Acritax - Acritax_JWIP - Pachysphaeridium Acritax - Acritax_JWIP - Pachysphaeridium

CATALOG - Pachysphaeridium

Folder trail: Acritax_JWIP -> P -> Pachysphaeridium
Folders this level: Pachysphaera, Pachysphaeridium, Palacanthus, Palaeastrum, Palaemorpha, Palaeoanabaena, Palaeoanacystis, Palaeoaphanizomenon, Palaeoarcella, Palaeoasterocapsa, Palaeobion, Palaeoborzia, Palaeocalothrix, Palaeochroococcus, Palaeocladophora, Palaeococcus, Palaeocryptidium> >>

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

Pachysphaeridium balticum

Pachysphaeridium brevispinosum

Pachysphaeridium bulbosum

Pachysphaeridium christianii

Pachysphaeridium grandispinosum

Pachysphaeridium irregulare

Pachysphaeridium kjellstroemii

Pachysphaeridium mochtiense

Pachysphaeridium pachyacanthum

Pachysphaeridium pachyconcha

Pachysphaeridium peregrinum

Pachysphaeridium rhabdocladium

Pachysphaeridium robustum

Pachysphaeridium sidereum

Pachysphaeridium striatum

Pachysphaeridium suecicum

Pachysphaeridium vermiculiferum

Current identification:

taxonomic rank: Genus


Acritax - Acritax_JWIP - Pachysphaeridium 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: Pachysphaeridium

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