n.in some classifications considered a separate phylum: microscopic arachnid-like invertebrates living in water or damp moss having 4 pairs of legs and instead of a mouth a pair of stylets or needlelike piercing organs connected with the pharynx

同義詞：class Tardigrada

Current status of the tardigrada: evolution and ecology
A new eutardigrade (Tardigrada: Milnesiidae) in amber from the Upper Cretaceous (Turonian) of New Jersey
The ear region of edentates and the phylogeny of the Tardigrada (Mammalia, Xenarthra)
Muzzle of South American Pleistocene ground sloths (Xenarthra, Tardigrada).
Phylogenetic relationships among sloths (Mammalia, Xenarthra, Tardigrada): the craniodental evidence
Phylogenetic relationships among sloths (Mammalia, Xenarthra, Tardigrada): the craniodental evidence
MicroRNAs and phylogenomics resolve the relationships of Tardigrada and suggest that velvet worms are the sister group of Arthropoda
A revision of the Macrobiotus hufelandi group (Tardigrada, Macrobiotidae), with some observations on the taxonomic characters of eut...
Paleobiology of Pleistocene ground sloths (Xenarthra, Tardigrada): biomechanics, morphogeometry and ecomorphology applied to the mas...
Taylor & Francis Online :: The ear region of edentates and the phylogeny of the Tardigrada (Mammalia, Xenarthra) - Journal of Verteb...