The Ediacara biota consisted of enigmatic tubular and frond-shaped, mostly sessile organisms which lived during the Ediacaran Period (c. 635–542 Ma). Trace fossils of these organisms have been found worldwide, and represent the earliest known complex multicellular organisms. The Ediacara biota radiated in an event called the Avalon Explosion, 575 million years ago, after the Earth had thawed from the Cryogenian period's extensive glaciation, and largely disappeared contemporaneous with the rapid appearance of biodiversity known as the Cambrian explosion. Most currently existing body-plans of animals first appeared only in the fossil record of the Cambrian rather than the Ediacaran. For macroorganisms, the Cambrian biota completely replaced the organisms that populated the Ediacaran fossil record. (more...)
... that Fred Tenney(pictured) was described as "one of the best defensive first basemen of all time", while Fred Tenney only played six games at the position?
1955 – Soviet geologists discovered the Mir mine(pictured), the first diamond mine in the USSR and the second largest excavated hole in the world, in Eastern Siberia.
