Abstract
An association of thalamid sponges including Amblysiphonella , Nevadathalamia , Stylothalamia, and Neoguadalupia , with the hexactinellid Casearia is described from the Upper Triassic (Norian-Rhaetian) Nayband Formation of Hambast-Mts. near the small town of Wali-Abad (Abadeh region, central Iran). These Norian-Rhaetian ( Neoguadalupia , Amblysiphonella , Nevadathalamia ) and Liassic ( Stylothalamia columnaris Le Maitre) thalamid sponge assemblages are exceptional associations, not previously reported from Iran nor from other localities in the world. The microfacies and organism associations in the sponge-bearing carbonates is discussed. Differences of macro- and microfaunal composition, as well as flora, support the recognition of Kristan-Tollmann et al. to classify the Nayband Formation in the Abadeh region as of a distinct unit, termed the Wali-Abad-Faziesregion. Following thalamid sponge species are described as new: Nevadathalamia waliabadensis n. sp. and Stylothalamia hambastensis n. sp.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
