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Uploaded:2019-05-30
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Modern-day Ohio is more than 600 kilometers from the ocean - yet it has thousands of ocean fossils dating back to the Ordovician, giving us a glimpse at its past under an ancient, fishless sea.

Hosted by: Hank Green
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Sources:
https://kb.osu.edu/dspace/bitstream/handle/1811/78494/1/OGS_1992_GB-12.pdf
http://jrscience.wcp.miamioh.edu/downloads/Ordoviciangeology.pdf
https://ucmp.berkeley.edu/silurian/silurian.php
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4648279/
https://ucmp.berkeley.edu/vertebrates/vertfr.html
https://ucmp.berkeley.edu/ordovician/ordovician.php
https://www.nytimes.com/2018/10/25/science/fish-evolution-shallow-coasts.html
http://science.sciencemag.org/content/362/6413/402
http://www.ohiohistorycentral.org/w/Ohio%27s_State_Fossil_-_Isotelus
https://kb.osu.edu/handle/1811/22911
http://science.sciencemag.org/content/362/6413/402
https://www.cambridge.org/core/journals/geological-magazine/article/nonmarine-arthropod-traces-from-the-subaerial-ordovician-borrowdale-volcanic-group-english-lake-district/A203763DC4AEA05D731966614AB2DE30
https://www.sciencedirect.com/science/article/pii/S096098221300136X#bib13
https://geomaps.wr.usgs.gov/parks/province/appalach.html
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https://www.lrl.usace.army.mil/Missions/Civil-Works/Recreation/Lakes/Caesar-Creek-Lake/
A Sea without Fish: Life in the Ordovician Sea of the Cincinnati Region:
https://www.nationalgeographic.com/science/prehistoric-world/ordovician/
http://www.ohiohistorycentral.org/w/Bryozoan_Fossils
https://samnoblemuseum.ou.edu/common-fossils-of-oklahoma/invertebrate-fossils/graptolites/
https://www.britannica.com/animal/graptolite
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http://isgs.illinois.edu/outreach/geology-resources/cephalopods
https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0007262&type=printable
https://pubs.usgs.gov/pp/1066p/report.pdf (page 78)
Fundamentals of Invertebrate Palaeontology: Macrofossils (Page 82)
https://www.researchgate.net/profile/Kenneth_De_Baets/publication/267268188_Normal_giants_Temporal_and_latitudinal_shifts_of_Palaeozoic_marine_invertebrate_gigantism_and_global_change/links/59ec4628a6fdccef8b0c6f1e/Normal-giants-Temporal-and-latitudinal-shifts-of-Palaeozoic-marine-invertebrate-gigantism-and-global-change.pdf
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https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4648279/
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http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.546.2076&rep=rep1&type=pdf
https://ocean.si.edu/ocean-life/invertebrates/cephalopods
https://oceanservice.noaa.gov/facts/glacial-adjustment.html

Image Sources:
https://commons.wikimedia.org/wiki/File:Caesar_Creek_Lake_from_spillway.jpg
https://commons.wikimedia.org/wiki/File:Caesars_creek-kmf.JPG
https://commons.wikimedia.org/wiki/File:LibertyFormationSlab092313.jpg
https://commons.wikimedia.org/wiki/File:Graptolites-EncBrit.jpg
https://commons.wikimedia.org/wiki/File:Haeckel_Bryozoa.jpg
https://commons.wikimedia.org/wiki/File:Haeckel_Crinoidea.jpg
https://commons.wikimedia.org/wiki/File:Haeckel_Blastoidea.jpg
https://commons.wikimedia.org/wiki/File:Haeckel_Asteridea.jpg
https://bit.ly/2Wvl6eP
https://commons.wikimedia.org/wiki/File:Taconic_orogeny.png
https://commons.wikimedia.org/wiki/File:ROM28084_Cryptograptus_(1).jpg
https://commons.wikimedia.org/wiki/File:Ostracoderm_digital_recreation..jpg
https://commons.wikimedia.org/wiki/File:Promissum_NT_small.jpg
https://commons.wikimedia.org/wiki/File:Eastern_North_American_Paleogeograpy_Middle_Devonian.png
https://commons.wikimedia.org/wiki/File:Nmnh_fg09.jpg
https://commons.wikimedia.org/wiki/File:Trilobite_tracks_at_World_Museum_Liverpool.JPG
https://commons.wikimedia.org/wiki/File:Cheirurus_ingricus_-_trilobite_-_Smithsonian_Museum_of_Natural_History_-_2012-05-17.jpg
https://commons.wikimedia.org/wiki/File:Orthoceras_BW.jpg
https://bit.ly/2KjSWNk
https://bit.ly/2jqm9Wd
https://bit.ly/295q7hx
https://commons.wikimedia.org/wiki/File:Cephalaspis_species.jpg
https://commons.wikimedia.org/wiki/File:Astraspis_desiderata.jpg
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