They were transitional and they did live. Why would you say that a
half-evolved leg which wouldn't support the weight of acanthostega isn't a
transition? Afterall, there are no legs prior to that time. We are going
from a time of NO LEGS to a time with legs.
glenn
Adam, Apes and Anthropology
Foundation, Fall and Flood
& lots of creation/evolution information
http://www.isource.net/~grmorton/dmd.htm