A taxonomic and phylogenetic re-evaluation of Therizinosauria (Dinosauria: Maniraptora)

@article{Zanno2010ATA,
  title={A taxonomic and phylogenetic re-evaluation of Therizinosauria (Dinosauria: Maniraptora)},
  author={Lindsay E. Zanno},
  journal={Journal of Systematic Palaeontology},
  year={2010},
  volume={8},
  pages={503 - 543}
}
  • Lindsay E. Zanno
  • Published 3 November 2010
  • Environmental Science, Geography, Biology
  • Journal of Systematic Palaeontology
Therizinosaurians are among the most poorly understood dinosaurs. Their unusual morphology and fragmentary fossil record has precluded a synthetic understanding of the group since their remains were first discovered over 60 years ago. Although the clade was recently substantiated as a monophyletic group of maniraptoran theropods, little foundational work has been conducted at the species level. A recent plethora of therizinosaurian discoveries – including the most complete primitive and derived… 
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References

SHOWING 1-10 OF 213 REFERENCES
A primitive therizinosauroid dinosaur from the Early Cretaceous of Utah
TLDR
A new, primitive therizinosauroid is described from an extensive paucispecific bonebed at the base of the Cedar Mountain Formation of east-central Utah, indicating that this species documents the earliest known stage in the poorly understood transition from carnivory to herbivory within Therizinosauroidea.
The phylogenetic position of the Tyrannosauridae: implications for theropod systematics
  • T. Holtz
  • Environmental Science, Geography
    Journal of Paleontology
  • 1994
TLDR
The inclusion of the Tyrannosauridae within Maniraptora suggests a major adaptive radiation of coelurosaurs within Cretaceous Asiamerica comparable to contemporaneous radiations in various herbivorous dinosaurian clades.
A NEW PHYLOGENY OF THE CARNIVOROUS DINOSAURS
  • T. Holtz
  • Environmental Science, Geography
  • 2001
The last several years have seen the discovery of many new theropod dinosaur taxa. Data obtained from these and from fragmentary forms not previously utilized in cladistic analyses are examined. An…
New evidence on deinonychosaurian dinosaurs from the Late Cretaceous of Patagonia
TLDR
A new, Late Cretaceous member of the clade, Neuquenraptor argentinus gen. et sp.
A new North American therizinosaurid and the role of herbivory in ‘predatory’ dinosaur evolution
TLDR
It is suggested that hypercarnivory in paravian dinosaurs is a secondarily derived dietary specialization and provide a potential mechanism for the invasion of novel morpho- and ecospace early in coelurosaurian evolution—the loss of obligate carnivory and origin of dietary opportunism.
THE AFFINITIES OF THE ENIGMATIC DINOSAUR ESHANOSAURUS DEGUCHIIANUS FROM THE EARLY JURASSIC OF YUNNAN PROVINCE, PEOPLE’S REPUBLIC OF CHINA
TLDR
Detailed consideration of the holotype specimen suggests that several features of the dentary and dentition exclude Eshanosaurus from Sauropodomorpha and support its inclusion within Therizinosauroidea.
A therizinosauroid dinosaur with integumentary structures from China
TLDR
This new taxon from the Yixian Formation provides fresh evidence that therizinosauroids are nested within the coelurosaurian theropods, and supports the hypothesis that the filamentous integumentary structures may be homologous to the feathers of birds.
A new carnivorous dinosaur from the Late Jurassic Solnhofen archipelago
TLDR
A cladistic analysis indicates that the new theropod dinosaur described from the Late Jurassic period of Schamhaupten in southern Germany is closer to maniraptorans than to tyrannosauroids, grouping it with taxa often considered to be compsognathids.
THE PECTORAL GIRDLE AND FORELIMB OF THE PRIMITIVE THERIZINOSAUROID FALCARIUS UTAHENSIS (THEROPODA, MANIRAPTORA): ANALYZING EVOLUTIONARY TRENDS WITHIN THERIZINOSAUROIDEA
TLDR
Analysis of the pectoral girdle and forelimb suggests that Theriz Dinosauridae is more appropriately defined as a derived clade including Nothronychus, Erlicosaurus, Neimongosaurus, Therizinosaurus, and Segnosaurus, and strong support is recovered for a clade containing these five genera plus “Alectrosaurus” and Erliansaurus.
Arctometatarsalia revisited: The problem of homoplasy in reconstructing theropod phylogeny
  • T. Holtz
  • Environmental Science, Biology
  • 2001
TLDR
No phylogenetic hypothesis that eliminates homoplasy (convergence, reversals, or both) is possible at present, but increased outgroup information and new data from primitive members of the various clades may help to resolve these relationships.
...
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