The statement "It must have lived through a long span of time" is not a factor in a fossil organism being useful as an index fossil. In fact, a key characteristic of an index fossil is that it must have a short, well-defined time range in which it existed, making it suitable for dating and correlating the age of rock layers.
Which is not a factor in a fossil organism being useful as an index fossil?
It must be limited to a short span of geologic time.
It must be abundant.
It must be widespread geographically.
It must have lived through a long span of time.
1 answer
1 answer