The American black bear lived during the same period as short-faced bears (Arctodus simus and A. pristinus) and the Florida spectacled bear (Tremarctos floridanus). These Tremarctine bears evolved from bears that had emigrated from Asia to North America 7â8 ma.
A plenum space is a part of a building that can facilitate air circulation for heating and air conditioning systems, by providing pathways for either heated/conditioned or return airflows, usually at greater than atmospheric pressure.
The SuperionÂ® InterSpinous Spacer (Superion Spacer) is a small H-shaped spinal implant system for the treatment of moderate lumbar spinal stenosis implant. The device fits between two adjacent bones (spinous processes) in the lower back. This limits movement (extension) at the level where the device is placed. The Superion Spacer is made of titanium alloy. Features of the Superion System: One piece, expandable implant. Minimally invasive midline approach. Motion preserving. Tissue sparing and fully reversible.