Talk:Acritarch

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Age range[edit]

Where does the 2000-400 Ma range come from, acritarchs are present before, and after that time. —Preceding unsigned comment added by 130.238.140.203 (talk) 12:41, 9 October 2008 (UTC)

Changed the end date to the present, from this ref [1], amongst lots of others. Mikenorton (talk) 15:18, 9 October 2008 (UTC)
Now I've changed the start date to ~2500 Ma from this ref [2]. Mikenorton (talk) 15:23, 9 October 2008 (UTC)
If the end date is the present, the text should mention who they are now. Albmont (talk) 20:21, 23 June 2009 (UTC)

Well, because acritarchs are not a specific biological taxon, but rather a group of fossils with unknown affinities. Anything that is organic-walled and falls within the criteria is an acritarch even today. I can think of examples that falls within that category but as soon as it is properly identified it ceases to be an acritarch. Therefore it is impossible to who they are now, they can still be anything. Hmmm, i dont think it is easy to explain this...someone else try please?

The diversity section does not actually talk about the diversity of the subject matter, it just discusses the diversity of fossils as they relate to predation, I suggest a change in the heading —Preceding unsigned comment added by 146.186.145.175 (talk) 01:42, 26 October 2009 (UTC)

3.200 million years[edit]

that is the Mesoarchean - is that true? -- Hartmann Schedel II (talk) 20:46, 12 August 2015 (UTC)