This article is about the bacterium. For the disease, see Salmonellosis. Salmonella /ËsÃ¦lmÉËnÉlÉ/ is a genus of rod-shaped (bacillus) gram-negative bacteria of the Enterobacteriaceae family. The two species of Salmonella are Salmonella enterica and Salmonella bongori. Salmonella enterica is the type species and is further divided into six subspecies that include over 2,500 serotypes. S. enterica subspecies are found worldwide in all warm-blooded animals, and in the environment.
Major events in the park's geologic history took place during the Paleozoic, Mesozoic and Cenozoic Eras. Read below to discover the specifics of these event. The oldest geologic events are discussed at the top of the page and more recent history is discussed at the bottom.owever, through techniques of geologic interpretation, scientists have constructed a timeline of geologic events that affected the Valley Forge area during the Paleozoic, Mesozoic, and Cenozoic eras. The geologic time scale above separates the geologic history of the Earth into major Eras and Periods.
A geological basin is a large low-lying area. It is often below sea level. Geological basins are one of the two most common places inland which collect sediment (the other is lakes).The type of rocks which form there tell about the palaeo climate of the continent. The geology is of interest to oil prospectors, hydrologists and palaeontologists.eological basins are one of the two most common places inland which collect sediment (the other is lakes). The type of rocks which form there tell about the palaeo climate of the continent.