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October 2, 2025Open Access

New Permian Echinoderms From Northeastern Oman Have Connections With Tethyan Echinoderm Faunas From West Timor, Western Australia, and Russia

Key Points

New species of blastoids and crinoids identified from Oman, contributing to the knowledge of Permian echinoderms.
Six blastoid species and 15 species-level crinoids were described, with several tied to existing genera.
These findings highlight the endemic nature of Oman’s echinoderm fauna while connecting to wider Tethyan echinoderm links.
The occurrence of Timoroblastus marks a significant finding, being the first evidence outside of Timor.

Abstract

Permian blastoids and crinoids are described from the Batain region in northeastern Oman. New collections are from the Qarari Unit and are dated as late Kungurian to early Roadian. Six blastoid species assigned to three genera, 15 species-level crinoids assigned to 14 genera (some with question), and several crinoid taxa left in open nomenclature are described. New taxa include Angioblastus qararii sp. nov.; A. omanensis sp. nov.; Deltoblastus sevastopuloi sp. nov.; Disgregacrinus aridus gen. nov., sp. nov.; Eoindocrinus ageri sp. nov.; E. spinosus sp. nov.; Jaramahcrinus warlichi gen. nov., sp. nov.; Proindocrinus riesae sp. nov.; Qararicrinus batainensis gen. nov., sp. nov.; Roemerocrinus? aridus sp. nov., and Synbathocrinus shackletoni sp. nov. Also, Platycrinites omanensis Webster however, at the species level, the fauna is largely endemic to Oman. The occurrence of Timoroblastus is the first verifiable report of this genus outside of Timor.

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