(/ˈkaɪtənz, -tɒnz/) are marine molluscs of varying size in the class Polyplacophora (/ˌpɒlipləˈkɒfərə/ POL-ee-plə-KOF-ər-ə), formerly known as Amphineura...

has been and remains problematic. A phylogenetic study suggests the Polyplacophora form a clade with a monophyletic Aplacophora. Additionally, it suggests...

incorporating those groups that have no conch or shell, that is, the Polyplacophora, Caudofoveata (=Chaetodermomorpha) and Solenogastres (=Neomeniomorpha)...

with four molluscan orders: the gastropods (snails), bivalves (clams), Polyplacophora (chitons) and Scaphopoda (tusk shells). Cephalopods only have small...

List of mollusc orders illustrates the 97 orders in the phylum Mollusca, the largest marine animal phylum. 85,000 extant species are described, making...

Septemchitonidae is an extinct family of chitons (Polyplacophora) known from Europe and North America. Morphologically, the clade is defined by rectangular...

Lesley (2 January 2007). "Early Palaeozoic diversification of chitons (Polyplacophora, Mollusca) based on new data from the Silurian of Gotland, Sweden"....

squids and cuttlefish) Gastropoda (snails and slugs) Monoplacophora Polyplacophora (chitons, or sea cradles) Scaphopoda (tusk shells) Micrognathozoa Chromadorea...

Iwao Taki (Japanese name: 瀧巖, 瀧巌, 滝巌, Hiragana: たき いわお, 19 June 1901 - 31 May 1984) was a Japanese malacologist. He described many taxa of Mollusca with...

Ontogeny of the Polyplacophora: First image shows the trochophore, second shows the stadium in metamorphosis, third is a juvenile (scanning electron microscope:...