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カテゴリー
【古生物学】翼のような胸びれ持つ「イーグルシャーク」 太古の新種ザメ発見



1: すらいむ ★ 2021/03/19(金) 19:21:18.03 ID:CAP_USER
翼のような胸びれ持つ「イーグルシャーク」 太古の新種ザメ発見

【AFP=時事】翼のようなひれを持つ太古のサメの新種の存在が明らかになった。
19日の米科学誌サイエンス(Science)に掲載された論文によると、このサメは大型のエイであるマンタが出現するはるか昔に生息しており、プランクトンを餌にしていたという。

研究対象となったサメの化石は2012年、メキシコ北東部の化石の宝庫バジェシージョ(Vallecillo)で発見された。
「Aquilolamna milarcae」という学術名を持つこのサメは、全長約1.65メートルで、ひれの先端から先端までの長さは1.9メートル。約9300万年前に生息し、プランクトンを餌にしていた。

「イーグルシャーク」の異名を持つこのサメは、今日のエイのように、翼のような極度に長い胸びれを持っていた。

論文の著者らは、この「奇妙な」サメはおそらく非常にゆっくり泳ぎ、餌を追い求めることはできなかったのではないかと指摘する。

(以下略、続きはソースでご確認下さい)

AFP=時事 3/19(金) 13:34
https://news.yahoo.co.jp/articles/bfaac29ac606d310fc6a3e9fc63560f023331b69

引用元: ・【古生物学】翼のような胸びれ持つ「イーグルシャーク」 太古の新種ザメ発見(Science) [すらいむ★]

2: 名無しのひみつ 2021/03/19(金) 19:28:49.39 ID:R4utEl9t
俺たちの魂も燃えている
3: 名無しのひみつ 2021/03/19(金) 19:32:04.39 ID:daJHMPz3
戦闘機の名前にお勧め
4: 名無しのひみつ 2021/03/19(金) 19:34:08.92 ID:orT7mz9L
焼いて食ったらウミャい?
5: 名無しのひみつ 2021/03/19(金) 19:36:23.25 ID:NnhrSi6X
戦隊に居そうな名前やな
7: 名無しのひみつ 2021/03/19(金) 19:41:54.96 ID:LKKocsmL
サメとエイの身体的特徴を持っているとか。
https://switch-news.com/science/post-60373/
14: 名無しのひみつ 2021/03/19(金) 20:22:09.46 ID:3MCbh5fB
よく化石が残ったな
19: 名無しのひみつ 2021/03/19(金) 21:01:45.17 ID:V+37E19l
no title

no title

29: 名無しのひみつ 2021/03/19(金) 22:21:40.75 ID:TFt3NnWd
>>19
化石の状態が素晴らしいな
骨は軟骨のはずなのにきれいに残ってるし
まわりにも他の魚の骨が見える
21: 名無しのひみつ 2021/03/19(金) 21:20:18.57 ID:/de2CDDO
F15の最強部隊みたいな名前
34: 名無しのひみつ 2021/03/20(土) 00:35:56.68 ID:v9WuDkmg
マンタとシノノメサカタザメをかけ合わせたら爆誕しそうだな
no title

no title

35: 名無しのひみつ 2021/03/20(土) 00:46:39.11 ID:AsAPAtZp
イーグル
シャーク
パンサー
37: 名無しのひみつ 2021/03/20(土) 01:00:04.86 ID:N7w5yLFg
七つの大罪にでてたぞ
46: 名無しのひみつ 2021/03/20(土) 10:18:51.49 ID:dNHioX/c
真っ先にパンサーが浮かんだけど、みんなのレス見て納得
52: 名無しのひみつ 2021/03/21(日) 13:03:47.82 ID:T4vavsYZ
まあ1割引くらいで戦争沙汰よね
56: 名無しのひみつ 2021/03/21(日) 13:58:29.65 ID:eLaHIlf3
こう言うスレかと思ったけど、やっぱりなーと思ってしまったw
でも,
愛国戦隊 大日本
がなかったのはちょっと寂しい
63: 名無しのひみつ 2021/03/21(日) 15:48:50.26 ID:J9ac80S2
サメというよりエイ
こちらもご覧ください