Difference between revisions of "Downiesphaeridium polyacanthum"
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Revision as of 15:48, 4 December 2016
"polyacanthum" (Gitmez, 1970, p.284-286, pl.12, fig.10; text-fig.22) Islam, 1993, p.84. Holotype: Gitmez, 1970, pl.12, fig.10; text-fig.22b; Fauconnier and Masure, 2004, pl.23, figs.6-7. Originally Cleistosphaeridium, subsequently Cleistosphaeridium?, thirdly Downiesphaeridium. Taxonomic senior synonym: Hystrichosphaeridium (now Impletosphaeridium?) polytrichum, according to Masure in Fauconnier and Masure (2004, p.196). Taxonomic senior synonym: Baltisphaeridium (as Cleistosphaeridium) iaculigerum, according to Brenner (1988, p.42) - however, neither Islam (1993, p.84), who retained Downiesphaeridium polyacanthum, nor Masure in Fauconnier and Masure (2004, p.196) followed this synonymy. Age: Early Kimmeridgian.
Parent: Downiesphaeridium