PALAEOECOLOGY OF THE LATE DEVONIAN PALYNOMORPHS, SOUTHWEST DAMGHAN

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

HASHEMI S.H.; FAHIMI M.

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: GEOSCIENCES Year:2011 | Volume:20 | Issue:79 Page(s): 39-46

Download Full-Text

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Verion

View:

1,164

Download:

Cites:

Information Journal Paper

Title

PALAEOECOLOGY OF THE LATE DEVONIAN PALYNOMORPHS, SOUTHWEST DAMGHAN

Author(s)

HASHEMI S.H. | FAHIMI M. | Issue Writer Certificate

Keywords

PALAEOECOLOGYQ2

PALYNOMORPHSQ2

PLANT MEGAFOSSILSQ2

LATE DEVONIANQ2

EAST CENTRAL ALBORZQ2

Abstract

The Upper Devonian sequences in vicinity of Darvar, southwest Damghan comprise alternation of conglomerates, quartzites, sandstones, siltstones, shales, with fossiliferous limestone intercalations unconformably overlying the Ordovician strata and gradually preceding carbonates of the Lower Carboniferous Mobarak Formation. Diverse biota embracing brachiopods, trilobites, fish, gastropods, corals, echinoderms, and conodonts in conjunction with well-preserved PALYNOMORPHS, in descending order of abundance, of both terrestrial and marine origin occur in the Upper Devonian strata (Geirud Formation) of Darvar, southwest Damghan. Scolecodonts rarely occur in the material studied but no representative of Chitinozoans encountered. Based on the known stratigraphic distribution of taxa such asCymatiosphaera perimembrana, Chomotriletes vedugensis, Deltotosoma intonsum, Papulogabata annulata, Tornacia sarjeantii, Unellium lunatum, Unellium piriforme, Retispora lepidophyta, Geminospora lemurata, Retusotriletes rugulatus, Grandispora cornuta, Grandispora sp. cf. G. gracilis the Geirud Formation is attributed to the LATE DEVONIAN (Frasnian-Famennian). Occurrence, in the material studied, of microphytoplankton cysts with relatively thin eilyma and ±circular, psilate or sculptured vesicle indicates deposition in a shallow, marginal marine depositional setting. Presence of Geminospora lemurata in majority of the samples refers to the occurrence of progymnosperms and that of poorly preserved Lepidodendrales to that of lycopodophytes in contemporaneous land vegetation. Affinity of sporae dispersae in the Geirud palynoflora indicates that fern allies such as Equisetopsida, Lycopodopsida, Rhyniopsida, and Progymnosperms were represented in the land vegetation. Relative abundance of Geminospora lemurata and spores attributed to lycopodophytes imply domination of the land vegetation by lycopodohytes and progymnosperms.

Cites

No record.

References

Cite

APA: Copy

HASHEMI, S.H., & FAHIMI, M.. (2011). PALAEOECOLOGY OF THE LATE DEVONIAN PALYNOMORPHS, SOUTHWEST DAMGHAN. GEOSCIENCES, 20(79), 39-46. SID. https://sid.ir/paper/31543/en

Vancouver: Copy

HASHEMI S.H., FAHIMI M.. PALAEOECOLOGY OF THE LATE DEVONIAN PALYNOMORPHS, SOUTHWEST DAMGHAN. GEOSCIENCES[Internet]. 2011;20(79):39-46. Available from: https://sid.ir/paper/31543/en

IEEE: Copy

S.H. HASHEMI, and M. FAHIMI, “PALAEOECOLOGY OF THE LATE DEVONIAN PALYNOMORPHS, SOUTHWEST DAMGHAN,” GEOSCIENCES, vol. 20, no. 79, pp. 39–46, 2011, [Online]. Available: https://sid.ir/paper/31543/en

Related Journal Papers