International Journal of Histology and Cytology

ISSN 2756-3707

International Journal of Histology and Cytology ISSN 2756-3707 Vol. 13 (1), pp. 001-007, January, 2025. Available online at www.internationalscholarsjournals.org © International Scholars Journals

Full Length Research Paper

Unveiling Ancient Ecosystems: The Role of Soft-Bodied Metazoans and Microphytofossils in Mesoproterozoic Vindhyan Supergroup

Veeru Kant Singh1*, Rupendra Babu1, Prabhat Kumar2 and Manoj Shukla1†

1Birbal Sahni Institute of Palaeobotany, 53-University Road, Lucknow-226007, India.
2Department of Zoology, University of Lucknow-226007, India.

Accepted 24 November, 2024

An assemblage of microbial remains consisting two types of preservations are being recorded for the first time from the phosphoritic chert intercalated in Tirohan Limestone (Rohtas Limestone Formation) of Semri Group, Vindhyan Supergroup, exposed in Chitrakoot, Madhya Pradesh. The uniquely preserved, cryptic forms are multicellular, bilaterally symmetrical, monoecious, cylindrical elongated coiled body with clitellum and ornamented structures (setae). This assemblage shows possible biomineralized novel post embryonic developmental stages of the juvenile and young forms of the annelids. The dark brown organic-walled microfossils (prokaryote and protists) are sparse, cellularly preserved, distorted, small sized, simple sphaeromorphs. The present explored preliminary results are based on the Mesoproterozoic stray fossils of two bioentities in limited material, and are the authentic key events to consider remarkable potential value in understanding the evolution and divergence of the metazoan in India along with status of Indian subcontinents (geographic position) in geological past of world history. It is a team effort of the earth scientists (geologists, botanist, and zoologist) based on the extinct and extant annelids in present brief communication.

Key words: Soft bodied metazoan, annelid, clitellum, Mesoproterozoic, Tirohan limestone, Vindhyan.