Lapidopiscum Deflandre, 1958 sensu Holdsworth (1971)

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 : 421-422

Lapidopiscum Deflandre, 1958 sensu Holdsworth (1971)

Lapidopiscum Deflandre, 1958: 2280 . — Holdsworth 1971: 345.

Huasha Cheng, 1986: 71 .

TYPE SPECIES. — Lapidopiscum piveteaui Deflandre, 1958 ( Deflandre 1958: 2278, fig. 2).

AGE AND LOCATION OF TYPE MATERIAL. — Visean (Lower Carboniferous), Cabrières, Hérault, Montagne Noire, France.

TAXON CODE. — 004.

STATUS. — Valid.

ORIGINAL DIAGNOSIS. — “Coque siliceuse mince, en cloche asymétrique, à columnelles dorsale et ventrale prolongées hors de la coque en deux cones coalescents spongieux.” ( Deflandre 1958: 2280).

DIAGNOSIS (English translation by J. P. Caulet RadWorld database – modified by Taniel Danelian). — “Thin siliceous shell, in the shape of an asymmetrical bell, with ventral and dorsal comunellae that extend along the outside of the shell in two coalescing spongy cones”.

REMARKS

Holdsworth (1971) and Won (1998) provide more detailed descriptions of this genus. Won (1998) notes that the test is a closed triangular skeletal frame of intersector, a-, and b- rods, with four extra-triangular extensions developed; i.d., b.d., i.v., and b.v, but that two ventral extensions (i. v. and b.v) may be obscured by spongy patagium ( Won 1998). Lamellar shell covering is perforate ( Won 1998) and bell-shaped ( Deflandre 1958). Fully developed caveal ribs, three to four pairs observed in type species, originating on a.t. rod below b.d. extension ( Holdsworth 1971). Well-developed patagium surrounding ventral side of the frame.