Looks like Coprinus comatus, but still it's an atypical specimen. Might check Coprinus spadiceisporus or something from that subsection (sub.sect. Coprinus). Or you could check out some other Coprinus species on the following site:
http://www.grzyby.pl/coprinus-site-Kees-Uljee/species/spadicei.htm
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