A lizard party, by Ernst Haeckel. Not jellyfish or diatoms or Lovecraftian marine creatures. Just lizards. Lots and lots of cold-blooded lizards.
A plate from Kunstformen der Natur illustrating Chamaeleon montium, Lophyrus tigrinus, Draconellus volans, Phrynosoma cornutum, Ptychozoon homalocephalum, Basiliscus americanus, Chlamydosaurus kingii, and the diabolically named Moloch horridus.
At least one of these, my cats have killed and dragged into my house to show me. Pleasures of living in ecologically disrupted Florida.