Toritenum Dumitrica & Zügel 2003, n. gen.

• Main Authors: Dumitrica, Paulian, Zügel, Peter
• Format: Text
• Language: unknown
• Published: Zenodo 2003
• Subjects: Biodiversity; Taxonomy; Chromista; Radiozoa; Polycystina; Nassellaria; Tertoniidae; Toritenum; Antarctic; The Antarctic; Antarctic Peninsula; Wever; Antarc*
• Online Access: https://dx.doi.org/10.5281/zenodo.5463578; https://zenodo.org/record/5463578

Genus Toritenum n. gen. TYPE SPECIES. — Toritenum hirsutum n. gen., n. sp. ETYMOLOGY. — The name is an anagram of the genus Tertonium n. gen. Neuter gender. KNOWN RANGE. — Lower Pliensbachian to lower Tithonian. DIAGNOSIS. — Test conical with or without a well developed apical horn, with the spines of the initial spicule not protruding. Thorax with a variable number of circumferential ridges separated by depressionary intervals bearing transverse rows of pores. Distal part of thorax widely open. REMARKS This new genus resembles Tertonium n. gen. from which it only differs by not having the spines D, V, and the two L of the initial spicule extended outside. The genus is rather well represented in the lower Tithonian assemblage of sample Mue 22. A species assignable to this genus was illustrated by Takemura (1986), Hattori (1989), and Yao (1997) as Parvicingula (?) obesa Takemura, 1986 from probably Bajocian manganese concretions ( Unuma echinatus Zone) of Japan. Another species was illustrated by Kiessling (1999: pl. 15, figs 1, 2) as Eucyrtidium (?) sp. from the lower Tithonian of Antarctic Peninsula, and the oldest but not yet described was found by us in the lower Pliensbachian fauna of Turkey partly studied by De Wever (1982). : Published as part of Dumitrica, Paulian & Zügel, Peter, 2003, Lower Tithonian mono- and dicyrtid Nassellaria (Radiolaria) from the Solnhofen area (southern Germany), pp. 5-72 in Geodiversitas 25 (1) on page 50, DOI: 10.5281/zenodo.5372196 : {"references": ["TAKEMURA A. 1986. - Classification of Jurassic nassellarians (Radiolaria). Palaeontographica 195 A: 29 - 74.", "HATTORI I. 1989. - Jurassic radiolarians from manganese nodules at three sites in the western Nanjo Massif, Fukui Prefecture, Central Japan (data).", "YAO A. 1997. - Faunal change of Early-Middle Jurassic radiolarians, in YAO A. (ed.), Proceedings of the Fifth Radiolarian Symposium. News of Osaka Micropaleontologists, special volume 10: 155 - 182.", "KIESSLING W. 1999. - Late Jurassic radiolarians from the Antarctic Peninsula. Micropaleontology 45, suppl. 1: 1 - 96.", "DE WEVER P. 1982. - Nassellaria (Radiolaires polycystines) du Lias de Turquie. Revue de Micropaleontologie 24: 189 - 232."]}