how did seahorses evolve and what from?

Question

i need their evolution history starting from the earliest form of seahorses

i need to know how long the organism has been around
what its ancestors were like
homology to relatives

Answer 1

http://www.ru.ac.za/academic/departments/botany_research/peter/Website_PDF/Teske%20et%20al.%202004.pdf

And if that's not enough:

http://www.isidore-of-seville.com/seahorse/1.html

Answer 2

I couldn't find much at all, unfortunately :(

Here's a student paper describing several differing theories on where they came from : http://jrscience.wcp.muohio.edu/fieldcourses07/PapersMarineEcologyArticles/Seahorses.FishoftheSeaFin.html

"The oldest fossils of seahorses date back to the Eocene, which is about 40 million years ago during the Cenozoic Era."

And here's a bizarre site which claims God created seahorses by magic : http://www.answersingenesis.org/creation/v16/i3/seahorse.asp