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Paleoecology

[edit]
  • Velociraptor endocranium[1]

Diet and feeding

[edit]
See also: The Fighting Dinosaurs and Dinosaur diet and feeding
Two eudromaeosaur teeth: Zapsalis (left) and Velociraptor (right)
  • Morphological disparity in teeth[2]
  • Gnawing behavior[3]
  • Juvenile ceratopsian bite marks[4]
  • Yurgovuchia found with ankylosaur and iguanodont remains[5]
  • Azhdarchid scavenging[6]
  • Cedar mountain niche partitioning[7]
  • Fighting dinosaurs[8]
  • Actual feeding process[9]
  • Diet vs unenlagiines[10]
  • Digging predation[11]
  • Ontogenetic dietary shift in Deinonychus[12]

Eudromaeosaurs are presumed to have all been hypercarnivores. However, their considerable variation in size and distribution throughout the Cretaceous implies that there was likely a great variety in the composition of their prey.

Possible modes of eudromaeosaur predation
  • Hunting much smaller animals
    Hunting much smaller animals
  • Restraining and disemboweling similarly-sized animals
    Restraining and disemboweling similarly-sized animals
  • Individual combat with larger or similarly-sized animals
    Individual combat with larger or similarly-sized animals
  • Forming groups to hunt larger animals
    Forming groups to hunt larger animals

Roles in ecosystems

[edit]
  • Ecology of mesopredators in Aguja[13]
  • Prince Creek teeth and ecology[14]

Sociality

[edit]

