Poings: @Crystal Vulptex @11duckhunt @Savage Almond @Dinoguy22 @Fire Campaign

Stethacanthus by CGZen

Egertenodus by Nobu Tamura

Genuinely might be the weirdest set of fins that a fish has evolved. Aside from the ones on Remoras of course.

Barstool shark my beloved

The spiky one