Paper No. 2
Presentation Time: 9:15 AM
THE CARBONIFEROUS WHIP SPIDER GRAEOPHONUS (ARACHNIDA: AMBLYPYGI): NEW DATA ON PEDIPALP EVOLUTION
Two specimens of the Carboniferous whip spider Graeophonus (Order Amblypygi) are presented as high-resolution microCT scan reconstructions. The fossils are preserved within siderite nodules from the Middle Coal Measures of Coseley, Staffordshire, UK. The new 3D reconstructions of Graeophonus yield additional morphological information not revealed by surface examinations. Of particular interest is the form of the pedipalps, which are revealed to have a more complex armature. Compared to most modern species, the armature of the pedipalps belonging to Graeophonus is relatively meager, but it supports previous assertions of a close relationship between Graeophonus and the most primitive living species, Paracharon.