Jack Stack on Mythryl: “Peltopleurids are also neat for having one of the earliest…”

@jackstack.bsky.social

Peltopleurids are also neat for having one of the earliest gonopodium examples in a ray-finned fish. This is a modified anal fin in an inferred male individual, by Lombardo (1999).

Zach@reallyoldfish.bsky.social

Peltopleurids and haplolepids. Divided by a gulf of time, united by a love for the game. Actually a wild case of convergence. Haplolepids are a Carboniferous clade known almost exclusively from coal-swamps, while peltopleurids are Triassic fishes known from marine environments.

23/10/26, 2:15 am2 reposts6 likes

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