An Overview of Dinosaur Tracking, Fig. 1
Copyright © 1994 by
Glen J. Kuban
A. Track Formation and Preservation
Diagram showing a true track, natural
cast, undertracks, and track infilling as they might
appear in rock strata. Adapted from Lockley (1991).
B. Track Variations Related to Sediment Consistency.
All the tracks shown were made by a single dinosaur stepping on
substrates of different concistencies, with the firmer substrates
at left and the softer ones on the right. Notice the absence
of distinct pads in the deeper prints (at right). The right-most
track suffers from "mud collapse" or "mud back-flow," where soft
sediment slumps back into a track depression, distorting its shape.
Adapted from Thulborn
C. Basic Trackway Measurements.
Pace angles (also called step angles or pace angulations) may be
calculated useing trigonometry once pace and stride measurements
are made. On a quadruped trackway, these measurements should be made for
both rear and front prints. One should also measure individual print
lengths, widths, depths, and digit dimenstions and angles.
(C) 1994, Glen J. Kuban
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