Biology:Cambroclave
From HandWiki
Short description: Extinct class of enigmatic organisms
| Cambroclave | |
|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | incertae sedis |
| Class: | †Cambroclavida Conway Morris and Chen, 1991 |
Cambroclaves are a group of enigmatic, phosphatized, hollow spine-shaped sclerites, known from their geographically widespread Early to Middle Cambrian fossils,[1] which occur exclusively in shallow waters within the photic zone. They were probably originally aragonitic.[2] They are lobate with long spines protruding centrally; these spines are in some cases (e.g. Zhijinites) pillar-like, constituted of a bundle rods (originally aragonite?) with an Ionic-like appearance.[3] Some taxa have been compared to spicules of ecdysozoan worms,[4] whereas others likely belong to Protomelission-like organisms, which have been argued to be affiliated with the dasycladalean green algae and the bryozoans.[5]
Families
- Family Zhijinitidae (Qian, 1978)
See also
- Paracarinachitid
References
- ↑ Wotte, Thomas (2009). "The Youngest Cambroclaves: Cambroclavus absonus from the Middle Cambrian of the Cantabrian Zone (Northwest Spain)". Journal of Paleontology 83 (1): 128–134. doi:10.1666/08-039R.1.
- ↑ Porter, S. M. (2010). "Calcite and aragonite seas and the de novo acquisition of carbonate skeletons". Geobiology 8 (4): 256–277. doi:10.1111/j.1472-4669.2010.00246.x. PMID 20550583.
- ↑ Template:Cite palaeontology
- ↑ Conway Morris, S.; Peel, J.S. (2010). "New palaeoscolecidan worms from the Lower Cambrian: Sirius Passet, Latham Shale and Kinzers Shale". Acta Palaeontologica Polonica 55 (1): 141–156. doi:10.4202/app.2009.0058. http://www.app.pan.pl/archive/published/app55/app20090058.pdf.
- ↑ "Protomelission is a dasyclad alga and not a bryozoan". Nature. 2023.
Wikidata ☰ Q5025673 entry
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