Yellowstone National Park, Agnostid trilobite
Summary
YELL-165705: A small, Agnostid trilobite (YELL-165705) head is shown here. How did these little arthropods survive 500 million years ago? From their lack of eyes and poorly suited swimming body, scientists infer that they were most likely pelagic and floated around the open ocean. This particular Agnostid trilobite is over 500 million years old and was collected from the Wolsey Shale from Mount Holmes in Yellowstone National Park. Scientists use clues from the trilobite’s physical features and the type of rock they were fossilized in, to infer the paleo-environment of the area, which at this time would have been described as a moderate to deep-water environment.;
Megan Norr;
March 2016;
Catalog #20798d;
Original #USNM_165705
- National Park Service - Gallery Item Display
- National Park Service - Gallery Item Display
- Gallery Item Display - National Park Service
- Gallery Item Display - National Park Service
- Gallery Item Display - National Park Service
- 6 Trilobites, Million years Images: PICRYL - Collections - GetArchive
- 12 Trilobites Images: PICRYL - Public Domain Media Search Engine ...
- File:YELL 165705 Agnostid trilobite (30513612801).jpg - Wikipedia
- 19 Megan norr Images: PICRYL - Public Domain Media Search ...
- 3 Wolsey Shale Image: PICRYL - Collections - GetArchive
Tags
yellowstone national park
fossils
trilobites
paleontology
20798 d
yell 165705
geology
agnostid trilobite
million years
scientists use clues
scientists
wolsey shale
mount holmes
megan norr
national parks gallery
high resolution
wyoming
stone
Date
1990 - 2020
Location
Source
National Parks Gallery
Link
Copyright info
Public Domain Dedication