Abstract

Polystephanosphaera is a junior homonym of Systematophora; its type species, P. valensii, falls within the genus but not within any of the known species. The new genus Polystephanephorus is erected for other hystrichospheres from upper Jurassic localities of Yorkshire and Dorset, England, which had been assigned to Polystephanosphaera.

You do not currently have access to this article.