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Appendix A

Xanthidium tubiferum var. recurvatum

"Xanthidium tubiferum var. recurvatum" White, 1842, p.39, pl.4, fig.12.

TYPE: Holotype: White, 1842, pl.4, fig.12.

HISTORY: NOW: Hystrichosphaeridium recurvatum. Originally Xanthidium tubiferum var. recurvatum, subsequently (and now) Hystrichosphaeridium recurvatum.

SYNONYM(S): Nomenclatural junior synonyms: Xanthidium tubiferum var. palmaforme, Xanthidium tubiferum var. palmatum and Hystrichosphaeridium duplum, all of which have the same holotype as Xanthidium tubiferum var. recurvatum.

AGE: Senonian.


Infraspecific taxa:


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DINOFLAJ (c) 1998