Trace Fossils

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Across
  1. 1. ichnofacies dominated by crawling, deposit feeding and shelter traces, typical of estuarine, lagoonal or shelf environments
  2. 5. ichnofacies dominated by deep vertical and U-shaped burrows, typical of nearshore environments with shifting sediment
  3. 6. ichnofacies typical of fully lithified substrates containing burrows, borings and grazing traces
  4. 9. activity that produces continuous, elongate trails
  5. 11. activity that creates anastomosing tubular network traces, or straight or U-shaped burrows
  6. 12. activity that creates traces made up of complicated horizontal networks with a regular, patterned branching structure
Down
  1. 2. activity that produces distinct laminations parallel to the main burrow (spreiten)
  2. 3. the reworking of sediment by organisms
  3. 4. ichnofacies dominated by complex feeding traces typical of the deep shelf and continental slope
  4. 7. the study of trace fossils
  5. 8. activity that produces furrowed, meandering trails that rarely cross
  6. 10. ichnofacies characterised by systematic grazing of the sea floor, typical of the abyssal plain