BIZARRE Spathacalymene nasuta Trilobite

Spathacalymene nasuta

Trilobite Order Phacopida, Suborder Calymenina, Superfamily Calymenoidea, Family Calymenidae

Geological Time: Silurian, Niagaran Stage

Size: Trilobite is 15 mm long by 11 mm wide

Fossil Site: Ripley County, Indiana

Spathacalymene nasutaDescription: This is a fine juvenile example of the bizarre shovel-nosed trilobite Spathacalymene nasuta. Examples of this taxon are quite rarel; this is the first juvenile that I am aware of. The distinctive rostrum grows with age; a drawing of an adult specimen is shown below for comparison purposes.

click trilobite pictures to enlarge


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