FOSSIL

In general, permission is required from somebody to collect fossil vertebrate material in the US. An exception is often made in practice for shark teeth and occasionally for disarticulated marine vertebrate bones, but that can't really be counted upon. Always ask. There are limits on the amount of petrified wood than can be collected on public land. Rules for collecting invertebrate and plant material vary widely especially in 'wilderness areas'. Permission is always required to collect on private property. Digging holes where you do not have permission to dig or are unfamiliar with the rules is almost always a bad idea... Most of the distances are in kilometers and meters. For practicality, a meter is a bit over 3 feet (a yard), and a kilometer is 5/8 of a mile. Most of the English measurements: Miles, Yard, Feet, have been taken off the list, but some were probably overlooked... Geologic Periods are shown as 'Period Middle, Upper or Lower' instead of the more conventional form of,..