1. However, these reported trace fossils are now regarded to be nonbiogenic pseudofossils. 2. A coprolite is fossilized feces and is classified as a trace fossil . 3. However, most trace fossils lack sufficiently complex details to allow such classification. 4. Their club-shaped borings are given the trace fossil name " Gastrochaenolites ". 5. In this scientific quest, macrofossils, microfossils and trace fossils are typically analyzed. 6. Others include mollusks and the tubular trace fossil " Halymenites major ". 7. Several species of insect trace fossils have been recorded as well. 8. Worms left behind trace fossils in the form of their borings and tubes. 9. Planolites are trace fossils made during the feeding process of ancient wormlike animals. 10. There are a few trace fossils , which resemble arthropod trails.
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