What Did the First Male Copulatory Organs Look Like?

Scientists have discovered the first male copulatory organs in these fish. They're called claspers, they're like a bony rod that had little hooks and barbs on the end similar to a shark today has a cardilaginous clasp with little hooks and Barbs for depositing sperm. So as a design solution it just makes sense. It's a good way to do it. Can we just say this idea is sort of placard urns as these early sort of fish that first had to be copulated. What did their sexual organs look like? I'm glad you asked that question because me and my teams, not just me personally but other other colleagues I work with,