I saw this anime years ago,its from the 80s or 90s.It was about a boy who founds an egg where a dinosaur or dragon,blue colored,comes out.He names it Q or Qoo.He lives with his father on an little Island and they have two dolphins,who get killed at the end.I really don't remember much,because it is over 10 years,that I saw it.Please can anyone help me?Im searching for years.Thanks in advance =)

Was this a TV show, or a movie?
Just searching madly for it for you... I'll let you know if I find anything :D
I feel like I got a good lead but I thought id ask that bit just in case haha

And doiii I didn't even notice it's right in your title -_-
Sorry nyeh nyeh, Still searching though I found a pretty good database to look through!

Sounds like,.

Coo:
Come from a Distant Ocean Coo

-more info- (http://www.animenewsnetwork.com/encyclopedia/anime.php?id=1943)

view trailer/promo (http://www.youtube.com/watch?v=vpoIY1OGtKw)

OMG!It's really that movie!Thank you so so much!♥♥♥