
1) Early Cretaceous fish
Found on
https://www.crosswordclues.com/clue/santanichthys

Santanichthys diasii is a species of extinct fish that existed around 115 million years ago. It is the earliest known fish that can be classified in the Otophysi. It appears as a small fish, similar in appearance to a modern-day herring no more than 30 centimeters in length. Its most striking characteristic is the presence of a Weberian apparatus,...
Found on
http://en.wikipedia.org/wiki/Santanichthys
No exact match found.