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Princeton in Gibson County, Indiana — The American Midwest (Great Lakes)
 

Prehistoric Landscape

420 Million Years Ago — 10,000 Years Ago

 
 
Prehistoric Landscape Marker image. Click for full size.
Photographed By Cosmos Mariner, August 23, 2021
1. Prehistoric Landscape Marker
Inscription.  The Princeton you see today is not as it always was. Over billions of years, natural processes have drastically affected the climate, flora & fauna, & even the geographic location of what is now Princeton. Between 420 & 359 million years ago, during the Devonian Period, much of the Midwest was covered by shallow, tropical seas. Coral reefs & shells left by marine life eventually became the Indiana limestone we use in buildings & construction today, one example of which can be seen in limestone trim of the Gibson Co. Courthouse. During the Carboniferous Period (359-299 MYA), the supercontinent Pangaea was forming. Due to continental drift, Princeton's latitude was much farther south than it is today & lied within a tropical zone. The warm climate supported the growth of giant plants, with ferns & mosses the size of trees. Huge dragonflies with 3-foot wingspans buzzed through the tropical forests. After millions of years of heat & pressure, the buried remains of these giant plants were transformed into the coal that is mined in Gibson County today & used to create electricity. About 2.6 MYA, during the Pleistocene Epoch, the last Ice Age began.
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Large mammals such as Mastodons, Saber-toothed cats & giant Ground Sloths, roamed Indiana. We are currently in an interglacial warming period that began about 10,000 years ago. During this period, spruce trees retreated northward, giving way to dense forests of pine & hardwoods. Princeton would still be largely covered by these dense forests today, if not for agriculture-related land clearing. The ice-melt of the glaciers created the Wabash, Patoka & White Rivers & left rich silt deposits in the riverbeds. These rivers & the fertile soil surrounding them have given rise to a successful agricultural industry & have supported the growth & development of Princeton as we know it today.
 
Topics. This historical marker is listed in these topic lists: AgricultureAnimalsPaleontologyWaterways & Vessels.
 
Location. 38° 21.326′ N, 87° 34.214′ W. Marker is in Princeton, Indiana, in Gibson County. Marker is at the intersection of West Broadway Street (Indiana Route 65) and North West Street, on the left when traveling east on West Broadway Street. Marker is located in the heritage plaza at the southeast corner of Downtown Princeton Park. Touch for map. Marker is at or near this postal address: 300 West Broadway Street, Princeton IN 47670, United States of America. Touch for directions.
 
Other nearby markers. At least 8 other markers are within walking distance of this marker. Native Americans (here, next to this marker); Stellar Community
Marker detail: Prehistoric Dragonfly (<i>Meganeura sp.</i>) image. Click for full size.
Photographed By Cosmos Mariner, August 23, 2021
2. Marker detail: Prehistoric Dragonfly (Meganeura sp.)
(here, next to this marker); Patoka Wildlife Refuge (here, next to this marker); Early Settlers (here, next to this marker); Tri-State Tornado (a few steps from this marker); Agriculture (a few steps from this marker); Lyles Station (a few steps from this marker); Prince Town (a few steps from this marker). Touch for a list and map of all markers in Princeton.
 
Related markers. Click here for a list of markers that are related to this marker. Princeton, Indiana
 
Prehistoric Landscape Marker image. Click for full size.
Photographed By Cosmos Mariner, August 23, 2021
3. Prehistoric Landscape Marker
Prehistoric Landscape Marker image. Click for full size.
Photographed By Cosmos Mariner, August 23, 2021
4. Prehistoric Landscape Marker
 
 
Credits. This page was last revised on January 20, 2022. It was originally submitted on January 17, 2022, by Cosmos Mariner of Cape Canaveral, Florida. This page has been viewed 156 times since then and 13 times this year. Photos:   1, 2, 3, 4. submitted on January 17, 2022, by Cosmos Mariner of Cape Canaveral, Florida.

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Apr. 23, 2024