Jump to content

User:A Cynical Idealist/sandbox4

From Wikipedia, the free encyclopedia

Paravians
Temporal range:
Middle JurassicPresent, 165–0 Ma[1]
Six paravian dinosaurs (top to bottom): Confuciusornis, Dromaeosaurus, Microraptor, Anchiornis, a crow, and the Prince Creek troodontid
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Theropoda
Clade: Pennaraptora
Clade: Paraves
Sereno, 1997
Subgroups
Synonyms
  • Eumaniraptora Padian et al. 1999
  • Deinonychosauria?

Paraves (or "near-birds") are a widespread group of theropod dinosaurs that originated in the Middle Jurassic period. In addition to the extinct dromaeosaurids, troodontids, anchiornithids, and possibly the scansoriopterygids, the group also contains the avialans, which include diverse extinct taxa as well as the over 10,000 species of living birds.[2] Basal members of Paraves are well known for the possession of an enlarged claw on the second digit of the foot, which was held off the ground when walking in some species.[3] A number of differing scientific interpretations of the relationships between paravian taxa exist. New fossil discoveries and analyses make the classification of Paraves an active subject of research.[4]

History of study[edit]

Initial discovery[edit]

Dinosaur renaissance[edit]

Debate about the origin of birds[edit]

Modern study[edit]

Anatomy[edit]

Body plan[edit]

Size[edit]

Feathers and wings[edit]

Feet and claws[edit]

Head and senses[edit]

Skeletal features[edit]

Classification[edit]

Phylogeny[edit]

  • Turner et al. (2012)[5]
  • Rauhut and Pol[6]
  • Angolin at al. (2019)[7]

One of the primary phylogenetic matrices in the scientific literature is the so-called "TWiG Matrix" from the Theropod Working Group. This matrix was first published by Steven Brusatte and colleagues in 2014.[8]

Paraves


Cau et al., 2017[edit]

Hartman et al., 2019[edit]

Motta et al., 2020[edit]

Evolution[edit]

Relationship to birds[edit]

  • Xu, Xing; Ma, Qingyu; Hu, Dongyu (2010). "Pre-Archaeopteryx coelurosaurian dinosaurs and their implications for understanding avian origins". Chinese Science Bulletin. 55 (35): 3971–3977. Bibcode:2010ChSBu..55.3971X. doi:10.1007/s11434-010-4150-z.

Taxonomy[edit]

Phylogenetic position of paravian groups in different topologies
Topology 1 Topology 2
Topology 3 Topology 4

Paleoecology[edit]

Diet[edit]

Distribution[edit]

Predation[edit]

See also[edit]

References[edit]

  1. ^ Zhang, H.; Wang, M.; Liu, X. (2008). "Constraints on the upper boundary age of the Tiaojishan Formation volcanic rocks in West Liaoning-North Hebei by LA-ICP-MS dating". Chinese Science Bulletin. 53 (22): 3574–3584. Bibcode:2008SciBu..53.3574Z. doi:10.1007/s11434-008-0287-4.
  2. ^ Cite error: The named reference TurneretalBAMNH was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Lietal2007 was invoked but never defined (see the help page).
  4. ^ Agnolin, Federico L.; Motta, Matias J.; Brissón Egli, Federico; Lo Coco, Gastón; Novas, Fernando E. (2019-02-12). "Paravian Phylogeny and the Dinosaur-Bird Transition: An Overview". Frontiers in Earth Science. 6. doi:10.3389/feart.2018.00252. hdl:11336/130197. ISSN 2296-6463.
  5. ^ Cite error: The named reference Turner2012 was invoked but never defined (see the help page).
  6. ^ Rauhut, Oliver WM; Tischlinger, Helmut; Foth, Christian (2019). "A non-archaeopterygid avialan theropod from the Late Jurassic of southern Germany". eLife. 8. doi:10.7554/eLife.43789. PMC 6516837. PMID 31084702.
  7. ^ Agnolin, Federico L.; Motta, Matias J.; Brissón Egli, Federico; Lo Coco, Gastón; Novas, Fernando E. (2019). "Paravian Phylogeny and the Dinosaur-Bird Transition: An Overview". Frontiers in Earth Science. 6. doi:10.3389/feart.2018.00252.
  8. ^ Brusatte, Stephen L.; Lloyd, Graeme T.; Wang, Steve C.; Norell, Mark A. (2014). "Gradual Assembly of Avian Body Plan Culminated in Rapid Rates of Evolution across the Dinosaur-Bird Transition" (PDF). Current Biology. 24 (20): 2386–2392. doi:10.1016/j.cub.2014.08.034. PMID 25264248. S2CID 8879023.
  9. ^ Cite error: The named reference hesperornithoides was invoked but never defined (see the help page).