Theropoda
Coelurosauria
Maniraptoriformes
Maniraptora
Therizinosauria
Therizinosauroidea
Therizinosauridae
Pronunciation: ther-ih-ZEE-no-SOR-uh-day
Author: Maleev
Year: 1954
Meaning: Reaping lizards (see etymology)
Locomotion: Bipedal
Synonyms:
Segnosauridae (Perle, 1979)
Enigmosauridae (Barsbold and Perle, 1983)
Nanshiungosauridae (Dong and Yu, 1997)
Erlikosauridae (Ryan and Russell, 2001)
Segnosauridae (Perle, 1979)
Enigmosauridae (Barsbold and Perle, 1983)
Nanshiungosauridae (Dong and Yu, 1997)
Erlikosauridae (Ryan and Russell, 2001)
[Zanno et al. 2009]Definition
The least inclusive clade containing Nothronychus mckinleyi, Segnosaurus galbinensis, Erlikosaurus andrewsi and Therizinosaurus cheloniformis.
About
Coming soon. In the meantime, click here to view Dinochecker's A-Z list of therizinosaurids.
Etymology
Therizinosauridae is derived from the Greek "therizo" (to reap or cut with a scythe) and "sauros" (lizard), and the Latin "-idae" (family), so named because of their long, scythe-like claws.
Relationships
References
• Maleev EA (1954) "Noviy cherepachoobrazhniy yashcher v Mongolii" [A new turtle-like reptile from Mongolia]. Priroda, (3): 106-108. (English translation by Jaime A. Headden, 2003)
• Perle A (1979) "Segnosauridae: novoe semejstvo teropod iz pozdnego mela Mongolii" [Segnosauridae: a new family of Theropoda from the Lower Cretaceous of Mongolia]. 
Sovmestnaya Sovetsko–Mongol’skaya eskpeditsia, Trudy [Joint Soviet-Mongolian Expedition, Transactions]: 45-55. (English translation by Catherine Siskron and Samuel P. Welles.)
• Barsbold R and Perle A (1980) "Segnosauria, a new suborder of carnivorous dinosaurs". Acta Palaeontologica Polonica, 25(2): 190-192.
• Perle A (1981) "Novyy segnozavrid iz verkhnego mela Mongolii" [New Segnosauridae from the Upper Cretaceous of Mongolia].
In Barsbold, Vorobyeva, Luvsandanzan, Tatarinov, Trofimov, Reshetov and Shishkin
(eds.) "Sovmestnaya Sovestsko-Mongol’skaya Paleontologicheskaya Ekspeditisiya, Trudy [Mongolian Vertebrate Fossils. Joint Soviet-Mongolian Expedition, Transactions]", 15: 50-59. (English translation by Catherine Siskron and Samuel P. Welles.)
• Barsbold R and Maryanska T (1990) "Saurischia Sedis Mutabilis: Segnosauria". Page 408-415 in Weishampel, Dodson and Osmolska (eds.) "The Dinosauria: First Edition".
• Zanno LE, Gillette DD, Albright LB and Titus AL (2009) "A new North American therizinosaurid and the role of herbivory in ‘predatory’ dinosaur evolution". Proceedings of the Royal Society B: Biological Sciences, 276(1672): 3505-11. DOI: 10.1098/rspb.2009.1029. [+Supp.]
• Zanno LE (2010) "A taxonomic and phylogenetic re-evaluation of Therizinosauria (Dinosauria: Maniraptora)". Journal of Systematic Palaeontology, 8(4): 503-543. DOI: 10.1080/14772019.2010.488045.
• Lautenschlager S (2014) "Morphological and functional diversity in therizinosaur claws and the implications for theropod claw evolution". Proceedings of the Royal Society B, 28(1785): 20140497. DOI: 10.1098/rspb.2014.0497.
• Lautenschlager S (2017) "Functional niche partitioning in Therizinosauria provides new insights into the evolution of theropod herbivory" Palaeontology, 60(3): 375-387. DOI: 10.1111/pala.12289.
Sovmestnaya Sovetsko–Mongol’skaya eskpeditsia, Trudy [Joint Soviet-Mongolian Expedition, Transactions]: 45-55. (English translation by Catherine Siskron and Samuel P. Welles.)
• Barsbold R and Perle A (1980) "Segnosauria, a new suborder of carnivorous dinosaurs". Acta Palaeontologica Polonica, 25(2): 190-192.
• Perle A (1981) "Novyy segnozavrid iz verkhnego mela Mongolii" [New Segnosauridae from the Upper Cretaceous of Mongolia].
In Barsbold, Vorobyeva, Luvsandanzan, Tatarinov, Trofimov, Reshetov and Shishkin
(eds.) "Sovmestnaya Sovestsko-Mongol’skaya Paleontologicheskaya Ekspeditisiya, Trudy [Mongolian Vertebrate Fossils. Joint Soviet-Mongolian Expedition, Transactions]", 15: 50-59. (English translation by Catherine Siskron and Samuel P. Welles.)
• Barsbold R and Maryanska T (1990) "Saurischia Sedis Mutabilis: Segnosauria". Page 408-415 in Weishampel, Dodson and Osmolska (eds.) "The Dinosauria: First Edition".
• Zanno LE, Gillette DD, Albright LB and Titus AL (2009) "A new North American therizinosaurid and the role of herbivory in ‘predatory’ dinosaur evolution". Proceedings of the Royal Society B: Biological Sciences, 276(1672): 3505-11. DOI: 10.1098/rspb.2009.1029. [+Supp.]
• Zanno LE (2010) "A taxonomic and phylogenetic re-evaluation of Therizinosauria (Dinosauria: Maniraptora)". Journal of Systematic Palaeontology, 8(4): 503-543. DOI: 10.1080/14772019.2010.488045.
• Lautenschlager S (2014) "Morphological and functional diversity in therizinosaur claws and the implications for theropod claw evolution". Proceedings of the Royal Society B, 28(1785): 20140497. DOI: 10.1098/rspb.2014.0497.
• Lautenschlager S (2017) "Functional niche partitioning in Therizinosauria provides new insights into the evolution of theropod herbivory" Palaeontology, 60(3): 375-387. DOI: 10.1111/pala.12289.
