Elrathia
Fossil
Also called Elrathia kingii
About it
Small, flat Cambrian trilobite, rarely over 4 centimetres, with 13 body segments and a tiny tail, dark against grey shale. Quarried by the thousand from the Wheeler Shale of Utah's House Range; often the first trilobite people own.
- Type
- Fossil (arthropod)
- Group
- Trilobite (arthropod)
- Colours
- dark grey, black, brown, on grey or tan shale
- Transparency
- opaque
- Periods
- Cambrian
Typical values: real specimens vary. For more, see mindat.org.