The Jurassic fossil site in Germany known for Archaeopteryx is Solnhofen. More precisely, the Solnhofen Limestone, or Solnhofen Plattenkalk, is a group of exceptionally fine-grained limestone deposits in Bavaria.
During the Late Jurassic, roughly 150 million years ago, the area consisted of shallow lagoons in an archipelago bordering the Tethys Sea. Oxygen-poor bottom waters and limited scavenging helped preserve delicate remains, including feathers, wings, insects, pterosaurs, marine reptiles, and soft-bodied organisms.
Solnhofen is especially famous because Archaeopteryx fossils were preserved there with remarkable detail. The animal combined feathers and bird-like traits with teeth, claws, and a long bony tail, making it central to discussions of bird evolution.
A common mix-up is Messel Pit, another celebrated German fossil site known for beautifully preserved Eocene mammals and plants. Lyme Regis is famous for Jurassic fossils in England, while Holzmaden is known particularly for marine reptiles and invertebrates.