Paropsonemid
Appearance
Paropsonemid Temporal range:
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Stem group: | Ambulacraria |
Clade: | †Cambroernida |
Family: | †Eldoniidae |
Clade: | †Paropsonemida |
The paropsonemids are problematic fossils known from the Early Cambrian to Devonian periods, which may be related to the Cambrian eldoniids.[2] They are typified by the Chengjiang genus Paropsonema.
References
- ^ Conway Morris, S. (1993). "The fossil record and the early evolution of the Metazoa". Nature. 361 (6409): 219–225. Bibcode:1993Natur.361..219M. doi:10.1038/361219a0.
- ^ D. Friend; A. Yu. Zhuravlev; I. A. Solov’ev (2002). "Middle Cambrian Eldonia from the Siberian Platform". Paleontological Journal. 36 (1): 20–24. Archived from the original on 2016-03-03.
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