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Phytolith Record Of Deep- Time Vegetation Dynamics: Early-Late Miocene Of Vasa Park, Washington Tony Jijina 1 Caroline Strömberg 1,2 Richard Dillhoff 2.

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Presentation on theme: "Phytolith Record Of Deep- Time Vegetation Dynamics: Early-Late Miocene Of Vasa Park, Washington Tony Jijina 1 Caroline Strömberg 1,2 Richard Dillhoff 2."— Presentation transcript:

1 Phytolith Record Of Deep- Time Vegetation Dynamics: Early-Late Miocene Of Vasa Park, Washington Tony Jijina 1 Caroline Strömberg 1,2 Richard Dillhoff 2 Thomas Dillhoff 2 1 – University of Washington, Seattle, WA, 2- Burke Museum, Seattle, WA

2 Mid-Miocene Climatic Optimum Oldest Youngest

3 Oldest Youngest Mid-Miocene Climatic Optimum

4 Vasa Park, WA

5

6 VASA PARK

7 Outline -Geology -Phytolith -Macroflora -Pollen -Conclusions

8 Vasa Park Beds

9 Haugerud et al., 2003 40 Ar/ 39 Ar dating: 11.4 Ma Vasa Park Beds late Miocene

10 Vasa Park Beds

11 Macrofossils Vasa Park Beds

12 Pollen and Phytolith Vasa Park Beds

13 Outline -Geology -11.4 Ma, 3 lines of fossil evidence -Phytolith

14 What is a Phytolith?

15 10µm What is a Phytolith? 10µm

16 What is a Phytolith?

17 Methods 10µm

18 Preliminary Phytolith Data VS. 10µm Forest IndicatorGrassland Indicator

19 Phytolith Preliminary Phytolith Data

20

21 Oldest Youngest Forest Indicator

22 Preliminary Phytolith Data Oldest Youngest PACMAD Grass (Warm- adapted)

23 After Hunt (1990) Preliminary Phytolith Data

24 Outline -Geology -11.4 Ma, 3 lines of fossil evidence -Phytolith -Forest dominated, warm-adapted grasses -Macroflora

25 After Hunt (1990) Preliminary Macroflora Data

26 Outline -Geology -11.4 Ma, 3 lines of fossil evidence -Phytolith -Forest dominated, warm-adapted grasses -Macroflora -Woody, riparian vegetation -Pollen

27 Pollen Preliminary Pollen Data

28 After Hunt (1990) Preliminary Pollen Data

29 Summary -Geology -11.4 Ma, 3 lines of fossil evidence -Phytolith -Forest dominated, warm-adapted grasses -Macroflora -Woody, riparian vegetation -Pollen -Lower: dominated by upland conifer -Upper: dominated by lowland floodplane vegetation

30 Future Work -Address climate in late Miocene of Pacific Northwest

31 Acknowledgements FRIENDS, FAMILY, AND COLLABORATORS Brian Sherrod Susie Winkowski Johnathan Hager Brian Buchwitz Regan Dunn Elisha Harris Marijana Surkovic Davis Avery Cook Shinneman Stephanie Zaborac-Reed Don Hopkins Jeff Benca Erik Fredrickson Kim Smith Thien-Y Le Janine Jijina Henry Hannah Ginn SUPPORT AND FINANCING Strömberg Lab Vasa Park Resort Burke Museum of Natural History and Culture Mary Gates Research Grant Scholarship Howard Hughes Medical Institute University of Washington Department of Biology The Geological Society of America Travel Grant

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