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Deflandrellium Cheng, 1986 Deflandrellium Cheng, 1986: 134. TYPE SPECIES. — Deflandrellium georgesi Cheng, 1986 (Cheng 1986: 134, pl. 7, fig. 7, 13). AGE AND LOCATION OF TYPE MATERIAL. — Upper Famennian (Upper Devonian), Woodford Formation, Ouachita Mountains, Oklahoma, USA. TAXON CODE. — 224. STATUS. — Valid. DIAGNOSIS. — “Test as with family but possessing five asymmetrically arranged spines on shell surface, and one subapical horn and four feet. Cephalis spherical, perforate having sparsely to densely distributed pores with pore cones. Pylome large, circular with four feet surrounding of which one foot is always slightly higher in position. The narrow pylome is skirt-like, imperforate lacking a marginal fringe.” (Cheng 1986: 134)., Published as part of Noble, Paula, Aitchison, Jonathan C., Danelian, Taniel, Dumitrica, Paulian, Maletz, Jörg, Suzuki, Noritoshi, Cuvelier, Jessie, Caridroit, Martial & O'Dogherty, Luis, 2017, Taxonomy of Paleozoic radiolarian genera, pp. 419-502 in Geodiversitas 39 (3) on page 473, DOI: 10.5252/g2017n3a4, http://zenodo.org/record/5206585, {"references":["CHENG Y. - N. 1986. - Taxonomic Studies on Upper Paleozoic Radiolaria. National Museum of Natural Science, Taiwan, Special Publication, vol. 1, 310 p."]}

Cerarchocyrtium Deflandre, 1973 Cerarchocyrtium Deflandre, 1973d: 151. TYPE SPECIES. — Cerarchocyrtium ambiguum Deflandre, 1973d (Deflandre 1973d: 151, pl. 1, fig. 9, pl. 4, fig. 1). AGE AND LOCATION OF TYPE MATERIAL. — Visean (Lower Carboniferous), Cabrières, Hérault, Montagne Noire, France. TAXON CODE. — 220. STATUS. — Valid. DIAGNOSIS. — “Céphalis sphérique pourvu de deux cornes et d’un podome à 3 pieds avec un pseudo-thorax plus ou moins développé. Système trabéculaire à 5 trabécules.” (Deflandre 1973d: 151). DIAGNOSIS (English translation by J. P. Caulet – RadWorld database). — “Spherical cephalis bearing two horns and a podome with three feet and a more or less well-developed pseudo-thorax. Internal spicule with five spines.”, Published as part of Noble, Paula, Aitchison, Jonathan C., Danelian, Taniel, Dumitrica, Paulian, Maletz, Jörg, Suzuki, Noritoshi, Cuvelier, Jessie, Caridroit, Martial & O'Dogherty, Luis, 2017, Taxonomy of Paleozoic radiolarian genera, pp. 419-502 in Geodiversitas 39 (3) on pages 472-473, DOI: 10.5252/g2017n3a4, http://zenodo.org/record/5206585, {"references":["DEFLANDRE G. 1973 d. - Sur quelques nouvelles especes d' Archocyrtium, radiolaires Pylentonemidae du Viseen de Cabrieres. Comptes Rendus hebdomadaires des Seances de l'Academie des Sciences (Paris), Serie D: Sciences naturelles 277: 149 - 152. http: // gallica. bnf. fr / ark: / 12148 / bpt 6 k 5474901 n"]}

