I know late-surviving trilobites or ammonites are a pipe dream, but surely it's feasible for a relict population of RUGOSE CORAL to have survived, somewhere in the unexplored deep? Surely if living monoplacophorans can be found after a 375 million year absence from the fossil record, RUGOSE CORALS could be waiting to be rediscovered in some abyssal refugium?
>>5142674The problem with deep ocean survival ideas is that the deep ocean is vulnerable to ocean anoxia, so its only been recolonised by organisms relatively recently
>>5142674They don't want you to know it, but horseshoe crabs are actually trilobites. And Nautiluses exist. I think rugose corals may have just turned into Scleractinian corals.
