Productid
Fossil
Also called Productus and Gigantoproductus
About it
Brachiopods with one deeply bowl-shaped valve, a flat or hollow lid, and spines or spine bases. Gigantoproductus, up to about 30 centimetres wide, fills Carboniferous limestones of England; silicified Permian ones come from Texas.
- Type
- Fossil (brachiopod)
- Group
- Brachiopod
- Colours
- grey, brown, cream, white
- Transparency
- opaque
- Periods
- Carboniferous, Permian
Typical values: real specimens vary. For more, see mindat.org.