Flagellicaudata

Flagellicaudata; Temporal range: Early Jurassic–Early Cretaceous, 174–122 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Restoration of Amargasaurus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	Saurischia
Suborder:	†Sauropodomorpha
Clade:	†Sauropoda
Clade:	†Diplodocimorpha
Clade:	†Flagellicaudata; Harris & Dodson, 2004
Families
	†Dicraeosauridae; †Diplodocidae;

Flagellicaudata is a clade of Dinosauria. It belongs to Sauropoda and includes two families, the Dicraeosauridae and the Diplodocidae.[1]

Phylogeny

The clade Flagellicaudata was erected by Harris and Dodson (2004) for the diplodocoid clade formed by Dicraeosauridae and Diplodocidae in their paper describing a new genus of sauropod dinosaur, Suuwassea. The authors carried out a phylogenetic analysis and noted that Suuwassea, although more derived than Rebbachisauridae, is in a trichotomy with other families belonging to Diplodocoidea (Diplodocidae and Dicraeosauridae). Flagellicaudata was defined as a node-based clade consisting of the most recent common ancestor of Dicraeosaurus and Diplodocus and all of its descendants. The word "Flagellicaudata" refers to long, whip-like tails of that animals (flagellum is a Latin word meaning "whip" and cauda means in Latin "tail").[1]

Fragment of cladogram presented in Harris and Dodson, 2004:[1]

Diplodocoidea

Flagellicaudata

Diplodocidae

Diplodocinae

	Barosaurus

	Diplodocus

Apatosaurus

Suuwassea

Dicraeosauridae

	Dicraeosaurus

	Amargasaurus

	Rebbachisaurus

	Nigersaurus

	Rayososaurus

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References

JD Harris, P Dodson (2004). "A new diplodocoid sauropod dinosaur from the Upper Jurassic Morrison Formation of Montana, USA". Acta Palaeontologica Polonica. 49 (2): 197–210.

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[Flagellicaudata-1] JD Harris, P Dodson (2004). "A new diplodocoid sauropod dinosaur from the Upper Jurassic Morrison Formation of Montana, USA". Acta Palaeontologica Polonica. 49 (2): 197–210.