Cyrtisphaeractenium Deflandre, 1972 Cyrtisphaeractenium Deflandre, 1972b: 14; 1960: 216 (nomen nudum). TYPE SPECIES. — Cyrtisphaeractenium mendax Deflandre, 1960 (Deflandre 1960: 216, pl. 1, fig. 19, nomen nudum); Deflandre 1972a: 3535, pl. 1, fig. 5-11, pl. 2, fig. 4-5, pl. 3, fig. 1-6; 1972b: 15. AGE AND LOCATION OF TYPE MATERIAL. — Visean (Lower Carboniferous), Cabrières, Hérault, Montagne Noire, France. TAXON CODE. — 222. STATUS. — Valid. DIAGNOSIS. — “Céphalis sphérique perforé avec des pores arrondis, largement espacés et peu nombreux, muni de quatre cornes costulées dont l’une est toujours courte et conique et deux autres grandes et non apicales. Ouverture large à bord portant une collerette épaissie, de laquelle partent de longues pointes rapprochées en dents de peigne, avec un podome formé de trois longues cornes tricostulées, droites ou un peu courbées, entre lesquelles subsistent des vestiges souvent très réduits de l’appareil pectiné. Système trabéculaire interne connu seulement par quelques vestiges en tigelles grêles, issues de la base des cornes et franchement dirigées vers le centre.» (Deflandre 1972b: 14). DIAGNOSIS (English translation by Taniel Danelian). — Cephalis spherical, perforated by rounded pores that are not numerous and well-spaced, bearing four costate horns one of which is always short and conical, the two others are large and not apical. The opening is large and bears a thick collar, from which long spikes extend, they are brought together in the form of brush, with a podome that is formed by three long tri-bladed horns, which are straight or slightly curved, through which exist the remains of a pectinate (parallel-ridged) apparatus. The internal spicular (trabecular) system is known only from some remains with slender stalks extending from the base of the horns and truly directed towards the center. ABRIDGED DESCRIPTION (translated from Deflandre [1972b] by J. P. Caulet). — See also Holdsworth (1973)., Published as part of Noble, Paula, Aitchison, Jonathan C., Danelian, Taniel, Dumitrica, Paulian, Maletz, Jörg, Suzuki, Noritoshi, Cuvelier, Jessie, Caridroit, Martial & O'Dogherty, Luis, 2017, Taxonomy of Paleozoic radiolarian genera, pp. 419-502 in Geodiversitas 39 (3) on page 473, DOI: 10.5252/g2017n3a4, http://zenodo.org/record/5206585, {"references":["DEFLANDRE G. 1972 b. - Remarques complementaires sur la morphologie et la nomenclature de quelques genres de Radiolaires du Paleozoique. Comptes Rendus hebdomadaires des Seances de l'Academie des Sciences (Paris), Serie D: Sciences naturelles 275 (1): 13 - 16. http: // gallica. bnf. fr / ark: / 12148 / bpt 6 k 57786873","DEFLANDRE G. 1960. - A propos du developpement des recherches sur les Radiolaires fossiles. Revue de Micropaleontologie 2 (4): 212 - 218.","DEFLANDRE G. 1972 a. - Le systeme trabeculaire interne chez les Pylentonemides et les Popofskyellides, Radiolaires du Paleozoique. Phylogenese des Nassellaires. Comptes Rendus hebdomadaires des Seances de l'Academie des Sciences (Paris), Serie D: Sciences naturelles 274 (26): 3535 - 3540. http: // gallica. bnf. fr / ark: / 12148 / bpt 6 k 5682741 m","HOLDSWORTH B. K. 1973. - The Radiolaria of the Baltalimani Formation, lower Carboniferous, Istanbul, Paleozoic of Istanbul. Ege Universitesi Fen Fakultesi Kitaplar Serisi (Jeoloji) 40: 117 - 134."]}

