1968, pl. 3, figs. 2A–C.
? Tripodiscium sp. aff. Lithomelissa hoplites, Petrushevskaya and Kozlova, 1972, pl. 7, fig. 2.
Remarks. It is not clear whether or not this species belongs in Lithomelissa. Although it has an apical spine passing freely through the cephalis, the elongated and tapering/undulating nature of the thorax, relatively small and poreless cephalis, nature of the pores and ridges on the thorax, and very strong appendages high up on the thorax, are together very unusual characteristics for this genus, and unlike any of the other lophophaenids we observed in this study. If it really does belong in Lithomelissa, to our knowledge this species would be the only member of this genus that dating back to the Cretaceous. Furthermore, if correctly assigned, this species would make Lithomelissa the oldest lophophaenid genus of those included in this manuscript.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Plagiacanthidae
- Genus
- Lithomelissa
- Kingdom
- Chromista
- Order
- Nassellaria
- Phylum
- Radiozoa
- Scientific name authorship
- , Nishimura
- Taxon rank
- genus
- Taxonomic concept label
- Lithomelissa , 1990 sec. Trubovitz, Renaudie, Lazarus & Noble, 2022
References
- Foreman, H. P. (1968) Upper Maestrichtian Radiolaria of California. Palaeontological Association Special Papers, 3, 1 - 82.
- Petrushevskaya, M. G. & Kozlova, G. E. (1972) Radiolaria: Leg 14, Deep Sea Drilling Project. In: Hayes, D. E., Pimm, A. C., Beckmann, J. P., Benson, W. E., Berger, W. H., Roth, P. H., Supko, P. R. & von Rad, U., Initial Reports of the Deep Sea Drilling Project. Vol. 14. U. S. Government Printing Office, Washington, D. C., pp. 495 - 648. https: // doi. org / 10.2973 / dsdp. proc. 14.116.1972