Harvestmen (Arachnida: Opiliones) are a common and widespread group, the most familiar of which are recognizable by their small, rounded bodies and long, slender legs ('daddy long-legs'). Their fossil ...
The Caledonian Orogeny, active from the late Cambrian through the early Devonian, records the progressive closure of the Iapetus Ocean and the collision of Laurentia, Baltica and Avalonia.
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