| Different perspectives of a brachiopod from the Middle Ordovician Antelope Valley Limestone, called scientifically Ingria cloudi. Actual size is 10 millimeters across. Scanned from a USGS professional paper, a Public Domain document. |
| Different perspectives of a brachiopod from the Middle Ordovician Antelope Valley Limestone, called scientifically Ingria cloudi. Actual size is 10 millimeters across. Scanned from a USGS professional paper, a Public Domain document. |