Fossil Atlas glossary
A fossil locality is a specific place where fossils have been found, recorded with a site name, coordinates when available, and stratigraphic context. Every pin on a Fossil Atlas discovery map represents a modern locality tied to a fossil record.
The concept
The simplest way to understand the difference: the Hell Creek Formation is a rock body exposed across Montana and the Dakotas. A Hell Creek fossil locality is a specific spot, such as a hillside or quarry where a fossil was collected. One formation can contain many localities.
In practice
Field paleontologists often assign locality numbers to connect fossils with coordinates, field notes, rock layers, and dates of discovery. Back in the lab, that locality information follows the specimen and helps future researchers understand its context.
On Fossil Atlas
Every pin on a Fossil Atlas map represents a modern place connected to a fossil record. The maps are labeled as modern discovery maps because the pins show where fossils were found today, not where the animals lived in the ancient world.
FAQ
A fossil locality is a specific geographic place: a point or small area where one or more fossils have been found. A fossil formation is a geological unit, a body of rock with consistent characteristics that may extend across a broad region. A single formation can contain many fossil localities.
Modern paleontologists record fossil localities using GPS coordinates, field notes, photographs, and stratigraphic measurements. Older collections may be less precise, using descriptions such as near a town or ranch rather than exact coordinates. Museum databases can standardize this information, but the precision still depends on the original record.
A fossil without locality data loses much of its scientific value. Without knowing where a specimen was found, paleontologists may not be able to determine its geological age, stratigraphic position, or geographic context. Fossil Atlas therefore treats source context and confidence notes as part of the map.
A type locality is the place where the defining specimen of a fossil species, or the defining exposure of a geological formation, was collected or described. Type localities matter because they anchor names to real places and rocks.
Sources
Source links show where Fossil Atlas gets record and curation context. They do not make this page an exhaustive scientific bibliography.
Caveat
This page provides a general explanation of fossil localities. Not all records in Fossil Atlas have the same level of precision; older records in particular may lack exact GPS coordinates.