HOW TO COLLECT

When a likely collecting spot has been located, the ground should be

examined very carefully to see if there are any rock fragments which

contain pieces of shell or the imprints of leaves or other organisms.

If the fossils have been freed by weathering, they can be easily picked

up and placed in the bag. Many times, however, it will be necessary to

take the hammer and very carefully remove the surrounding rock. Smaller

specimens may be more safely freed with the careful use of the proper

size chisel by gently tapping the chisel and gradually chipping away the

_matrix_—the rock that is holding the specimen. After most of the matrix

has been removed, the fossil should be carefully wrapped and placed in

the collecting bag.

Before leaving a collecting locality, one should be sure to record its

geographic location and the geologic age of the rock in which the

fossils were found. The place should be located on the map and the

locality entered in the notebook in such a manner that it could easily

be located again for additional collecting. If a county or topographic

map is available, it is wise to mark the locality on the map. The

geographic and geologic data should be written on a label placed in the

bag of fossils collected at that particular locality. In addition, many

collectors find it helpful to write the locality on the outside of each

bag of fossils.

Material from separate localities should be kept in individual cloth or

paper bags, and the collector should take every precaution to keep the

labels with their respective fossils. Remember that _a fossil without a

locality is hardly worth the paper it is wrapped in_.

The collector should _always_ ask the land owner’s permission before

entering or collecting on private property. One should respect all

property, especially livestock and fences, and leave the area cleaner

than when entered. If these precautions are observed, future collectors

will probably be welcome to return for additional collecting.

Texas Fossils: An Amateur Collector's Handbook · 第 50 / 196 题