Aims Community College Hosted Fossil Day Event
The Greeley campus featured displays of rare prehistoric fossils for National Fossil Day celebrations.
Updated on Oct. 14, 2026 in Geology

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Aims Community College hosted a National Fossil Day event at its Allied Health and Sciences Building on October 8, 2026. Paleontologist John Colt Johnson led the presentation, which showcased an Archaeotherium fossil to the public.
Why it matters
The event highlighted regional paleontological history, including the importance of preserving fossils and adhering to laws regarding their collection. It also provided a local connection to Colorado's prehistoric past, featuring remains found in northern Weld County.
The event featured an Archaeotherium fossil display and noted that Colorado's state fossil, the Stegosaurus, lived in the region approximately 150 million years ago. It remains illegal to collect vertebrate fossils without a formal permit.
The players
John Colt Johnson
He is a paleontologist who led the fossil exhibition and educational presentation at Aims Community College.
Aims Community College
This is a public community college based in Greeley that serves northern Colorado.
National Park Service
This federal agency manages national parks and co-founded the National Fossil Day initiative.
American Geological Institute
This nonprofit federation represents geoscientists and co-founded National Fossil Day.
The details
Attendees in Greeley viewed significant specimens including a Triceratops skull that was discovered in northern Weld County in 1982 and returned to the county in April 2023. John Colt Johnson led the educational effort to bridge the gap between regional discoveries and general scientific knowledge.
Timeline
1982: A Triceratops skull was discovered in northern Weld County.
2010: National Fossil Day was established by the National Park Service and American Geological Institute.
April 2023: The Weld County Triceratops skull was returned to the area.
October 8, 2026: Aims Community College hosted its fossil-themed event.
October 14, 2026: The official date of National Fossil Day.
The Big Picture
The establishment of National Fossil Day provides a framework for how local institutions engage the public with regional paleontology. The Aims Community College event follows the precedent established by the national program to increase public awareness of geological history.
Residents can better understand the legal requirements for fossil collection, specifically that removing vertebrate specimens without a permit remains illegal. This knowledge helps protect local archaeological and geological sites from unauthorized disturbance.
The takeaway
Understanding Colorado's deep geological past connects the community to the natural history of the region. Residents are encouraged to report fossil discoveries to local experts rather than attempting private excavation.
Further reading
Learn more about local findings and research in the Geology section.
Source note: This article includes information reported by Greeley Tribune.
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