Saurischia
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 & Perle, 1983)
Nanshiungosauridae (Dong & Yu, 1997)
Erlikosauridae (Ryan & Russell 2001)
Author: Maleev
Year: 1954
Meaning: Reaping lizards (see etymology)
Locomotion: Bipedal
Synonyms: Segnosauridae (Perle, 1979)
Enigmosauridae (Barsbold & Perle, 1983)
Nanshiungosauridae (Dong & Yu, 1997)
Erlikosauridae (Ryan & 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) "????? ???????????????? ???? ? ????????" [A new turtle-like reptile from Mongolia]. ??????? (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 / Polyglot.)
• 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 / Polyglot.)
• 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 / Polyglot.)
• 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 / Polyglot.)
• 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
