Fossil Type: Marine Invertebrate
Phylum: End Brachiopods
Era: Paleozoic
Geological Period: Cambrian – Permian
Formation: Approximately 500 million years ago
Extinction: Approximately 280 million years ago
Fossil Type: Marine Invertebrate
Phylum: Echinoderms
Era: Paleozoic Geological
Period: Ordovician
Formation: Approximately 450 million years ago
Extinction: Some of them are still extant today in the present era
Fossil Type: Marine Invertebrate
Phylum: Hemichordates
Era: Paleozoic Geological
Period: Ordovician
Formation: Approximately 400 million years ago
Extinction: Some of them are still extant today in the present era
Fossil Type: Marine Invertebrate
Phylum: Brachiopods
Era: Paleozoic Geological
Period: Cambrian
Formation: Approximately 500 million years ago
Extinction: Some of them are still extant today in the present era
Fossil Type: Marine Invertebrate
Phylum: Bryozoans
Era: Paleozoic Geological
Period: Ordovician – Present Era
Formation: Approximately 450 million years ago
Extinction: They are still extant in the present era
Fossil Type: Marine Invertebrate
Phylum: Echinoderms
Class: Crinoids
Era: Paleozoic
Geological Period: Ordovician – Present Era
Formation: Approximately 450 million years ago
Extinction: They are still extant in the present era
