CATALOG - Leiosphaeridia asperata

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

Current identification:

Original Description

Acritax - Acritax_JWIP - Leiosphaeridia asperata compiled by John Williams and Brian Pedder

Taxon Search

• Archaeopsophosphaera asperata
• Asperatopsophosphaera asperata
• Dictyotidium asperatum
• Minutisphaeridium asperatum
• Nucellosphaeridium asperatum
• Pterospermopsis asperata
• Rugasphaera asperata
• Segmentothallus asperatus
• Trachyoligotriletes asperatus
• Trachypsophosphaera asperata

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