1. Fossils

2. Crinoid

5. Brachiopod

9. Gastropoda

10. Bryozoan

12. Coral

13. Bivalves

14. Cephalopods Nautiloids, ammonoids

15. Trilobites

16. http://www.freewebs.com/mosasaurfiend/northernarkansas.htm

17. Fossils

18. Crinoid

21. Brachiopod

25. Gastropoda

26. Bryozoan

28. Coral

29. Bivalves

30. Cephalopods Nautiloids, ammonoids

31. Trilobites

32. DLESE Teaching Boxes: Evidence for Plate Tectonics The Paleontology Portal Tour of Geologic Time Understanding Geologic Time USGS Fossils, Rocks and Time USGS Geologic Time online edition

33. http://www.freewebs.com/mosasaurfiend/northernarkansas.htm