Microraptoria

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Є
O
S
D
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* †*Graciliraptor*
* †*Hesperonychus*
* †*Microraptor*
* †*Sinornithosaurus*
* **Microraptorini** Senter *et al.*, 2004

**Microraptoria** (Greek, μίκρος, mīkros: "small"; Latin, raptor: "one who seizes") is a clade of paravian theropods known for long feathers on their legs They appeared 125 million years ago in China. Many may have been semi-arboreal gliders. Microraptorians were relatively small; adult specimens of *Microraptor* range between 77–90 centimetres long (2.53–2.95 ft) and weigh up to 1 kilogram (2.2 lb), making them some of the smallest known dinosaurs. The largest, *Hesperonychus*, *Graciliraptor* and *Sinornithosaurus*, were no more than 1.8 metres long.

## Classification

Microraptoria is usually classified as clade of dromaeosaurid. Senter and colleagues expressly coined the name without the subfamily suffix *-inae* to avoid perceived issues with erecting a traditional family-group taxon, should the group be found to lie outside dromaeosauridae proper. Sereno offered a revised definition of the sub-group containing *Microraptor* to ensure that it would fall within Dromaeosauridae, and erected the subfamily Microraptorinae, attributing it to Senter *et al.*, though this usage has only appeared on his online TaxonSearch database and has not been formally published.

The cladogram below follows a 2012 analysis by paleontologists Phil Senter, James I. Kirkland, Donald D. DeBlieux, Scott Madsen and Natalie Toth.

## Footnotes

1. ↑ 1.0 1.1 Holtz, Thomas R. Jr. (2011) *Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages,* Winter 2010 Appendix.
2. ↑ Chatterjee, S., and Templin, R.J. (2007). "Biplane wing planform and flight performance of the feathered dinosaur *Microraptor gui*." *Proceedings of the National Academy of Sciences*, **104**(5): 1576-1580. [1]
3. ↑ Senter, Phil; Barsbold, R.; Britt, Brooks B.; Burnham, David B. (2004). "Systematics and evolution of Dromaeosauridae (Dinosauria, Theropoda)". *Bulletin of the Gunma Museum of Natural History* **8**: 1–20.
4. ↑ Sereno, P. C. 2005. Stem Archosauria—TaxonSearch [version 1.0, November 7, 2005
5. ↑ Senter, P.; Kirkland, J. I.; Deblieux, D. D.; Madsen, S.; Toth, N. (2012). Dodson, Peter, ed. "New Dromaeosaurids (Dinosauria: Theropoda) from the Lower Cretaceous of Utah, and the Evolution of the Dromaeosaurid Tail". *PLoS ONE* **7** (5): e36790. PMC 3352940. PMID 22615813. doi:10.1371/journal.pone.0036790.

## References

3."Expand and Life history of a basal bird:morphometrics of the Early Cretaceous Confuciusornis" Luis M Chiappe, Jesús Marugán-Lobón,Shu'an Ji & Zhonghe Zhou(2008)

## External links

* 1.http://www.paleodb.org/cgi-bin/bridge.pl?a=basicTaxonInfo&taxon\_no=143267
* 2.http://www.taxonsearch.org/dev/taxon\_edit.php?tax\_id=483&Action=View
* 3.http://theropoddatabase.blogspot.com/2010/03/article-1311-means-lewisuchinaeidae-is.html