Goodbodium Furutani, 1990

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, Geodiversitas 39 (3), pp. 419-502 : 453

Goodbodium Furutani, 1990

Goodbodium Furutani, 1990: 43 .

TYPE SPECIES. — Palaeoscenidium flammatum Goodbody, 1986 ( Goodbody 1986: 152, pl. 1, fig. 1-4).

AGE AND LOCATION OF TYPE MATERIAL. — Wenlockian, Silurian, Cape Phillips Formation, Arctic Canada.

TAXON CODE. — 144.

STATUS. — Junior synonym of Palaeoscenidium Deflandre, 1953 .

DIAGNOSIS. — “Basic spicule is composed of a short median bar and 4 short apical spines and 4 long basal spines. One of the apical spines often well developed in some species. Thin lamellae more or less develop between neighboured basal spines at near the proximal end of the basals. Spinules arise from the proximal part of the basals and parallelly elongate each other on the surface of the quadrangular pyramid edged by the 4 basal spines. Spicules amalgamate to make a lamellae or net in some species.” ( Furutani 1990: 43).

REMARKS

Amon et al. (1995:7) assigned the type species to Palaeoscenidium , noting that the development of the spinules that form the net varies with ontogeny and preservation. MacDonald (2004: 260) argues that the validity of this genus is not based on the development of the spinules, but on the stability and position of the ray number (8). He offers an emendation to the diagnosis, but it is not consistent with his discussion and, as a consequence, it is not adopted herein. Despite the stability of the ray position, the description overlaps with that of Palaeoscenidium , for which reason the genus is treated as a junior synonym.