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ピンもと:CBC News

Amazing Marble Canyon fossil site

Haplophrentis was a creature with a conical shell and fleshy arms / New Burgess Shale fossil site found in B.C.'s Kootenay National Park

ピンもと:CBC News

Amazing Marble Canyon fossil site

polychaete worm / New Burgess Shale fossil site found in B.C.'s Kootenay National Park

アミスクウィア Amiskwia sagittiformis 体長:2センチほど amiskwia_2010_06.jpg 一見して、現生のクリオネ風。 クリオネは貝殻を持たない肉食の貝の仲間(軟体動物)ですが、このアミスクウィアの場合、未だに、どこの誰なのか、分類上の定説は定まっていないようです。

ピンもと:Live Science

'Mother Lode' of Amazingly Preserved Fossils Discovered in Canada

Burgess Shale

Burgess Shale fossil, Marrella splendens from the Burgess Shale Formation, Yoho National Park, British Columbia. ROM Images

Massive fossil deposit found in Canada’s Kootenay National Park--In over 100 years of research, approximately 200 animal species have been identified at the original Burgess Shale discovery in Yoho National Park in over 600 field days. In just 15 days of field collecting, 50 animal species have already been unearthed at the new Kootenay National Park site.