Dicranurus
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Dicranurus is a genus of Lower to Middle Devonian odontopleurid trilobites that lived in a shallow sea that lay between Euramerica and Gondwana, corresponding to modern-day Oklahoma and New York, and
Dicranurus hamatus elegantus, Early Devonian, Haragan Formation, Coal County, Oklahoma, USA Houston Museum of Natural Science DSC01680
Dicranurus monstrosus
Laurasia
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Laurasia was the more northern of two large landmasses that formed part of the Pangaea supercontinent from around 335 to 175 million years ago, the other being Gondwana. It separated from Gondwana 215
Dicranurus
…dikranon', a pitchfork, and 'oura', tail) is a genus of Lower to Middle Devonian odontopleurid trilobites that lived in a shallow sea that lay between Euramerica and Gondwana, corresponding to modern-day Oklahoma and New York, and Morocco, respectively. As such, their fossils are found in New York, Oklahoma, and…
Laurasia (centre) and Gondwana (bottom) as part of Pangaea 200 Mya (Early Jurassic)
Rodinia 900 Mya centred on Laurentia with Baltica and Amazonia on its southern margin. View centred on 30°S,130°E.
Laurussia (left) during the closure of the Iapetus Ocean 430 Mya (middle Silurian). View centred on 0°, 60° W.
Pangaea formed during the closure of the Rheic Ocean 330 Mya (early Carboniferous). View centred on 30°S, 30°E.