From Wikipedia, the free encyclopedia

Micrina
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Order: "Tommotiida"
Genus: Micrina
Laurie, 1986
Type species
Platyceras etheridgei
Tate, 1892
Species
  • M. etheridgei
  • M. pusilla
  • M. ridicula
  • M. xiaotanensis

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

  • M. etheridgei (Tate, 1892)
  • M. pusilla Gravestock et al., 2001
  • M. ridicula (Barskova, 1988)
  • M. xiaotanensis Li & Xiao, 2004 [6]

References

  1. ^ 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.
  2. ^ 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)
  3. ^ 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)
  4. ^ 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)
  5. ^ 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)
  6. ^ 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.


From Wikipedia, the free encyclopedia

Micrina
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Order: "Tommotiida"
Genus: Micrina
Laurie, 1986
Type species
Platyceras etheridgei
Tate, 1892
Species
  • M. etheridgei
  • M. pusilla
  • M. ridicula
  • M. xiaotanensis

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

  • M. etheridgei (Tate, 1892)
  • M. pusilla Gravestock et al., 2001
  • M. ridicula (Barskova, 1988)
  • M. xiaotanensis Li & Xiao, 2004 [6]

References

  1. ^ 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.
  2. ^ 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)
  3. ^ 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)
  4. ^ 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)
  5. ^ 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)
  6. ^ 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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