Echinoderm used in a sentence

Echinoderm in a sentence as a noun

You don't need to look very hard to find evidence to the contrary.> Fossils have been visible and common throughout most of natural history, and so documented human interaction with them goes back as far as recorded history, or earlier.> There are many examples of paleolithic stone knives in Europe with fossil echinoderms set precisely at the hand grip, going all the way back to **** heidelbergensis and neanderthals.