Oligocene echinoids are rare, which makes important this material from three quarries in North Carolina. Three species occur in the state quarry at Pollocksville: <i>Psammechinus carolinensis</i>, new species, <i>Maretia ...
Biometric analyses of well-localized specimens of the trilobite <i>Dikelocephalus</i> from the St. Lawrence Formation (Upper Cambrian), northern Mississippi Valley, suggest that all specimens belong to a single, highly ...
The church of San Petronio in Bologna was one of the most important centers for the performance of instrumental music in the decades around 1700. The unique architecture of San Petronio, originally designed to be the largest ...