Locomotion

[edit]
See also: Wing-assisted incline running
  • Walking cycle reconstruction[15]
  • Comparative dromaeosaurid locomotion[16]
  • WAIR[17][18]
  1. ^ King, J. Logan; Sipla, Justin S.; Georgi, Justin A.; Balanoff, Amy M.; Neenan, James M. (2020). "The endocranium and trophic ecology of Velociraptor mongoliensis". Journal of Anatomy. 237 (5): 861–869. doi:10.1111/joa.13253. PMC 7542195. PMID 32648601.
  2. ^ Larson, Derek W.; Brown, Caleb M.; Evans, David C. (2016). "Dental Disparity and Ecological Stability in Bird-like Dinosaurs prior to the End-Cretaceous Mass Extinction". Current Biology. 26 (10): 1325–1333. doi:10.1016/j.cub.2016.03.039. PMID 27112293.
  3. ^ Brown, Caleb M.; Tanke, Darren H.; Hone, David W.E. (2021). "Rare evidence for 'gnawing-like' behavior in a small-bodied theropod dinosaur". PeerJ. 9: e11557. doi:10.7717/peerj.11557. PMC 8234920. PMID 34221716.
  4. ^ Hone, David W.E.; Tanke, Darren H.; Brown, Caleb M. (2018). "Bite marks on the frill of a juvenile Centrosaurus from the Late Cretaceous Dinosaur Provincial Park Formation, Alberta, Canada". PeerJ. 6: e5748. doi:10.7717/peerj.5748. PMC 6188009. PMID 30345174.
  5. ^ Cite error: The named reference Yurgovuchia was invoked but never defined (see the help page).
  6. ^ Hone, David; Tsuihiji, Takanobu; Watabe, Mahito; Tsogtbaatr, Khishigjaw (2012). "Pterosaurs as a food source for small dromaeosaurs". Palaeogeography, Palaeoclimatology, Palaeoecology. 331–332: 27–30. doi:10.1016/j.palaeo.2012.02.021.
  7. ^ Frederickson, J. A.; Engel, M. H.; Cifelli, R. L. (2018). "Niche Partitioning in Theropod Dinosaurs: Diet and Habitat Preference in Predators from the Uppermost Cedar Mountain Formation (Utah, U.S.A.)". Scientific Reports. 8: 17872. Bibcode:2018NatSR...817872F. doi:10.1038/s41598-018-35689-6. PMID 30552378.
  8. ^ Carpenter, Kenneth (1998). "Evidence of Predatory Behavior by Carnivorous Dinosaurs" (PDF). GAIA. 15: 135–144. ISSN 0871-5424.
  9. ^ Torices, A.; Wilkinson, R.; Arbour, V.M.; Ruiz-Omeñaca, J.I.; Currie, P.J. (2018). "Puncture-and-Pull Biomechanics in the Teeth of Predatory Coelurosaurian Dinosaurs". Current Biology. 28 (9): 1467–1474. Bibcode:2018CBio...28E1467T. doi:10.1016/j.cub.2018.03.042. PMID 29706515.
  10. ^ Gianechini, Federico A.; Ercoli, Marcos D.; Díaz-Martínez, Ignacio (2020). "Differential locomotor and predatory strategies of Gondwanan and derived Laurasian dromaeosaurids (Dinosauria, Theropoda, Paraves): Inferences from morphometric and comparative anatomical studies". Journal of Anatomy. 236 (5): 772–797. doi:10.1111/joa.13153. PMC 7163733. PMID 32023660.
  11. ^ Simpson, Edward L.; Hilbert-Wolf, Hannah L.; Wizevich, Michael C.; Tindall, Sarah E.; Fasinski, Ben R.; Storm, Lauren P.; Needle, Mattathias D. (2010). "Predatory digging behavior by dinosaurs". Geology. 38 (8): 699–702. Bibcode:2010Geo....38..699S. doi:10.1130/G31019.1.
  12. ^ Frederickson, J.A.; Engel, M.H.; Cifelli, R.L. (2020). "Ontogenetic dietary shifts in Deinonychus antirrhopus (Theropoda; Dromaeosauridae): Insights into the ecology and social behavior of raptorial dinosaurs through stable isotope analysis". Palaeogeography, Palaeoclimatology, Palaeoecology. 552. Bibcode:2020PPP...55209780F. doi:10.1016/j.palaeo.2020.109780.
  13. ^ Wick, Steven L.; Lehman, Thomas M.; Brink, Alyson A. (2015). "A theropod tooth assemblage from the lower Aguja Formation (Early Campanian) of West Texas, and the roles of small theropod and varanoid lizard mesopredators in a tropical predator guild". Palaeogeography, Palaeoclimatology, Palaeoecology. 418: 229–244. Bibcode:2015PPP...418..229W. doi:10.1016/j.palaeo.2014.11.018.
  14. ^ Fiorillo, Anthony R.; Gangloff, Roland A. (2000). "Theropod teeth from the Prince Creek Formation (Cretaceous) of northern Alaska, with speculations on Arctic Dinosaur paleoecology". Journal of Vertebrate Paleontology. 20 (4): 675. doi:10.1671/0272-4634(2000)020[0675:TTFTPC]2.0.CO;2. ISSN 0272-4634.
  15. ^ Manafzadeh, Armita R.; Gatesy, Stephen M.; Bhullar, Bhart-Anjan S. (2024). "Articular surface interactions distinguish dinosaurian locomotor joint poses". Nature Communications. 15 (1): 854. Bibcode:2024NatCo..15..854M. doi:10.1038/s41467-024-44832-z. PMC 10873393. PMID 38365765.
  16. ^ Gianechini, Federico A.; Ercoli, Marcos D.; Díaz-Martínez, Ignacio (2020). "Differential locomotor and predatory strategies of Gondwanan and derived Laurasian dromaeosaurids (Dinosauria, Theropoda, Paraves): Inferences from morphometric and comparative anatomical studies". Journal of Anatomy. 236 (5): 772–797. doi:10.1111/joa.13153. PMC 7163733. PMID 32023660.
  17. ^ Senter, P. (2006). "Scapular orientation in theropods and basal birds, and the origin of flapping flight" (Automatic PDF download). Acta Palaeontologica Polonica. 51 (2): 305–313.
  18. ^ Nudds, Robert L.; Dyke, Gareth J. (2009). "Forelimb posture in dinosaurs and the evolution of the avian flapping flight- stroke". Evolution. 63 (4): 994–1002. doi:10.1111/j.1558-5646.2009.00613.x. PMID 19154383. S2CID 29012467.
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