Ornitholestes hermanni (Osborn 1903, 1917, 2m, incomplete skeleton, Late Jurassic) According to Wikipedia, "All published cladistic analyses have shown Ornitholestes to be a coelurosaur as defined by Gauthier. " In the large reptile tree Ornitholestes nests between Compsognathus and Microraptor, yet close to Tianyuraptor in the lineage of Tyrannosaurus. The skeleton shown here was restored based in the AMNH restoration, which may not be accurate with regard to the number of cervicals and dorsals.

Ornithologist Percy Lowe hypothesized in 1944 that Ornitholestes might have borne feathers. As a close relative of Microraptor, Ornitholestes probably had long wing feathers.

Sciurumimus albersdoerferi (Rauhut et al. 2012; Late Jurassic, 150 mya; 60cm) is traditionally considered a basal coelurosaurian theropod, and was originally considered a basal megalosaur, but here nests with Ornitholestes, close to Microraptor.

This specimen has tail feathers growing in a pattern like squirrel tail hair. There is a small egg-like shape between the ischia. The 'furcula' is reduced to two clavicles. A small sternum is present.

Mirischia asymmetrica (Naish, Martill and Frey 2004; SMNK 2349; Early Cretaceous, Santana Formation) is known from an incomplete specimen originally associated with the CN79 specimen of Compsognathus. Here it nests between that specimen and Ornitholestes. The pelvis and femur are shown here.

Choiniere JN, Clark JM, Forster CA and Xu X 2010. A basal coelurosaur (Dinosauria: Theropoda) from the Late Jurassic (Oxfordian) of the Shishugou Formation in Wucaiwan, People's Republic of China. Journal of Vertebrate Paleontology. 30 (6): 1773–1796.

Naish D, Martill DM and Frey E 2004. Ecology, systematics and biogeographical relationships of dinosaurs, including a new theropod from the Santana Formation (?Albian, Early Cretaceous) of Brazil. Historical Biology 16(2–4):57–70.

Osborn HF 1903. Ornitholestes hermanni, a New Compsognathoid
Dinosaur from the Upper Jurassic. Bulletin of the AMNH 19:(12):459-464.

Osborn HF 1917. Skeletal adaptations of Ornitholestes, Struthiomimus, Tyrannosaurus. Bulletin of the AMNH 35 (43) pdf

Rauhut OWM, Foth C, Tischlinger H and Norell MA 2012. Exceptionally preserved juvenile megalosauroid theropod dinosaur with filamentous integument from the Late Jurassic of Germany. Proceedings of the National Academy of Sciences. 109 (29): 11746–11751.

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