are long arm prawns a living fossil

prawnman88 · Post by **prawnman88** » Fri Dec 30, 2005 9:02 am

i know horseshoe crabs are living fossil's but are rosenbergi or other's a very old species ? i look at pics and im thinking if something that nasty must be a survivor ? im jsut curious

Post by **Mustafa** » Sat Dec 31, 2005 8:56 am

Macros are not living fossils. They developed from supposedly one marine ancestor about 10 million years ago. Considering the worldwide distribution of these shrimp I would not be surprised if several, closely related marine shrimp were the ancestors of macros.

prawnman88 · Post by **prawnman88** » Sat Dec 31, 2005 9:18 am

ok kool thank u mustafa well hey 10 million year under your belt is still better then our track record as being humans