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appbank: tscp: jacony: nemoi: onhook: plasticdreams: まとめたニュース:【画像あり】琥珀に閉じ込められていた現存最古1億4000万年前の「クモの巣」…他にも細菌が確認される - livedoor Blog（ブログ） 現在確認されている「世界最古のクモの巣」は、英国サセックスの海岸で採取されたものだ。 発見されたときは、古い琥珀の塊に閉じ込められていた。 この希少な琥珀化石が見つかったのは2008年12月のことだ。 専門家によって、琥珀にクモの糸の切れ端が含まれており、現在のコガネグモ科の祖先が、約1億4000万年前に吐き出した糸であることが確認された。 スピノサウルスやプシッタコサウルスが地上を闊歩していた白亜紀前期の、琥珀化石におけるクモの糸の実例はこの発見が初めてだ。

appbank:

tscp:

jacony:

nemoi:

onhook:

plasticdreams:

まとめたニュース:【画像あり】琥珀に閉じ込められていた現存最古1億4000万年前の「クモの巣」…他にも細菌が確認される - livedoor Blog（ブログ）

現在確認されている「世界最古のクモの巣」は、英国サセックスの海岸で採取されたものだ。
発見されたときは、古い琥珀の塊に閉じ込められていた。

この希少な琥珀化石が見つかったのは2008年12月のことだ。
専門家によって、琥珀にクモの糸の切れ端が含まれており、現在のコガネグモ科の祖先が、約1億4000万年前に吐き出した糸であることが確認された。

スピノサウルスやプシッタコサウルスが地上を闊歩していた白亜紀前期の、琥珀化石におけるクモの糸の実例はこの発見が初めてだ。

Reblogged 3 weeks ago from appbank (originally from plasticdreams)
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