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A Trilobite posted an image in the group
Shocking Shark Teeth from the myFOSSIL app 3 years, 1 month ago 3 years, 1 month ago3 years, 1 month agoThey just found this “winged” shark in 93 Mya sediment in Mexico. It lived 30 million years before rays, so wings evolved separately at least twice. Also it was a filter feeder that swam slowly and ate plankton. It had a “wingspan” of 6.2 feet and a body length of 5.4 feet.
@bill-heim and @jack-parker-tyreman you might be interested in this
Ray teeth go back to the Hauterivian (132 mya) of the lower Cretaceous. We don’t know what their body plan looked like but they were probably not much different than other rays. Interesting animal anyways.
@bill-heim i forgot to say that the article was talking about manta rays. Also according to Wikipedia rays as a whole go back to the early Jurassic, around 190-182 mya in the Pliensbachian age.
I have always been completely dumbfounded to know that something can evolve pretty much the same but at different times by didn’t organisms. That is just so wild. Same with wings: think bugs vs birds a bats. So cool!!