Knowra Solnhofen limestone Solnhofen limestone Solnhofen limestone is a Late Jurassic lithographic limestone deposit in Bavaria, Germany, renowned for fine-grained stone and exceptionally preserved fossils.
Archaeopteryx : An extinct feathered animal from the Late Jurassic, known from fossils that combine birdlike and dinosaurian features. Solnhofen yielded the first recognized specimen, making it central to debates about bird evolution.
Lagerstätte : A fossil deposit that preserves organisms with exceptional abundance, diversity, or detail. Solnhofen is a classic example of a deposit whose preservation exceeds ordinary fossil assemblages.
Late Jurassic : The final epoch of the Jurassic Period, spanning roughly 163 to 145 million years ago. Solnhofen’s limestone formed during this interval, near the Jurassic–Cretaceous transition.
Lithography : A printing process in which ink adheres to a treated flat surface while water repels it from other areas. Solnhofen limestone became a standard surface for this printing method.
History of paleontology : The development of fossil study into a scientific discipline, from early collecting to modern evolutionary research. Solnhofen discoveries helped establish the scientific importance of exceptionally preserved fossils.
Rhamphorhynchus : A long-tailed pterosaur genus from the Late Jurassic, with fossils known from Europe. Solnhofen specimens preserve its wing membranes and long tail in exceptional detail.
Lithographic limestone : Fine-grained, dense limestone that can hold a smooth surface suitable for lithographic printing. The rock’s unusually fine texture made it valuable for printing and helped retain fossil detail.
Franconian Alb : A highland region in Bavaria, Germany, formed largely from Jurassic sedimentary rocks. The Solnhofen quarries lie within this limestone-rich landscape.
Alois Senefelder : A German actor and inventor who developed lithography in the late eighteenth century. He recognized that Solnhofen limestone could serve as a practical lithographic printing stone.
Charles Darwin : An English naturalist who developed the theory of evolution by natural selection. The discovery of Archaeopteryx after Darwin’s major work became a prominent test case for evolutionary debates.
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