Streptichnus ichnofossils from the Marwar Supergroup: Tracing early Cambrian shallow-marine ecosystems
Year: 2025
Type: article
Abstract: The ichnogenus Streptichnus is a key component of Early Cambrian ichnofaunas, reflecting the increasing complexity of benthic behavior and animal substrate interactions during this evolutionary interval. In the Cambrian Nagaur Sandstone (Marwar Supergroup) of western India, Streptichnus occurs abundantly within shallow-marine siliciclastic facies, providing important evidence for the nature of the Early Cambrian biosphere in the Indian subcontinent. In this study, Streptichnus burrows from the Nagaur Sandstone, Marwar Supergroup are described and compared with occurrences from the Shibantan Member of the Dengying Formation in South China. Their morphology, distribution, and global significance highlight the role of tracemakers in substrate destabilization and ecospace expansion during the Early Cambrian.
Source: Evolving Earth
Author: S. Ahmad
Institution: Birbal Sahni Institute of Palaeosciences
Language: English
Subfield: Paleontology
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,050
OpenAlex ID: W7115561105