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Mounted skeleton of the highly derived California mosasaur Plotosaurus bennisoni (CIT 2750) on display at the Natural History Museum of Los Angeles County

Mounted skeleton of Plotosaurus from the Los Angeles County Natural History Museum; see the original image

Juvenile Gorgosaurus TMP 2009.12.14 preserving stomach contents. Photographs of specimen in (A) right lateral view and (B) left anterolateral view. (C) Interpretive illustration of specimen in right lateral view. Skeleton consists of a nearly complete skull, the left side of the body and limbs, and a nearly complete pelvis. Red rectangle delineates location of stomach contents. (D) Histological photomicrograph of tibia showing the presence of five lines of arrested growths and two annuli (marked by asterisks), indicating that the individual was between 5 and 7 years old. Scale bars, 50 cm (A) to (C) and 1 mm (D).

The Naturmuseum Senckenberg in Frankfurt is the second largest museum of natural history in Germany. It is particularly popular with children, who enjoy the extensive collection of dinosaur skeletons: Senckenberg boasts the largest exhibition of large dinosaurs in Europe. One particular treasure is a dinosaur fossil with unique, preserved scaled skin. The museum contains the world's largest and most diverse collection of stuffed birds with about 2000 specimens.

Anhanguera skeleton, North American Museum of Ancient Life.

Two Thescelosaurus skeletons, North American Museum of Ancient Life.

Shown is a drawing from Williston (1898) that shows the skeletons of three common species of mosasaurs from Kansas; Clidastes propython, Platecarpus tympaniticus and Tylosaurus proriger. Although these three species are shown about the same size in the drawing, in life, Clidastes was the smallest (about 12-15 feet); Platecarpus was the next largest (about 24 feet) and Tylosaurus was the largest (30 plus feet):

Unidentified Platecarpus sp. partial skeleton at the Natural History Museum in London, England.

Unidentified Platecarpus sp. partial skeleton at the Natural History Museum in London, England.

Ichthyosaur Skeleton, Platypterygius longmani, in The Museum and Art Gallery of the Northern Territory at Darwin.

AMNH FR 192. A complete skeleton of Clidastes liodontus on display at the American Museum of Natural History.

Euryapteryx gravis restored based on skeletons and preserved moa feathers.

Skeleton of Tehuelchesaurus at the Museo Paleontológico Egidio Feruglio in Trelew, Argentina

Skeleton of Bagualia at the Museo Paleontológico Egidio Feruglio in Trelew, Argentina

Saltopus elginensis holotype elements PV R 3915. Part and counterpart of skeleton in small slab, and associated fragments. Moulds and casts of part and counterpart.

The holotype of Dianmeisaurus mutaensis (HFUT MT-21-08-001). (A) the skeleton in dorsal view; (B) the counterpart of (A) (natural mold). Scale bars equal 1 cm.