1) Transitional fossil
Found on
https://www.crosswordclues.com/clue/andreolepis
Andreolepis is an extinct genus of the order Actinopterygii, placed in the monogeneric family Andreolepididae. The known species of this genus are A. hedei and A. petri. A. hedei has proven so far to be the earliest-known actinopterygiian, living around 420 million years ago. Both species inhabited Russia, and A. hedei fossils have also been uncov...
Found on
http://en.wikipedia.org/wiki/Andreolepis
(from the article `Life Sciences`) The discovery of two fragmentary specimens of fish from about 420 million years ago in the Late Silurian shed light on the origin of the ...
Found on
http://www.britannica.com/eb/a-z/a/72
No exact match found.
