Many photo collections from the study of fossilisation (9)

I believe the answer is:

taphonomy

I'm a little stuck... Click here to teach me more about this clue!

'the study of fossilisation' is the definition.
I don't know anything about this answer so I can't judge whether this works.

'many photo collections' is the wordplay.
'collections' indicates anagramming the letters (I've seen 'collection' mean this (the same collection of letters)).
'many'+'photo'='manyphoto'
'manyphoto' is an anagram of 'TAPHONOMY'.

'from' is the link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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