Frederick L. B. Bedwell, Crooked Reach, Straits of Magellan, 1869. Watercolour, 17.5 x 25 cm.
Vintage red sea fan print.
Laurie Andrews, Dicksonia Antarctica, 2008. Watercolour.
Ammonite by dbhe
Egg by dbhe
Etienne-Jules Marey, Le Vol des Oiseaux (The Flights of Birds), c. 1882-1885. Silhouettes of different birds and bats, obtained with photographic gun.
premierepage:

http://www2.biusante.parisdescartes.fr
Vincent van Gogh, Allotments on Montmartre, 1887. Oil on canvas. Stedelijk Museum, Amsterdam.
Albrecht Dürer, A Quarry, 1495. Watercolour on paper.
thisblueboy:

Claude Lorrain, Pastoral Landscape with Tall Trees, circa 1645-50
Agostino Carracci (1557-1602), Landscape. Pen and black ink, with traces of iron-gall ink on paper, 23 x 32 cm. Private collection.