Anatomy and relationships of the Early Cambrian worm Myoscolex

@article{Dzik2004AnatomyAR,
  title={Anatomy and relationships of the Early Cambrian worm Myoscolex},
  author={Jerzy Dzik},
  journal={Zoologica Scripta},
  year={2004},
  volume={33}
}
  • J. Dzik
  • Published 2004
  • Biology
  • Zoologica Scripta
Dzik, J. (2004). Anatomy and relationships of the Early Cambrian worm Myoscolex. —Zoologica Scripta, 33, 57–69. 
Early Cambrian Arthropods from the Emu Bay Shale Lagerstätte, South Australia
© Instituto Geologico y Minero de Espana. The document attached has been archived with permission from the publisher.
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Most of the specimens of Myoscolex ateles Glaessner, 1979, the most abundant soft-bodied taxon in the Big Gully fauna from the Lower Cambrian Emu Bay Shale of South Australia, preserve only theExpand
A possible Early Cambrian chordate
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The first chordate recorded from the Early Cambrian is the ceph-alochordate Yunnanozoon lividum from the 525 million-year-old Chengjiang fauna and predicts that other chordate clades (tunicates and craniates) had evolved by the Late Atdabanian, in the main burst of the Cambrian Explosion. Expand
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The second specimen of Xenurion auerswaldae Pompeckj 1927, found in an erratic boulder of the basal Cambrian Kalmarsund sandstone in Hiddensee island, GDR, appears to represent the part of the body missing in the holotype, enabling reconstruction of the whole animal, which was of rather simple anatomical organization. Expand
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New fossil worms from the Lower Cambrian of the Kinzers Formation, Pennsylvania, with some comments on Burgess Shale-type preservation
Two new fossil worms are described from the Lower Cambrian Kinzers Formation of southeast Pennsylvania. Both are unique specimens. Kinzeria crinita new genus and species has a body divided into threeExpand
A Pikaia-like chordate from the Lower Cambrian of China
TLDR
A single specimen of a Lower Cambrian chordate, Cathaymyrus diadexus, new genus and species, that is similar to Pikaia but predates it by about 10 million years (Myr). Expand
Lower Cambrian Crustacea and annelid worms from Kangaroo Island, South Australia
TLDR
The Lower Cambrian Emu Bay Shale contains in its lower part, exposed near White Point on the north coast of Kangaroo Island, an unusual assemblage of phyllocarid crustaceans and annelid worms that appears to be a thanatocoenosis deposited in a reducing environment but preservation of the worms is largely due to diagenetic calcification of their soft tissues. Expand
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From a decision in favour of Hypothesis 2 it would follow that the Clitellata should be considered the most primitive annelid. Expand
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TLDR
The hypothesis of halkieriids and their relatives having a key role in annelid-brachiopod-mollusc evolution is in accord with some earlier proposals and recent evidence from molecular biology, but casts doubt on a number of favoured concepts. Expand
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