The Teylers Museum has a holotype specimen Atoposaurus oberndorfi that was bought by curator J.G.S. van Breda in 1863 from Adam August Krantz (1809-1872), dealer in minerals in Bonn from 1850 onwards.
The street is lined with rijksmonuments, most notably the Waag, a former weighing house and landmark on the Spaarne, and the fundatiehuis, former home of Pieter Teyler van der Hulst and front door of the museum founded in his name from 1778 until 1865.
The collection of Teylers Museum is most famous for its extensive collection of old master's prints and drawings, including 25 works by Michelangelo - among them preliminary studies for the fresco’s on the ceiling of the Sistine Chapel - and important works by Raphael, Guercino, and Claude Lorrain.
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Its fossil, holotype BMNH 42997 (now NHM R 42997), a part of a right femur, 312 mm long, was found in the Netherlands near Maastricht, and originally described as a new species of Megalosaurus in 1883 by Harry Seeley: M. bredai, honouring the late Dutch biologist and geologist Jacob Gijsbertus Samuël van Breda, a director of the Teylers Museum, who had collected the fossil at some time between 1820 and 1860 from the chalkstone quarry at the St Pietersberg.
The Teylers astronomical observatory (Dutch: Teylers Sterrenwacht) is an astronomical observatory built in 1784 on the roof of the Oval Room of the Teylers Museum in Haarlem.