Parasecuicollacta Won, Blodgett & Nestor, 2002

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 : 436-437

Parasecuicollacta Won, Blodgett & Nestor, 2002

Parasecuicollacta Won, Blodgett & Nestor, 2002: 953 .

TYPE SPECIES. — Parasecuicollacta bipola Won, Blodgett & Nestor, 2002 (Won et al. 2002: 953, fig. 3.1-3.6, 3.14-3.17).

AGE AND LOCATION OF TYPE MATERIAL. — Llandoverian, Lower Silurian, Road River Formation, Alaska, USA.

TAXON CODE. — 071.

STATUS. — Junior synonym of Secuicollacta Nazarov & Ormiston, 1984 (by Jones & Noble 2006).

DIAGNOSIS. — Spherical skeleton consisting of a single shell with zero to 12 or more primary spines; shell wall thick with six (or fewer?) to 12 or more primary units consisting of four to seven primary rods, each with or without a primary spine; meshwork consisting of primary and secondary rods; except for the spines; all skeletal elements of the outer surface producing a lumpy surface or one covered with ragged elements that can form a pseudospongy very thin and delicate layer covering the shell; no internal structure present.” (Won et al. 2002: 953).

REMARKS

The lumpy or ragged surface appears to be a function of the development of secondary spines and was deemed insufficient to warrant a new genus ( MacDonald 2003; Jones & Noble 2006).