In 1777, the Italian biologist Lazzaro Spallanzani named them Tardigrada (/tɑːrˈdɪɡrədə/), which means "slow steppers". They have been found in diverse...

96 Murray, J., 1905. The Tardigrada of the Forth Valley. Ann. Scott. Nat. Hist., 55: 160 - 164 Murray, J., 1906. The Tardigrada of the Forth Valley. Part...

characteristic shared by ecdysozoans is a three-layered cuticle (four in Tardigrada) composed of organic material, which is periodically molted as the animal...

(Richters, 1904), with some notes on Hypsibius arcticus (Murray, 1907)(Tardigrada). Mitteilungen aus den Hamburgischen Zoologischen Museum und Institut...

Panarthropoda is a proposed animal clade containing the extant phyla Arthropoda, Tardigrada (water bears) and Onychophora (velvet worms). Panarthropods also include...

Tardigrada, together forming the Panarthropoda. Stanleycaris appears to be a basal Euarthropod. Antennopoda was defined by De Haro, where Tardigrada was...

ancient representative of the genus Megatherium Cuvier, 1796 (Xenarthra, Tardigrada, Megatheriidae), from the Pliocene of the Bolivian Altiplano" (PDF). Geodiversitas...

Clark (2007). "Tardigrada of Xinjiang Uygur Autonomous Region, China". Proceedings of the Tenth International Symposium on Tardigrada (66 Suppl. 1): 49–55...

ISSN 0289-0003. PMID 28148217. Nelson, Diane R. (2002). "Current Status of the Tardigrada: Evolution and Ecology". Integrative and Comparative Biology. 42 (3):...

typically with paired appendages. Two smaller phyla, the Onychophora and Tardigrada, are close relatives of the arthropods and share these traits. The ecdysozoans...