Acritax - Acritax_JWIP - Helosphaeridium Acritax - Acritax_JWIP - Helosphaeridium

CATALOG - Helosphaeridium

Folder trail: Acritax_JWIP -> H -> Helosphaeridium
Folders this level: Hallotheca, Halodinium, Halophoridia, Halosphaera, Halosphaeridium, Halythrix, Haplocystia, Hapsidopalla, Heliconema, Helicothrichoides, Helios, Heliospermopsis, Heliosphaeridium, Helminthoidichnites, Heloriopodum, Helosphaeridium, Hemibaltisphaeridium, Hemideunffia, Hemiruptia, Hemisphaeridium, Hemisphaeriella, Hercyniana, Heteromorphidion, Heteropetalia, Hexasterias, Hidasia, Himalayisphaeridium, Hirtellosphaeridium, Histopalla, Hocosphaeridium, Hoegklintia> >>

This catalog consists of scans of cards from the "John William Index of Palaeopalynology" compiled by John Williams between 1971 and 2010 - see also this page.
The cards inclued here are only those for the acritarchs, they are sorted alphabetically for simple browsing. You can also use search boxes at the top & bottom of the page to find specific taxa
There are PDF (higher quality) and jpeg (faster opening) copies of the cards, the content of them is identical

Helosphaeridium citrinipeltatum

Helosphaeridium citrinum

Helosphaeridium clavatus

Helosphaeridium clavipilosum

Helosphaeridium clavispinulosum

Helosphaeridium echiniforme

Helosphaeridium guttatum

Helosphaeridium latispinosum

Helosphaeridium magnum

Helosphaeridium malvernensis

Helosphaeridium microclavatum

Helosphaeridium paxillum

Helosphaeridium pseudodictyum

Helosphaeridium psilata

Helosphaeridium rarum

Helosphaeridium siluricum

Helosphaeridium tuberculiferum

Helosphaeridium varispinosum

Current identification:

taxonomic rank: Genus


Acritax - Acritax_JWIP - Helosphaeridium compiled by John Williams and Brian Pedder

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Short stable page link: Go to to create a permanent copy of this page - citation notes
Possible link to Algaebase for nomenclatural details: Helosphaeridium

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