The break-up of East Gondwana along the northeast coast 

of Oman: evidence from the Batain basin

Hauser, M.; Martini, Rossana; Matter, Albert; Krystyn, Leopold; Peters, Tjerk; Stampfli, Gérard M.; Zaninetti, Louisette

doi:10.1017/s0016756801006264

Cited by 21 publications

(12 citation statements)

References 44 publications

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“…The breakup of Pangea began during the Norian in the Late Triassic, and included the opening of parts of the western Tethys (Hauser et al, 2002). However, in southern Europe, the first rifting phases started in the Early Triassic, and carbonate platforms developed in the Calcareous Alps and the Inner Carpathians (Ciarapica, 2007;Golonka, 2007;Golonka et al, 2018).…”

Section: Europementioning

confidence: 99%

The temporal and spatial distribution of Triassic dinoflagellate cysts

Mangerud

Paterson

Riding

2019

Review of Palaeobotany and Palynology

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The records of dinoflagellate cysts from the Late Triassic, the time during which they first appear abundantly in the geological record, are reviewed. Most of the Triassic palynological literature pertains to terrestrial palynomorphs, thus it is challenging to establish a global picture of the temporal and spatial distribution of Late Triassic dinoflagellate cyst around the supercontinent of Pangea. Moreover, data on Late Triassic dinoflagellate cysts are dispersed, and there are currently no records of dinoflagellate cysts from many marine successions. With the exception of an Australian record of the dinoflagellate cyst Sahulidinium ottii from the late Mid Triassic, and a possible early Carnian occurrence of, among others, Rhaetogonyaulax in the Swiss Alps, cyst-forming dinoflagellates first appeared relatively synchronously around Pangea from the late Carnian. There are three to six species of pre-Norian species globally, whereas species richness exceeded 25 by the end of the Norian. During the Rhaetian, marine seaways had gradually opened due to sustained continental breakup, allowing the expansion of dinoflagellates into many European basins. New species are present, some known only from restricted areas, whereas others like Dapcodinium appear to have a global distribution. The majority of Triassic dinoflagellate cyst taxa do not extend into the Jurassic.

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Section: Europementioning

confidence: 99%

The temporal and spatial distribution of Triassic dinoflagellate cysts

Mangerud

Paterson

Riding

2019

Review of Palaeobotany and Palynology

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“…Their size varies from a metric to a kilometric scale. Palaeogeographically, the oceanic series of the Batain Plain were deposited in a distinct southern branch of the Neotethys that separated Arabia from India and Madagascar (Hauser et al 2002).…”

Section: Geological Contextmentioning

confidence: 99%

New data from Oman indicate benthic high biomass productivity coupled with low taxonomic diversity in the aftermath of the Permian–Triassic Boundary mass extinction

Brosse

Bucher

Baud³

et al. 2019

LET

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A new Early Triassic marine fauna is described from an exotic block (olistolith) from the Ad Daffah conglomerate in eastern Oman (Batain), which provides new insights into the ecology and diversity during the early aftermath of the Permian–Triassic Boundary mass extinction. Based on conodont quantitative biochronology, we assign a middle Griesbachian age to the upper part of this boulder. It was derived from an offshore seamount and yielded both nektonic and benthic faunas, including conodonts, ammonoids, gastropods and crinoid ossicles in mass abundance. This demonstrates that despite the stratigraphically near extinction at the Permian–Triassic Boundary, Crinoidea produced enough biomass to form crinoidal limestone as early as middle Griesbachian time. Baudicrinus, previously placed in Dadocrinidae, is now placed in Holocrinidae; therefore, Dadocrinidae are absent in the Early Triassic, and Holocrinidae remains the most basal crown‐group articulates, originating during the middle Griesbachian in the Tethyan Realm. Abundant gastropods assigned to Naticopsis reached a shell size larger than 20 mm and provide another example against any generalized Lilliput effect during the Griesbachian. Whereas the benthic biomass was as high as to allow the resumption of small carbonate factories, the taxonomic diversity of the benthos remained low compared to post‐Early Triassic times. This slow benthic taxonomic recovery is here attributed to low competition within impoverished post‐extinction faunas.

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“…The Batain nappes of eastern Oman comprise Permian-to-Cretaceous volcanic rocks and sediments (Immenhauser et al, 2000). Permian carbonate blocks with a rich bryozoan assemblage belong to the Lower Triassic Aseelah Unit of the Saal Formation (Hauser et al, 2002;Weidlich, 2007). The age of the blocks is under discussion.…”

Section: Age Stratigraphy and Paleoecologymentioning

confidence: 99%

“…The age of the blocks is under discussion. The oldest blocks could have a Sakmarian-Artinskian (Shackleton et al, 1990;Immenhauser et al, 2000;Hauser et al, 2002) or late Artinskian-Kubergandian age (D. Vachard, personal, comm.). Many blocks are dated as Guadalupian, based on smaller foraminifers and fusulinids (Vachard et al, 2001(Vachard et al, , 2002; also, a Lopingian block has been found (L. Krystyn, pers.…”

Section: Age Stratigraphy and Paleoecologymentioning

confidence: 99%