Biology:Helcionella
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Short description: Extinct genus of molluscs
| Helcionella | |
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Scientific classification 
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| Script error: No such module "Taxobox ranks".: | Animalia |
| Script error: No such module "Taxobox ranks".: | Mollusca |
| Script error: No such module "Taxobox ranks".: | †Helcionelloida |
| Script error: No such module "Taxobox ranks".: | †Helcionelliformes |
| Script error: No such module "Taxobox ranks".: | †Helcionellidae |
| Script error: No such module "Taxobox ranks".: | †Helcionella Grabau & Shimer, 1909 |
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| Synonyms | |
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Pseudotheca Redlich 1899 | |
Helcionella is a genus of helcionellid, a fossil marine invertebrate animal that is considered to be a mollusk and may possibly be a gastropod. The shells of these animals are about a centimetre in size. The tip of the shell extends beyond the rear extremity of the shell's aperture, and the shell is "endogastric" in shape.[1]
Helcionella is the type genus of the family Helcionellidae.
References
- ↑ Cobbold, E. S. (1919). "I.—Cambrian Hyolithidæ, etc., from Hartshill in the Nuneaton District, Warwickshire". Geological Magazine 6: 149–158. doi:10.1017/S0016756800202483.
- A. W. Grabau and H. W. Shimer. 1909. North American index fossils, invertebrates 1-909
Wikidata ☰ Q5701564 entry
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