Masillaraptoridae
| Masillaraptorids Temporal range: early-middle Eocene, | |
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| Life restoration of Masillaraptor | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Falconiformes |
| Family: | †Masillaraptoridae Mayr, 2009 |
| Genera | |
Masillaraptoridae is an extinct family of stem-group falconiform birds from the Eocene of Europe. They are noted for their relatively long legs. Two genera have been named: Danielsraptor, from the London Clay of England, and Masillaraptor, from Messel Pit in Germany.[1][2][3]
Description
Masillaraptorids had long legs, which may indicate that they had a terrestrial lifestyle, foraging on the ground similar to modern caracaras. They had large pygostyles, suggesting that they would have likely had long tail feathers. This, in addition to their long ulnae, suggest that they were capable of well-developed flight. Their beaks are similar to those of extinct phorusrhacids and extant caracaras.[3]
Classification
The cladogram below displays the phylogenetic position of Masillaraptoridae within the Falconiformes:[3]
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References
- ^ Mayr, Gerald (January 2006). "A new raptorial bird from the Middle Eocene of Messel, Germany". Historical Biology. 18 (2): 99–106. Bibcode:2006HBio...18...99M. doi:10.1080/08912960600640762. ISSN 0891-2963. S2CID 34895565.
- ^ Mayr, Gerald (2009-05-20). "A well-preserved second trogon skeleton (Aves, Trogonidae) from the middle Eocene of Messel, Germany". Palaeobiodiversity and Palaeoenvironments. 89 (1–2): 1–6. Bibcode:2009PdPe...89....1M. doi:10.1007/s12549-009-0001-9. ISSN 1867-1594. S2CID 73722121.
- ^ a b c Mayr, Gerald; Kitchener, Andrew C. (2022-07-08). "New fossils from the London Clay show that the Eocene Masillaraptoridae are stem group representatives of falcons (Aves, Falconiformes)". Journal of Vertebrate Paleontology. 41 (6): e2083515. doi:10.1080/02724634.2021.2083515. ISSN 0272-4634. S2CID 250402777.