Not sure re "aliens", but 'humans' with 5-6m heads, 50m top head to end fingers, so ~100m tall, yep, they existed, along with GIANT turtles, EELS, Crocs(?), and a GIANT "claw" … ~50m?, so BIG hands
Not sure re "aliens", but 'humans' with 5-6m heads, 50m top head to end fingers, so ~100m tall, yep, they existed, along with GIANT turtles, EELS, Crocs(?), and a GIANT "claw" … ~50m?, so BIG hands