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Science & TechnologySource: The Hindu

Discovery of Mosura Fentoni: An Ancient Marine Predator

Monday, 2 June 2025
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Key Points

The discovery of Mosura fentoni, a Cambrian-era marine predator, in Canada's renowned Burgess Shale offers groundbreaking insights into arthropod evolution. This matters for UPSC aspirants as it connects to GS Paper 3, focusing on Science & Technology. Last Updated: 2025-06-02

Key Facts About Mosura Fentoni

  • Mosura fentoni is a Cambrian-era sea creature.
  • Discovered in Canada’s Burgess Shale.
  • Existed between 541 million and 485.4 million years ago.
  • Challenges existing views on arthropod evolution.
  • Features advanced swimming and respiratory adaptations.
  • Suggests a link to modern insects and crustaceans.
  • Small but highly specialized radiodont.
  • Segmented body with a short neck and six paddle-shaped flaps for swimming.
  • Posterior trunk equipped with gills for respiration.
  • Displays early segment specialization crucial for arthropod diversity.

Significance of Cambrian Discoveries

The discovery of Mosura fentoni underscores the macro-level significance of Cambrian-era fossils in understanding evolutionary biology. It highlights the diversity of marine life during this period and provides insights into the evolutionary pathways leading to modern arthropods. This discovery aligns with India's strategic goals in scientific research and biodiversity conservation, contributing to global rankings in paleontological studies.

Related Government Schemes/Policies

  • National Biodiversity Action Plan: Aims to conserve India's biological diversity.
  • Science and Technology Policy: Encourages research and innovation in scientific fields.

UPSC Relevance

  • GS Paper 1: Indian Heritage and Culture, History and Geography of the World and Society - Evolutionary biology.
  • GS Paper 3: Science and Technology - Developments and their applications and effects in everyday life.
  • Prelims Angle: Questions on Cambrian period, Burgess Shale, and arthropod evolution.
  • Mains Angle: Analytical themes on evolutionary biology and its implications for biodiversity.
  • Essay Paper: Topics on scientific discoveries and their impact on human understanding.

FAQ Section

  • What is Mosura fentoni?

    Mosura fentoni is a Cambrian-era marine predator discovered in the Burgess Shale, known for its advanced adaptations in swimming and respiration.

  • Why is Mosura fentoni important?

    This discovery challenges current views on arthropod evolution and suggests a link to modern insects and crustaceans, providing new insights into evolutionary biology.

  • What are the key features of Mosura fentoni?

    Mosura fentoni had a segmented body with a short neck, six paddle-shaped flaps for swimming, and gills for respiration, showcasing early segment specialization.

Detailed Coverage

  • Mosura fentoni is a Cambrian-era sea creature.
  • Discovered in Canada’s Burgess Shale.
  • Existed between 541 million and 485.4 million years ago.
  • Challenges existing views on arthropod evolution.
  • Features advanced swimming and respiratory adaptations.
  • Suggests a link to modern insects and crustaceans.
  • Small but highly specialized radiodont.
  • Primitive relative of modern arthropods like insects, crabs, and spiders.
  • Segmented body with a short neck.
  • Has six paddle-shaped flaps for swimming.
  • Posterior trunk equipped with gills for respiration.
  • Displays early segment specialization crucial for arthropod diversity.
  • Radiodonts are ancient marine predators from the Cambrian period.
  • Considered early relatives of arthropods, but not direct ancestors.
  • Burgess Shale is a renowned fossil site from the Cambrian period.
  • The discovery provides new insights into early arthropod evolution.
  • Highlights the diversity of Cambrian marine life.
Science & Technology

Practice Questions

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1

The anatomical structure of a certain Cambrian organism includes a segmented body with features such as a short neck and six paddle-shaped flaps for locomotion. This description pertains to which ancient marine predator that illustrates early segment specialization crucial for arthropod diversity?