👉 Prohyptiasmus is a type of hyptasmium, an extinct group of small arthropods from the Mesozoic era that lived during the late Cretaceous period (about 65 to 68 million years ago). They were characterized by their large size and short legs, which allowed them to move quickly through the air. Prohyptiasmus is known for its unique appearance, with a flattened body shape and a distinctive white or gray coloration on its hind
