Wiwaxia is a genus of soft-bodied animals that were covered in carbonaceous scales and spines that protected it from predators. Wiwaxia fossils—mainly...

common spongelike animal called Chancelloria; an armored slug-like form Wiwaxia; an armored worm with a pair of brachiopod-like shells Halkieria; and another...

combining the names of two members of the proposed group, Halkieria and Wiwaxia. The group was defined as a set of Early to Mid Cambrian animals that had:...

that Odontogriphus's feeding apparatus, which is "nearly identical" to Wiwaxia's, is an early version of the molluscan radula, a chitinous "tongue" that...

"probable bilaterian", if that. There is an even sharper debate about whether Wiwaxia, from about 505 million years ago, was a mollusc, and much of this centers...

Shale organisms, such as Canadia, may also have polychaete affinities. Wiwaxia, long interpreted as an annelid, is now considered to represent a mollusc...

"great aunt" of annelids and Wiwaxia was an "aunt" of annelids. Their claim of a close relationship between halkieriids and Wiwaxia was based on both groups'...

sclerites are very similar to those of its Burgess Shale contemporary Wiwaxia. Its shell is very similar to: one of the two Burgess Shale shell types...

than "probable bilaterian". There is an even sharper debate about whether Wiwaxia, from about 505 million years ago, was a mollusc, and much of this centers...

a stepping stone between the solid chaetae-like chitinous sclerites of Wiwaxia and the partially hollow, biomineralized sclerites of aculiferan molluscs...

Butterfield, N.J. (1990). "A reassessment of the enigmatic Burgess Shale fossil Wiwaxia corrugata (Matthew) and its relationship to the polychaete Canadia spinosa...

among Aplacophora, Polyplacophora, Gastropoda, and the Cambrian fossil Wiwaxia corrugata". Journal of Morphology. 257 (2): 219–245. doi:10.1002/jmor.10121...

has been proposed to be a member of the order Phyllodocida along with Wiwaxia, another organism from the Burgess Shale. Both were placed in a new superfamily...

genus of bizarre stem-group arthropod distantly related to the radiodonts. Wiwaxia, a genus of possible mollusk that had copious numbers of carbonaceous scales...

Hyolitha, Nematomorpha, Phoronida, and Chordata. Possible molluscs include Wiwaxia and Nectocaris. About one in eight animals are problematic forms of uncertain...

Butterfield, N. J. (1990). "A reassessment of the enigmatic Burgess Shale fossil Wiwaxia corrugata (Matthew) and its relationship to the polychaete Canadia spinosa...

There has been vigorous debate about whether the Burgess Shale fossil Wiwaxia was a mollusc or an annelid. Polychaetes diversified in the early Ordovician...

academic who has so far published articles placing Wiwaxia closer to polychaetes, stated that Wiwaxia′s two-row feeding apparatus could not have performed...

arthropod class. Organisms such as the five-eyed Opabinia and spiny slug-like Wiwaxia were so different from anything else known that Whittington's team assumed...

"Ontogeny, morphology and taxonomy of the soft-bodied Cambrian 'mollusc' Wiwaxia". Palaeontology. 57 (1): 215–229. Bibcode:2014Palgy..57..215S. doi:10.1111/pala...

confirmed polyplacophorans date back to the Early Ordovician. Kimberella and Wiwaxia of the Precambrian and Cambrian may be related to ancestral polyplacophorans...

from Cambrian sediments include the minute scales of priapulid worms, Wiwaxia sclerites, and arthropod feeding parts, for example. These organisms are...

Clockwise from top left: Marrella, Hallucigenia, Waptia, Sidneyia, Anomalocaris, Olenoides, Ottoia, Wiwaxia...

within the coeloscleritophorans: the Sachitids, to which Halkieria and Wiwaxia belong, and the Chancellorids. The Ediacaran fossil Ausia has been touted...

"Spatiotemporal distribution and morphological diversity of the Cambrian Wiwaxia: New insights from South China". Global and Planetary Change. 239. 104507...

Canadian Rockies of British Columbia, Canada. The Burgess Shale animal Wiwaxia corrugata is named after it. The nearest higher neighbor is Mount Huber...

of the chaetognaths; whilst teeth would be expected, a similar fossil, Wiwaxia, shows such structures in only 10% of the expected instances, and anomalocaridids...

Varied soft bodied organisms are also locally preserved, including Naraoia, Wiwaxia and Hallucigenia. Marjum Formation 502 Ma Western Utah, US A site known...

putatively compared with the mandibles of an Arthropod and the mouthparts of Wiwaxia and Odontogriphus. If it were to have been a jaw, it would have been used...

soft bodied organisms are locally preserved, a fauna (including Naraoia, Wiwaxia and Hallucigenia) and preservation style (carbonaceous film) normally associated...