Here's what the Rule Book says (starting at page 38):
Barbarians have the same life expectancy as a human.
Biata live a very long time, like the Stone elves from which they are descended.
Dark elves are capable of living for great lengths of time.
Spores are the youngest, living only a few mere decades. Thorns’ and Reeds’ average lifespans tend to be about a century, while Barkskins’ lifetimes are closer to those of the elves.
[Dwarven] life span is much longer than that of humans and other races (up to 500 years or so)
Elves also have very long lifespans. They mature at the same rate as humans until they reach their late teens, and then they age much more slowly and remain in maturity for many years. An elf that appears old is very old indeed.
[No mention of age under gypsy, but it's generally understood that they age at the same rate as humans]
High ogres have a very short life expectancy compared to other races, and they mature faster, so that your starting player may only be four years old!
[No mention of age under high orc, but it's generally understood that they age at the same rate as high ogres]
[No mention of age under hobling, but it's generally understood that they age at the same rate as humans]
Mystic Wood elves have no official documented life span. For all intents and purposes, they seem to be immortal and never seem to die of old age, but instead of accidents, battles and other causes.
The sarr, as a race, can live for as long as eighty years. Due to their society, however, very few live past the age of forty.
On average, stone elves live to be approximately 1200 years old.
[No mention of age under wylderkin, but it's generally understood that they age at the same rate as the animals they are based upon]
So in conclusion, there are guidelines but not tremendously strict ones; a starting character should never be very old though because otherwise you would have to explain why you don't have more skills.
