Biology:Paropsonemid
From HandWiki
Short description: Extinct clade of problematic fossils
| Paropsonemid | |
|---|---|
Scientific classification 
| |
| 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. doi:10.1038/361219a0. Bibcode: 1993Natur.361..219M. https://books.google.com/books?id=ND71kyPhEn8C&pg=PA128#v=onepage&f=false.
- ↑ 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. https://web.archive.org/web/20160303191129/http://www.maik.ru/abstract/paleng/2/paleng1_2p20abs.htm.
Wikidata ☰ Q7139454 entry
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