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Family ASPICULIDAE Won, Iams & Reed, 2005 Aspiculidae Won, Iams & Reed, 2005: 440, 441. Aspiculumidae – Won, Iams & Reed, 2005: 438 (nom. correct. Maletz [2011a: 130]). Neoaspiculumidae Won & Iams, 2011: 164., 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 485, DOI: 10.5252/g2017n3a4, http://zenodo.org/record/5206585, {"references":["WON M. Z., IAMS W. J & REED K. 2005. - Earliest Ordovician (Early to MiddleTremadocian) radiolarian faunas of the Cow Head Group, Western Newfoundland. Journal of Paleontology 79 (3): 433 - 459. https: // doi. org / 10.1666 / 0022 - 3360 (2005) 079 2.0. CO; 2","MALETZ J. 2011 a. - Radiolarian skeletal structures and biostratigraphy in the early Palaeozoic (Cambrian-Ordovician). Palaeoworld 20: 116 - 133. https: // doi. org / 10.1016 / j. palwor. 2010.12.007","WON M. Z. & IAMS W. J. 2011. - Earliest Arenig Radiolarians from the Cow Head Group, Western Newfoundland. Journal of Paleontology 85 (1): 156 - 177. https: // doi. org / 10.1666 / 10 - 102.1"]}

Aspiculum Won, Iams & Reed, 2005 Aspiculum Won, Iams & Reed, 2005: 441. TYPE SPECIES. — Aspiculum eccentricum Won, Iams & Reed, 2005 (Won et al. 2005: 441, fig. 5.5-5.10a, 5.10b). AGE AND LOCATION OF TYPE MATERIAL. — Lower-middle Tremadocian (Lower Ordovician), Cow Head Group, western Newfoundland, Canada. TAXON CODE. — 284. STATUS. — Valid. DIAGNOSIS. — A spherical to subspherical or oval skeleton with or without pylome and no spicule system. Where the shell wall is spherical, the central (basal layer or innermost layer) part of the shell wall eccentrically developed and the thickness of the shell wall, therefore, varied within a single specimen. A basal layer developed or not, and its meshwork two- or three-dimensionally interwoven. (Won et al. 2005: 441)., 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 485-486, DOI: 10.5252/g2017n3a4, http://zenodo.org/record/5206585, {"references":["WON M. Z., IAMS W. J & REED K. 2005. - Earliest Ordovician (Early to MiddleTremadocian) radiolarian faunas of the Cow Head Group, Western Newfoundland. Journal of Paleontology 79 (3): 433 - 459. https: // doi. org / 10.1666 / 0022 - 3360 (2005) 079 2.0. CO; 2"]}

Aspiculum Won, Iams & Reed, 2005 Aspiculum Won, Iams & Reed, 2005: 441. TYPE SPECIES. — Aspiculum eccentricum Won, Iams & Reed, 2005 (Won et al. 2005: 441, fig. 5.5-5.10a, 5.10b). AGE AND LOCATION OF TYPE MATERIAL. — Lower-middle Tremadocian (Lower Ordovician), Cow Head Group, western Newfoundland, Canada. TAXON CODE. — 284. STATUS. — Valid. DIAGNOSIS. — A spherical to subspherical or oval skeleton with or without pylome and no spicule system. Where the shell wall is spherical, the central (basal layer or innermost layer) part of the shell wall eccentrically developed and the thickness of the shell wall, therefore, varied within a single specimen. A basal layer developed or not, and its meshwork two- or three-dimensionally interwoven. (Won et al. 2005: 441).

Neoaspiculum Won & Iams, 2011 Neoaspiculum Won & Iams, 2011: 165. TYPE SPECIES. — Neoaspiculum headense Won & Iams, 2011 (Won & Iams 2011: 165, fig. 6.1-6.10, 6.12-6.17). AGE AND LOCATION OF TYPE MATERIAL. — Floian (Lower Ordovician), Cow Head Group, western Newfoundland, Canada. TAXON CODE. — 286. STATUS. — Valid. DIAGNOSIS. — “Spherical pylomate or non-pylomate skeleton consisting of multiple layers, each of which is indistinctly or distinctly separated from the neighboring layer.Meshwork commonly composed of bars, bandages, rarely displaying wide interpore areas, all of these types rarely co-occurring within a specimen. Shape and degree of development of a proloculus variable.” (Won & Iams 2011: 165)., 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 486, DOI: 10.5252/g2017n3a4, http://zenodo.org/record/5206585, {"references":["WON M. Z. & IAMS W. J. 2011. - Earliest Arenig Radiolarians from the Cow Head Group, Western Newfoundland. Journal of Paleontology 85 (1): 156 - 177. https: // doi. org / 10.1666 / 10 - 102.1"]}

Neoaspiculum Won & Iams, 2011 Neoaspiculum Won & Iams, 2011: 165. TYPE SPECIES. — Neoaspiculum headense Won & Iams, 2011 (Won & Iams 2011: 165, fig. 6.1-6.10, 6.12-6.17). AGE AND LOCATION OF TYPE MATERIAL. — Floian (Lower Ordovician), Cow Head Group, western Newfoundland, Canada. TAXON CODE. — 286. STATUS. — Valid. DIAGNOSIS. — “Spherical pylomate or non-pylomate skeleton consisting of multiple layers, each of which is indistinctly or distinctly separated from the neighboring layer.Meshwork commonly composed of bars, bandages, rarely displaying wide interpore areas, all of these types rarely co-occurring within a specimen. Shape and degree of development of a proloculus variable.” (Won & Iams 2011: 165).

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.