POROSPHAERA (PORIFERA), A GLOBULAR SPONGE FROM THE UPPER JURASSIC OF THE CENTRAL IRAN
DOI:
https://doi.org/10.13130/2039-4942/5985Keywords:
Calcisponges, Systematics, Jurassic, IranAbstract
Porosphaera, an abundant small spherical calcisponge, well known from Cretaceous strata of Europe, was found in Middle and Upper Jurassic deposits of east-central Iran. This is the first record of Porosphaera from the Jurassic, except for a questionable occurrence of the genus from the Upper Jurassic of Canada, described by Jansa et al. (1982). The following species are new: P. regularis n. sp., P. biporata n. sp., P.? labyrinthica n. sp., and P.? asymmetrica n. sp.
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2011-11-30
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