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Machaeridia (annelid)
| Machaeridia Temporal range:
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| Turrilepas specimens. | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Annelida |
| Clade: | Pleistoannelida |
| Subclass: | Errantia |
| Order: | Phyllodocida |
| Suborder: | Aphroditiformia |
| Clade: | †Machaeridia |
| Families | |
Machaeridia is an extinct group of armoured, segmented annelid worms, known from the Early Ordovician (Late Tremadoc) to Carboniferous. It consists of three distinct families: the plumulitids, turrilepadids and lepidocoleids.[2]
- ^ Herringshaw, L. G.; Raine, R. J. (2007). "The earliest turrilepadid: A machaeridian from the Lower Ordovician of the Northwest Highlands". Scottish Journal of Geology. 43 (2): 97. Bibcode:2007ScJG...43...97H. doi:10.1144/sjg43020097. S2CID 128899353.
- ^ Vinther, Jakob; Van Roy, P; Briggs, DE (2008). "Machaeridians are Palaeozoic armoured annelids". Nature. 451 (7175): 185–8. Bibcode:2008Natur.451..185V. doi:10.1038/nature06474. PMID 18185586. S2CID 4401508.
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