GEL 107 (14)

GEL 107 (14) - GEL107: PALEOBIOLOGY What are ichnofossils?...

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1 GEL107: PALEOBIOLOGY Lecture 15: Trace Fossils What can burrow and nest fossils tell us? What can coprolite tell us? What can trackway fossils tell us? What are ichnofossils? What are the major types of trace fossils? What are ichnofacies? Ichnofossils Fossilized traces of organisms, but not the organisms themselves = trace fossils What can burrow and nest fossils tell us? What can coprolite tell us? What can trackway fossils tell us? What are ichnofossils? What are the major types of trace fossils? What are ichnofacies? Trackway Coprolites
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2 Nests/Burrows Borings Root marks What can burrow and nest fossils tell us? What can coprolite tell us? What can trackway fossils tell us? What are ichnofossils? What are the major types of trace fossils? What are ichnofacies? Group Behavior Walking/Running Speed
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3 Calculating Dinosaur Speed u = 1.4 (l / h) – 0.27 u = running speed, l = stride length, h = hip height stride (l) step Alexander (1976) hip height (h) L R ANG SL 4 3 2 ab Day et al. (2002) 6.8 km/h 29.2 km/h Hip height 1.98 m
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4 Foot Motion Posture
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5 What can burrow and nest fossils tell us?
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This note was uploaded on 12/13/2009 for the course GEL GEL 107 taught by Professor Jishin during the Spring '09 term at UC Davis.

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GEL 107 (14) - GEL107: PALEOBIOLOGY What are ichnofossils?...

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