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Micrina
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 | This article may need to be rewritten to comply with Wikipedia's quality standards. (July 2017) |
| Micrina | |
|---|---|
Scientific classification 
| |
| Kingdom: | Animalia |
| Order: | Tommotiida |
| Genus: | †Micrina Laurie, 1986 |
| Type species | |
| Platyceras etheridgei Tate, 1892
| |
| Species | |
| |
Micrina is an extinct genus of tommotiids with affinities to brachiopods.[1]
Micrina can be considered a stem group brachiopod based on its larval shell.[2]
Its microstructure is very brachiopod like[3] and its adult morphology is similarly bivalved,[4] even though it was once thought to be halkieriid-like.[5]
Micrina is quite similar to Mickwitzia in terms of shell microstructure. The two genera are evidently closely related.
Species
[edit]- M. etheridgei (Tate, 1892)
- M. pusilla Gravestock et al., 2001
- M. ridicula (Barskova, 1988)
- M. xiaotanensis Li & Xiao, 2004[6]
References
[edit]- ^ McMenamin, M. A. S. (1992). "Two new species of the Cambrian genus Mickwitzia". Journal of Paleontology. 66 (2): 173–182. doi:10.1017/S0022336000033680. JSTOR 1305903. S2CID 132405917.
- ^ Holmer L. E., Skovsted C. B., Larsson C., Brock G. A., Zhang Z. (2011). "First record of a bivalved larval shell in Early Cambrian tommotiids and its phylogenetic significance". Palaeontology. 54 (2): 235–239. doi:10.1111/j.1475-4983.2010.01030.x.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Balthasar U., Skovsted C. B., Holmer L. E., Brock G. A. (2009). "Homologous skeletal secretion in tommotiids and brachiopods". Geology. 37 (12): 1143–1146. Bibcode:2009Geo....37.1143B. doi:10.1130/g30323a.1.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Holmer L. E., Skovsted C. B., Brock , Valentine J. L., Paterson J. R. (2008). "The Early Cambrian tommotiid Micrina, a sessile bivalved stem group brachiopod". Biol. Lett. 4 (6): 724–728. doi:10.1098/rsbl.2008.0277. PMC 2614141. PMID 18577500.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Holmer L. E., Skovsted C. B., Williams A. (2002). "A stem group brachiopod from the lower Cambrian: support for a Micrina (Halkieriid) ancestry". Palaeontology. 45 (5): 875–882. doi:10.1111/1475-4983.00265.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Li G.-X., Xiao S.-H. (2004). "Tannuolina and Micrina (Tannuolinidae) from the Lower Cambrian of Eastern Yunnan, South China, and Their Scleritome Reconstruction". J. Paleontol. 78 (5): 900–913. doi:10.1666/0022-3360(2004)078<0900:TAMTFT>2.0.CO;2. JSTOR 4094916. S2CID 131286565.
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