Mostlerium Cheng, 1986 Mostlerium Cheng, 1986: 136. TYPE SPECIES. — Mostlerium unicum Cheng, 1986 (Cheng 1986: 136, pl. 4, fig. 7, 8, 20, 23). AGE AND LOCATION OF TYPE MATERIAL. — Lower Carboniferous, Oklahoma and Arkansas, USA. TAXON CODE. — 226. STATUS. —Junior synonym of Pararchocyrtium Deflandre,1972 (herein). DIAGNOSIS. — “Test as with family [Archocyrtidae] but possessing seven spines on the shell surface; three spines located on the upper hemisphere, of which one slightly lower in position and much shorter; four other spines located on the lower hemisphere surrounding the pylome margin. Cephalis subspherical, perforate having large, circular pylome. Pylome margin having expanded skirt; narrow and imperforate.” (Cheng 1986: 136). REMARKS Noble et al. (2008: 47) note the instability of the position of spines (either as feet or lateral spines) in Pararchocyrtium, and question the validity of using the number of feet as a criterion for genus level distinction in several of the archocyrtid taxa. We synonymize herein., Published as part of Noble, Paula, Aitchison, Jonathan C., Danelian, Taniel, Dumitrica, Paulian, Maletz, Jörg, Suzuki, Noritoshi, Cuvelier, Jessie, Caridroit, Martial & O'Dogherty, Luis, 2017, Taxonomy of Paleozoic radiolarian genera, pp. 419-502 in Geodiversitas 39 (3) on page 474, DOI: 10.5252/g2017n3a4, http://zenodo.org/record/5206585, {"references":["CHENG Y. - N. 1986. - Taxonomic Studies on Upper Paleozoic Radiolaria. National Museum of Natural Science, Taiwan, Special Publication, vol. 1, 310 p.","NOBLE P. J., TEKIN U. K., GEDIK I. & PEHLIVAN S. 2008. - Middle to Upper Tournaisian Radiolaria of the Baltalimani Formation, Istanbul, Turkey. Journal of Paleontology 82 (1): 37 - 56. https: // doi. org / 10.1666 / 06 - 046.1"]}

Robotium Cheng, 1986 Robotium Cheng, 1986: 137. TYPE SPECIES. — Robotium validum Cheng, 1986 (Cheng 1986: 139, pl. 3, fig. 3, 10, 11, 17, 21). AGE AND LOCATION OF TYPE MATERIAL. — Lower Carboniferous, Oklahoma and Arkansas, USA. TAXON CODE. — 228. STATUS. — Junior synonym of Pararchocyrtium Deflandre, 1972 (herein). DIAGNOSIS. — “Test as with family [Archocyrtidae] but possessing six asymmetrically disposed spines on the shell surface with two subapical horns and four feet.” (Cheng 1986: 137). REMARKS See remarks under Mostlerium. Family POPOFSKYELLIDAE Kozur & Mostler, 1981 emend Cheng (1986), Published as part of Noble, Paula, Aitchison, Jonathan C., Danelian, Taniel, Dumitrica, Paulian, Maletz, Jörg, Suzuki, Noritoshi, Cuvelier, Jessie, Caridroit, Martial & O'Dogherty, Luis, 2017, Taxonomy of Paleozoic radiolarian genera, pp. 419-502 in Geodiversitas 39 (3) on page 474, DOI: 10.5252/g2017n3a4, http://zenodo.org/record/5206585, {"references":["CHENG Y. - N. 1986. - Taxonomic Studies on Upper Paleozoic Radiolaria. National Museum of Natural Science, Taiwan, Special Publication, vol. 1, 310 p.","KOZUR H. W. & MOSTLER H. 1981. - Beitrage zur Erforschung der mesozoischen Radiolarien. Teil IV: Thalassosphaeracea HAECKEL 1862, Hexastylacea HAECKEL 1862 emend. PETRUSEVSKAJA 1979, Sponguracea HAECKEL 1862 emend. und weitere triassische Lithocycliacea, Trematodiscacea, Actinommacea und Nassellaria. Geologisch Palaontologische Mitteilungen Innsbruck, Sonderband 1: 1 - 208."]}

International audience; This chapter is to be used as companion text with the companion chapter, an illustrated catalogue of Paleozoic radiolarian genera found in this volume, and serves the purpose of giving the reader explanation for any taxonomic operations undertaken during the course of constructing the catalogue. These operations refer to the status of the genera as valid, junior synonym, homonym, nomen nudum, nomen dubium, or not Radiolaria. We also include diagnoses and/or descriptions in the original language published, English translations where needed, and locality and age information for the type material.; Cet article est un complément indispensable de la partie catalogue illustré des genres de radiolaires paléozoïques (article précédent) ; il a pour ambition de donner au lecteur toutes les informations taxonomiques nécessaires qui expliquent les changements introduits au cours de la construction du catalogue. Les statuts des genres, argumentés, sont fournis : valide, synonyme junior, homonyme, nomen nudum, nomen dubium, ou non radiolaire. De plus, il propose des traductions en Anglais des diagnoses ou définitions des genres publiées dans diverses langues et des informations sur la localité et l’âge du matériel type.