| 1000 Prehistorc Animals | Dinosaurs, Fossils, Ruins | Articles and News |

  • Home
  • Anthropology
  • Archaeology
  • Evolution

    • Evolution / Charles Darwin

      Life on Earth evolved from a universal common ancestor approximately 3.8 billion years ago...

  • Paleontology


Last update04:28:52 PM GMT

Back Blog The First Fish - Pikaia
18 Mar 2012

The First Fish - Pikaia

When you delve back 500 million years into the history of life on earth, the honorific "first fish" loses some of its meaning. Thanks to the notochord (the primitive precursor of a true spinal column) that rand down the length of its back, Pikaia was not only the first fish, but the first vertebrate animal, and thus ancestral to mammals, dinosaurs, birds, and innumerable other types of creature. For the record, Pikaia was about two inches long, and so thin that it was probably translucent. It's named after Pika Peak in Canada, near where its fossils were discovered.

Last modified on Monday, 03 June 2013 21:16

First Bird

First Bird
What was the earliest known bird?

Unexplained artifacts

unexplained artifacts
The 10 most amazing unexplained artifacts


Timeline: Human Evolution

Biggest Dinosaurs

The 10 Biggest Dinosaurs


Fossil Formation: How Do Fossils Form?

Book review

Dinosaurs Encyclopedia

Book Review

Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages ... WRITTEN BY A PROFESSIONAL paleontologist specifically for young readers, this guide to the Dinosauria is packed...