Vertebrate fossils consist of the mineralized remains or impressions of ancient animals with backbones, such as dinosaurs, fish, or mammals. Collectors should look for the characteristic porous internal texture of bone or the enamel sheen on teeth, often found in sedimentary layers where rapid burial occurred.
Is this vertebrate fossils?
5-step field checkRun through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.
- 1Test the hardnessTry to scratch vertebrate fossils with a known reference. Vertebrate Fossils sits at Mohs 3-6 — softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Vertebrate Fossils leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Vertebrate Fossils typically shows a dull luster.
- 4Match the color rangeCompare against the expected color range: brown, tan, black, gray, white.
- 5Look at form & habitTypical habit: pseudomorphs of bone or tooth structure.
Often found alongside vertebrate fossils
Minerals reported to co-occur with vertebrate fossils. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Mohs hardness
- 3-6
- Density
- 2.0-3.0 g/cm³
- Streak
- White
- Luster
- Dull
- Transparency
- Opaque
- Crystal habit
- Pseudomorphs of Bone or Tooth Structure
- Cleavage
- None
- Rarity
- Common
- Uses
- Collector, Scientific Research, Decorative
- Host rock
- Sedimentary Rocks
- Typical price
- $10-1,000+ per specimen depending on quality and species
Where rockhounds find vertebrate fossils
1 mapped spotsClassic worldwide localities
- Morrison Formation (USA)
- Hell Creek Formation (USA)
- Solnhofen Limestone (Germany)
- Gobi Desert (Mongolia)
- Badlands (USA)
Field-hunting tip
Look in sedimentary rocks country — that is the host setting where vertebrate fossils typically forms. If you start seeing calcite, quartz, chalcedony in float, you are in the right ground. Field specimens usually show a pseudomorphs of bone or tooth structure habit, so train your eye for that shape before scanning the outcrop. In the U.S., the densest reported localities are in Nebraska — start trip planning there.
Common questions
How do you identify vertebrate fossils?+
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Can I find vertebrate fossils in the United States?+
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Find vertebrate fossils on the map
RockHoundR shows mapped rockhounding spots, access rules, and lets you log every find.
