Lö­sung

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Pi­kaia NT small.​jpg by Nobu Ta­mu­ra [cc by-sa 4.0] via wi­ki­me­dia com­mons
Pro­missum NT small.​jpg by Nobu Ta­mu­ra [cc by-sa 4.0] via wi­ki­me­dia com­mons
Bo­thriole­pis ca­na­den­sis.jpg by Ci­tron [cc by-sa 3.0] via wi­ki­me­dia com­mons
Dunkle­o­steus ter­rel­li - MUSE.​jpg by Mat­teo De Ste­fa­no/MUSE [cc by-sa 3.0] via wi­ki­me­dia com­mons
Ne­re­pi­sa­can­thus.png by Da­ni­el­le Duf­ault [cc by 2.5] via wi­ki­me­dia com­mons

Bild­quel­len (von links nach rechts):
Guiyu BW.​jpg by Ar­thur Weas­ley [cc by-sa 3.0] via wi­ki­me­dia com­mons
Tiktaa­lik ro­seae life res­tor.jpg by Zina De­rets­ky [pd] via wi­ki­me­dia com­mons
Acant­hoste­ga model.​jpg by Dr. Gün­ter Bech­ly [cc by-sa 3.0] via wi­ki­me­dia com­mons
Sey­mou­ria2.jpg by Dmitry Bog­da­nov [cc by-sa 3.0] via wi­ki­me­dia com­mons
Hy­lono­mus ly­el­li - MUSE.​jpg by MUSE [CC BY-SA 3.0], via Wi­ki­me­dia Com­mons