EXTINCTIONS - RARE, DETAILED LOWER CAMBRIAN SPONGE FOSSIL - BURGESS SHALE

Extinctions - Very Rare, Detailed Lower Cambrian Sponge Fossil - Burgess Shale

Extinctions - Multiple Plate Of Lower Cambrian Sponges - Burgess Shale - Like

Extinctions - Detailed Lower Cambrian Paedumias Transitans Trilobite Fossil - Cool

Montezumaspis Trilobite Rare Holmiid Lower Cambrian Nevada

Leptomitus Teretiusculus – Chengjiang Biota – Lower Cambrian Sponge Fossil

Extinctions - Rare Detailed Baicalia Stromatolite Fossil - Tasmania - 800 Million Yrs

Extinctions - Rare, Detailed Boxonia Stromatolite Fossil - 800 Million Years Old

Extinctions - Rare, Detailed Pennsylvanian Shark Egg Fossil - Mazon Creek