Some fossils are not actual remains of an organism, such as bones, teeth, leaves, and seeds. A trace fossil is a fossilized track, trail, burrow, boring, or other structure that records the presence or behavior of the organism that made it rather than a piece of the organism itself.
Late Triassic Trace Fossils found in Petrified Forest National Park
Archeoentomichnus metapolypholeos Hasiotis and Dubiel 1995
Kouphichinium arizonae Caster 1944
Paleobuprestis maxima Walker 1938
Paleobuprestis minima Walker, 1938
Paleoscolytus diverges Walker, 1938
Paleoipidus perforatus Walker, 1938
Paleoipidus marginatus Walker, 1938
Did You Know?
Petroglyphs are sometimes calendars, marking events like the summer solstice with interactions between the glyph, the sun, and natural landscape features.