Puneet Varma (Editor)

Eoagnostus

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Kingdom
  
Animalia

Class
  
Trilobita

Suborder
  
Agnostina

Rank
  
Genus

Phylum
  
Arthropoda

Order
  
Agnostida

Superfamily
  
Agnostoidea

Similar
  
Agnostidae, Agnostina, Pagetia, Lejopyge laevigata, Ptychagnostus

Eoagnostus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the terminal Lower Cambrian (Toyonian), until the earliest Middle Cambrian (earliest Kounamkites-zone, part of the lower Amgaian).

Contents

Distribution

  • E. roddyi terminal Lower Cambrian of the United States (Bonnia-zone, Kinzers Shale, Lancaster, New York; Pennsylvania; Vermont) and the early Middle Cambrian of Newfoundland, and Greenland (around the boundary of Ovatoryctocara-zone, Henson Gletscher Formation).
  • E. acrorhachis occurs in the terminal Lower Cambrian of the United States (Bonnia-zone, Hatch Hill, New York).

    • Description

    Almost identical to Archaeagnostus, but the frontal lobe of the central raised area of the cephalon (or glabella) is effaced, while the back of glabella is inflated.

    References

    Eoagnostus Wikipedia
    (Text) CC BY-SA


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