AN AMERICAN SILURIAN SCORPION

Scorpion Phylogeography in the North American Aridlands

........................................................................................................................... iii ACKNOWLEDGEMENTS ........................................................................................................ v LIST OF TABLES .................................................................................................................... ix LIST OF FI...

The State of Silurian

The geological sciences demand close international cooperation as wel as a rigorous and clearly understood language of words. Nowhere is this more keenly felt than in stratigraphy where, despite the luxury of long philosophical discussions on rocks versus time, many feel a sense of urgency about attempts to achieve a standard global chronostratigraphy. The now wel-known pioneer work of the inte...

A Silurian 'marrellomorph' arthropod.

Xylokorys chledophilia, a new arthropod with three-dimensionally preserved soft tissues, is described from the Herefordshire (Silurian) Lagerstätte of England. The head and trunk are covered by a relatively featureless ovoid carapace, which comprises a domed central part and a flange-like border. The head bears five pairs of appendages. The first is uniramous, with dorsal and ventral projection...

Insulin as an Effective Drug in Scorpion Venom Poisoning

Brood care in a Silurian ostracod.

An exceptionally preserved new ostracod crustacean from the Silurian of Herefordshire, England, preserves eggs and possible juveniles within its carapace, providing an unequivocal and unique view of parental brood care in the invertebrate fossil record. The female fossil is assigned to a new family and superfamily of myodocopids based on its soft-part anatomy. It demonstrates a remarkably conse...