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Jurassic Forum » JURASSIC references & paper reviews » Jurassic around the world » Wolkenstein et al. (2008) (Hypericinoid pigments in Millericrinids from Kimmeridgian)
Wolkenstein et al. (2008)
mhornДата: Monday, 09.02.2009, 23:41 | Сообщение # 1
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Wolkenstein K., Głuchowski E., Gross J.H., Marynowski L. (2008) Hypericinoid pigments in Millericrinids from the Lower Kimmeridgian of the Holy Cross Mountains (Poland) // Palaios. Vol. 23, Issue 11, P.773-777.

pdf: http://www.bioone.org/doi/pdf/10.2110/palo.2008.p08-021r

Purple to violet colored millericrinids (Crinoidea) are described from the lower Kimmeridgian of the Małogoszcz quarry, Holy Cross Mountains, Poland. By chemical analysis using high-performance liquid chromatography, ultraviolet/visible spectroscopy, and mass spectrometry, the organic compounds were characterized as a homologous series of hypericinoid pigments ranging from C28H12O8 (fringelite F) to C36H28O8. The results indicate that hypericinoid pigments were more widespread in millericrinids than previously known. The presence of new hypericin derivatives in the fossil crinoids with characteristic alkyl side chains shows that Mesozoic hypericinoid pigments were closely related to recent crinoidal pigments.


Middle Jurassic - Lower Cretaceous ammonites & aptychi
 
Jurassic Forum » JURASSIC references & paper reviews » Jurassic around the world » Wolkenstein et al. (2008) (Hypericinoid pigments in Millericrinids from Kimmeridgian)
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