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The anchor-shaped Ediacaran organism Parvancorina from Marwar Supergroup, India

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Abstract

The present investigation documents and describes the anchor-shaped Ediacaran organisms assigned to Parvancorina (cf. P. minchami) on the sandstone bedding plane of Sonia Formation of Marwar Supergroup in India. This is the first report of Parvancorina organisms from India. Specimens are preserved as small, rounded to ovate, posterior shield-shaped impressions with an anterior-lateral widened portion and a posterior anchor-shaped structure. P. minchami shows both positive and negative relief preservation modes. In Sonia Formation, the recovered P. minchami specimens have been found in size ranges of 1.5 × 1.5 to 3.0 × 3.5 cm2 (length × width), suggesting preservation of adult and larger forms.

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Acknowledgements

The authors are extremely grateful to anonymous reviewers for their critical review and constructive suggestions to improve the manuscript. We are highly thankful to Dr Surja Ram Jakhar, Head (Geology), for allocating the required laboratory space for this study. Additionally, we appreciate the field help by Mr Pushpendra Rathore and Mr Prakash Bishnoi.

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Authors and Affiliations

  1. Department of Geology, Jai Narain Vyas University, Jodhpur, 342 005, Rajasthan, India

    Virendra S Parihar, Hukma R Chouhan, P Kumar & A Harsh

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  1. Virendra S Parihar
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  2. Hukma R Chouhan
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  3. P Kumar
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Contributions

Virendra S Parihar: Supervision, writing and finalized the original draft; Hukma R Chouhan: Fieldworks (sampling and data collections); P Kumar: Fieldworks (photography and data collections); A Harsh: Field and technical works.

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Correspondence to Virendra S Parihar.

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Communicated by Rajeev Patnaik

Corresponding editor: Rajeev Patnaik

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Parihar, V.S., Chouhan, H.R., Kumar, P. et al. The anchor-shaped Ediacaran organism Parvancorina from Marwar Supergroup, India. J Earth Syst Sci 132, 187 (2023). https://doi.org/10.1007/s12040-023-02205-y

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