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UNMINERALIZED FOSSIL BACTERIA.

Unmineralized bacterial cells, mostly Micrococcus sp., but including also Streptococcus sp. and Actinomyces sp., were found in enormous numbers in lake beds of the Newark Canyon Formation of Early Cretaceous age, Eureka County, Nevada. The micrococci are black, and have an average diameter about 0.5 micro. Similar black micrococci (0.4 to 0.7 micro) were found in profusion in the bottom mud of Green Lake, New York. About 80 percent of this mud consists of minute idiomorphic calcite crystals and about 20 percent of these contain enormous numbers of the black micrococci. It is suggested that the Early Cretaceous bacterial cells owe their preservation to occlusion in calcite crystals that grew in a black, bacterial mud in a meromictic lake in which part of the Newark Canyon Formation accumulated.

Actinomyces↗

Miocene fossil hominids and the chimp-human clade.

Miocene hominoids from Europe are among the earliest members of the great ape and human clade (the Hominidae). One of these forms, represented by well-preserved cranial remains from Rudabánya, Hungary, sheds new light on the question of the evolutionary relations among living hominids. This new evidence supports the view that humans have a specific evolutionary relation with chimpanzees, to the exclusion of all other apes.

Animals↗

Dick Mol. 'Sir Mammoth' leads charge to uncover Ice Age fossils.

Dick Mol may be an amateur, but he's had more success than most professionals in his chosen field of paleontology. As scientific coordinator of a major expedition that's gathering the remains of woolly mammoths and other Pleistocene fauna from Siberia's Taimyr Peninsula, this 45-year-old customs officer at Amsterdam airport has been featured in a documentary on the Discovery Channel and in a sequel to appear next March. The work has brought him international recognition for his studies on quaternary paleontology, the study of the Pleistocene and today's Holocene Epochs.

Animals↗