Biostratigraphy and sedimentary settings of the Bajocian-Bathonian beds of the Izhma River basin (European North of Russia)

Митта, В. В.; Глинских, Л. А.; Kostyleva, V. V.; Dzyuba, O. S.; Шурыгин, Б. Н.; Nikitenko, B.L.

doi:10.1127/njgpa/2015/0507

Cited by 25 publications

(16 citation statements)

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“…Despite the fact that these finds were commonly referred as early Callovian (e.g. Gustomesov 1960a, Sachs & Nalnjaeva 1975, newest detailed biostratigraphic re-investigation has re-dated their age as probably the early-?middle Bathonian (Mitta et al 2015, de Lagausie & Dzyuba 2017. These forms, named P. ishmensis and P. timanensis (Fig.…”

Section: Relation To Other Megateuthididsmentioning

confidence: 99%

The first record of Late Jurassic megateuthidid belemnites - Chuvashiteuthis aenigmatica gen. et sp. nov. from the upper Kimmeridgian of Central Russia

Ипполитов¹,

Berezin²,

Rogov³

et al. 2017

Bull. Geosci.

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Section: Relation To Other Megateuthididsmentioning

confidence: 99%

The first record of Late Jurassic megateuthidid belemnites - Chuvashiteuthis aenigmatica gen. et sp. nov. from the upper Kimmeridgian of Central Russia

Ипполитов¹,

Berezin²,

Rogov³

et al. 2017

Bull. Geosci.

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“…Gleicheniidites is an important component of the Kulinda assemblage. Its lowermost occurrences are defined in Bathonian sediments dated by macro- and microfauna in the East-European Platform (Starchenko, 2010; Mitta et al, 2012). This taxon has also been reported in Bathonian siliciclastic sediments from northeastern Ukraine (Shevchuk, Slater & Vajda, 2018).…”

Section: Discussionmentioning

confidence: 99%

The rise of feathered dinosaurs:Kulindadromeus zabaikalicus, the oldest dinosaur with ‘feather-like’ structures

Cincotta

Pestchevitskaya

Sinitsa

et al. 2019

PeerJ

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Diverse epidermal appendages including grouped filaments closely resembling primitive feathers in non-avian theropods, are associated with skeletal elements in the primitive ornithischian dinosaur Kulindadromeus zabaikalicus from the Kulinda locality in south-eastern Siberia. This discovery suggests that “feather-like” structures did not evolve exclusively in theropod dinosaurs, but were instead potentially widespread in the whole dinosaur clade. The dating of the Kulinda locality is therefore particularly important for reconstructing the evolution of “feather-like” structures in dinosaurs within a chronostratigraphic framework. Here we present the first dating of the Kulinda locality, combining U-Pb analyses (LA-ICP-MS) on detrital zircons and monazites from sedimentary rocks of volcaniclastic origin and palynological observations. Concordia ages constrain the maximum age of the volcaniclastic deposits at 172.8 ± 1.6 Ma, corresponding to the Aalenian (Middle Jurassic). The palynological assemblage includes taxa that are correlated to Bathonian palynozones from western Siberia, and therefore constrains the minimum age of the deposits. The new U-Pb ages, together with the palynological data, provide evidence of a Bathonian age—between 168.3 ± 1.3 Ma and 166.1 ± 1.2 Ma—for Kulindadromeus. This is older than the previous Late Jurassic to Early Cretaceous ages tentatively based on local stratigraphic correlations. A Bathonian age is highly consistent with the phylogenetic position of Kulindadromeus at the base of the neornithischian clade and suggests that cerapodan dinosaurs originated in Asia during the Middle Jurassic, from a common ancestor that closely looked like Kulindadromeus. Our results consequently show that Kulindadromeus is the oldest known dinosaur with “feather-like” structures discovered so far.

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“…[18]: page 43]. According to Repin et al [13], the lower part of the Sysola Formation (Vezhay Formation) expresses a Late Aalenian-Bajocian age, while the upper part (Ochey Formation) falls into the Bathonian, although the contemporaneous Dreshchanka Formation (or upper Sysola Formation) in the Pechora Syncline was recently re-aged to the Late Bajocian on the basis of new ammonite findings [45,52,53]. Therefore, a Late Aalenian-Early Bajocian age for the Vezhayskoy stratum and a Late Bajocian-Bathonian age for the Ocheyskoy stratum seems quite reasonable.…”

Section: The Initial Middle Jurassic Exposure Of the Middle Russian Sea (Mrs)mentioning

confidence: 99%

Reconstructing the Early Exposure Regime of the Middle Russian Sea (Jurassic, Russian Platform)

2021

Geol Earth Mar Sci

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initially exposed. The period under consideration includes the Early to Late Jurassic (up to Oxfordian). Materials and MethodsSeveral paleogeographical reconstructions of the time interval of interest have been published over the past 50 years for the whole area [e.g. 8-9] or exclusively for the northern region [e.g., 10-15] of the Russian Platform. There are no published paleogeographical reconstructions that include the whole extension of the MRS for the time period of interest with temporal resolution other than on the order of geological ages (e.g. Callovian, Oxfordian) and sub-ages (Early, Middle, Late). Such reconstructions may have gaps of millions of years between them and rarely refer to sea level low-stands because they are normally intended to display the maximum extension of the sea. Therefore, they are unable to demonstrate ephemeral, shortlived interruptions of the seaways, which are of great importance for understanding the biogeographical evolution of the terrestrial biota. This is the main target of the current study. Major hiatuses in the Jurassic stratigraphy of the Russian Platform prevent exact estimations of the past extension of land-sea boundaries because it is not clear whether a phenomenal cease of deposition is due to a real contemporaneous pause or to erosion in later epochs as a result of subaerial exposure and/or scouring from subsequent transgressions. On the other hand, it is also difficult to know whether the eroded sectors in stratigraphical schemes are the result of uplifting or sea level fall. In order to better understand the stratigraphic schemes,

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Biostratigraphy and sedimentary settings of the Bajocian-Bathonian beds of the Izhma River basin (European North of Russia)

Cited by 25 publications

References 0 publications

The first record of Late Jurassic megateuthidid belemnites - Chuvashiteuthis aenigmatica gen. et sp. nov. from the upper Kimmeridgian of Central Russia

The first record of Late Jurassic megateuthidid belemnites - Chuvashiteuthis aenigmatica gen. et sp. nov. from the upper Kimmeridgian of Central Russia

The rise of feathered dinosaurs:Kulindadromeus zabaikalicus, the oldest dinosaur with ‘feather-like’ structures

Reconstructing the Early Exposure Regime of the Middle Russian Sea (Jurassic, Russian Platform)

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