Marker Logo HMdb.org THE HISTORICAL
MARKER DATABASE
“Bite-Size Bits of Local, National, and Global History”
“Bite-Size Bits of Local, National, and Global History”
Holbrook in Navajo County, Arizona — The American Mountains (Southwest)
 

Triassic Landscape

 
 
Triassic Landscape Marker image. Click for full size.
By Denise Boose, September 2, 2013
1. Triassic Landscape Marker
Photo Caption:
In this artistís rendering of a Triassic scene, fallen trees and silt cover a flooded plain – conditions that could produce petrified wood. In 225 million years the slow, complex process called continental drift has moved the land from its most tropical Triassic location near the equator to its present-day location.
Inscription. The dry plateau lands of this region today are far different from the tree-littered floodplains of 225 million years ago during the geologic period called the Triassic. Imagine a forested Triassic land where crocodile-like phytosaurs inhabited the shores, and other carnivorous reptiles hunted on land. Visualize stormy floodwaters carrying Triassic trees here to the floodplains, where, over time, the trees would petrify.

What happened to the animals of the Triassic? Did their disappearance allow the dinosaurs – which were then just appearing – to ascend to dominance? Through the study of fossils such as those found here, scientists hope to solve the mystery of the Triassic speciesí disappearance and find clues to explain other “mass extinctions” that have occurred through time.

Do not disturb or remove petrified wood or other fossils in Petrified Forest National Park. Leave these traces of our earthís history for future visitors. Please report any theft or vandalism to park staff.
 
Erected by Petrified National Forest Services.
 
Location. 34° 51.834′ N, 109° 47.477′ W. Marker is in Holbrook, Arizona, in Navajo County. Marker can be reached from Petrified Forest Road
Triassic Landscape Marker image. Click for full size.
By Denise Boose, September 2, 2013
2. Triassic Landscape Marker
, on the right when traveling north. Touch for map. Marker is in this post office area: Holbrook AZ 86025, United States of America.
 
Other nearby markers. At least 8 other markers are within 7 miles of this marker, measured as the crow flies. From Wood to Stone (within shouting distance of this marker); Jasper Forest (approx. 2 miles away); Agate Bridge (approx. 2 miles away); Stephen Tyng Mather (approx. 5.4 miles away); Pioneers of Paleontology (approx. 5.7 miles away); Agate House (approx. 5.7 miles away); Newspaper Rock Petroglyphs Archeological District (approx. 6.8 miles away); Newspaper Rock (approx. 6.8 miles away). Touch for a list and map of all markers in Holbrook.
 
Categories. Natural FeaturesNatural ResourcesNotable Places
 
Triassic Landscape Marker image. Click for full size.
By Denise Boose, September 2, 2013
3. Triassic Landscape Marker
Petrified Wood image. Click for full size.
By Denise Boose, September 2, 2013
4. Petrified Wood
Petrified Wood image. Click for full size.
By Denise Boose, September 2, 2013
5. Petrified Wood
View of the Flood Plains image. Click for full size.
By Denise Boose, September 2, 2013
6. View of the Flood Plains
Petrified Wood image. Click for full size.
By Denise Boose, September 2, 2013
7. Petrified Wood
The Crystal Forest image. Click for full size.
By Denise Boose, September 2, 2013
8. The Crystal Forest
Step into the Crystal Forest and enter a mysterious world of ancient trees turned to stone. The brillantly colored remants of an earlier geologic age invite you to visualize a changing world. Thoughtless visitors have removed most of the crystals that gave Crystal Forest its name. Please save what's left for future visitors, and report any theft or vandalism to park staff. Crystal Forest Loop Trail (.75 mile/1.2 km) Walk the paved Crystal Forest Loop Trail to see petrified logs renowned for their crystals.
 
 
Credits. This page was last revised on June 16, 2016. This page originally submitted on September 28, 2013, by Denise Boose of Tehachapi, California. This page has been viewed 434 times since then and 45 times this year. Photos:   1, 2, 3, 4, 5, 6, 7, 8. submitted on September 28, 2013, by Denise Boose of Tehachapi, California. • Syd Whittle was the editor who published this page.
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