Wikimedi'Òc

RusophycusOrdovician.jpg - Wilson44691

Pricyclopyge longicephala pygidium CRF.jpg - Dwergenpaartje

Cyclopigid cephalon lateral CRF.jpg - Dwergenpaartje

Cyclopyge Morocco cephalon lateral CRF.jpg - Dwergenpaartje

Ampyx linleyensis with straw.jpg - Dwergenpaartje

Ampyx linleyensis.jpg - Dwergenpaartje

Ampyx priscus CRF.jpg - Dwergenpaartje

Pliomerops escoti (Bergeron 1895) Ordovicien St Chinian.jpg - Archaeodontosaurus

Pliomerops escoti (Bergeron 1895) St Chinian2.jpg - Archaeodontosaurus

Ampyx priscus (trilobite arthropods), linear cluster – 480 mya, Morocco.png - A11w1ss3nd

Trilobite in pyritic black shale (Jigunsan Formation, Middle Ordovician; Seokgaejae section, Gangwon Province, South Korea) 5.jpg - Ser Amantio di Nicolao

Trilobite in pyritic black shale (Jigunsan Formation, Middle Ordovician; Seokgaejae section, Gangwon Province, South Korea) 6.jpg - Ser Amantio di Nicolao

Trilobite in pyritic black shale (Jigunsan Formation, Middle Ordovician; Seokgaejae section, Gangwon Province, South Korea) 3.jpg - Ser Amantio di Nicolao

Trilobite in pyritic black shale (Jigunsan Formation, Middle Ordovician; Seokgaejae section, Gangwon Province, South Korea) 2.jpg - Ser Amantio di Nicolao

Trilobites in pyritic black shale (Jigunsan Formation, Middle Ordovician; Seokgaejae section, Gangwon Province, South Korea) 4.jpg - Ser Amantio di Nicolao

Trilobites in pyritic black shale (Jigunsan Formation, Middle Ordovician; Seokgaejae section, Gangwon Province, South Korea) 1.jpg - Ser Amantio di Nicolao

Damghan Ampyx ghobadipour fossil from Lashkark Formation, Ordovician, Damghan, Iran.jpg - Amir Ali Iranshahi 3

Asaphellus fossil from Mila formation, Ordovician period, Damghan, Iran 02.jpg - Amir Ali Iranshahi 3

Asaphellus fossil from Mila formation, Ordovician period, Damghan, Iran 01.jpg - Amir Ali Iranshahi 3

Ordovician period trilobite impression fossil near Jägala waterfall.jpg - ErikAbner

Hintzeia Pogonip Group Fossil Mountain Utah 001.jpg - Paul H.