geology

Home » Fossils » Green River Formation Fossils » Green River Fossil Plants

Green River Fossil Plants


Introduction



Abundant plants grew on broad swampy areas that developed around the margins of the intermountain lakes of the Green River Formation. These plants were often preserved in the fine-grained limestones, marls and oil shales of the lakes or in the clastic rocks associated with the swamps. Photos by the National Park Service - Fossil Butte National Monument.

More Fossils!     Plants,   Animals,   Insects,   Fish

Green River fossil leaf
Over 300 fossil plants have been discovered in the Fossil Lake deposits.


Green River fossil flower
The detailed preservation of this flower is due, in part, to the fine-grained nature of the limestone matrix it is found in.


Green River fossil leaf
Plants are key to understanding past climates. If a population of 25 or more different shaped leaves are collected from a locality, paleontologists use a technique called leaf-margin analysis to estimate temperature and rainfall.


Green River fossil palm
The presence of palm fossils indicate a much warmer and wetter climate 50 million years ago, probably similar to Florida's climate today.




Find it on Geology.com




More from Geology.com


Siltstone
Siltstone is a sedimentary rock composed mainly of silt-sized particles.
Gems from Space
Gems from Space A number of materials from space have been used as attractive gems.
Geology of Pluto
Geology of Pluto: NASA finds craters, nitrogen ice flows, mountains, and possible dunes.
Chalcopyrite
Chalcopyrite - The most important ore of copper for over five thousand years.
Coal
Coal Through a Microscope: Coal is more than a black rock. It's THE most interesting rock.
Ammolite
Ammolite is a fossil and a gemstone. It is shell material from fossil ammonites.
Landslides
Landslides - A USGS fact sheet about landslides and events that trigger them.
Frac Sand
Frac Sand: The amount of frac sand produced in the USA is up by over 300% since 2009.


Green River fossil leaf
Two hundred and seventy six leaves, seeds and flowers are known from the Fossil Lake deposits. Fossil plants are key in determining the climate of past environments. National Park Service photo.




Green River fossil plant
Fossilized plants are more difficult to identify than living plants because their parts often become separated before they are preserved. The plant that produced this flower may be impossible to identify because it is not attached to the rest of the plant. National Park Service photo.


Green River fossil leaf
Fossilized plants are often difficult to identify because their parts, stem, roots, leaves, and fruiting structures are often not attached. National Park Service photo.


What is Geology?
East Africa Rift
Mount Rainier Volcanic Hazards
Blood Diamonds
Vesuvius
Rock Type Photo Gallery
What is a Debris Flow?
Diamonds Don't Form From Coal



© 2005-2016 Geology.com. All Rights Reserved.
Images, code, and content on this website are property of Geology.com and are protected by copyright law.
Geology.com does not grant permission for any use, republication, or redistribution.
Images, code and content owned by others are marked on the pages where they appear.