The DOI matches its Crossref record; 15 of the 15 references it cites were found in a registry or an index.
Sedimentary 12- n -Propylcholestanes, Molecular Fossils Diagnostic of Marine Algae
Abstract
Certain C 30 -steranes have been used for identifying sedimentary rocks and crude oils derived from organic matter deposited in marine environments. Analysis of a C 30 -sterane from Prudhoe Bay oil indicates that these C 30 -steranes are 24- n -propylcholestanes that apparently are derived from precursor sterols 24- n -propylidene-cholesterols and 24- n -propylcholesterol. These widely occurring sterols are biochemically synthesized in modern oceans by members of an order (Sarcinochrysidales) of chrysophyte algae. These data thus imply that C 30 -sterane biomarkers in sedimentary rocks and crude oils have a marine origin. Screening of a few organic-rich sedimentary rocks and oils from throughout the Phanerozoic suggests that these C 30 -steranes first appeared and, therefore, their source algae evolved between Early Ordovician and Devonian.
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Volkman, J. (2003) · Applied Microbiology and Biotechnology · doi:10.1007/s00253-002-1172-8 · Cited by 854
Fossil steroids record the appearance of Demospongiae during the Cryogenian period
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The Origin and Evolution of the Diatoms: Their Adaptation to a Planktonic Existence
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Metadata
- Authors
- Moldowan, J. M., Fago, F. J., Lee, C. Y., Jacobson, S. R., Watt, D. S., Slougui, N.-E., Jeganathan, A., & Young, D. C.
- Venue
- Science
- Published
- 1990-01-19
- Volume
- 247
- Issue
- 4940
- Pages
- 309-312
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2052794190
- Cited by
- 300
- References
- 15
- FWCI
- 8.98
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Sedimentary 12- n -Propylcholestanes, Molecular Fossils Diagnostic of Marine Algae. https://app.cochat.ai/papers/10.1126/science.247.4940.309
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- Moldowan, J. M., Fago, F. J., Lee, C. Y., Jacobson, S. R., Watt, D. S., Slougui, N.-E., Jeganathan, A., & Young, D. C. (1990). Sedimentary 12- n -Propylcholestanes, Molecular Fossils Diagnostic of Marine Algae. Science. https://doi.org/10.1126/science.247.4940.309
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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