Concurrent range zone and partial range zone (ISG, Figure b and c): The interval between the documented lowest occurrence of one taxon and the documented highest occurrence of another taxon. Concurrent range zone is used when the fossil occurrence results in stratigraphic overlap of the taxa (Figure b).When such occurrences do not result in stratigraphic overlap, the interval zone may be called a partial range zone (Figure c).3. The zone, or biozone, is the fundamental unit of biostratigraphic classification. A zone may be divided into subzones and/or grouped into superzones. Each biozone is given a unique name, which is compound and designates the kind of biozone.
Other common causes of shortness of breath were considered, including: Bacterial pneumonia: However, his lungs were clear with no consolidation on X ray, and the duration of his symptoms (2 months) was not consistent with the presentation of a typical bacterial pneumonia.
The three main causes of pseudo-dyspnea or the false shortness of breath are a) esophagitis, b) anxiety, and c) panic. a) Esophagitis, or inflammation of the esophagus, is mostly caused by acid reflux, which is the backlash of stomach acid into the esophagus.