Museum Dramatically-spined Kayserops megaspina Trilobite

Kayserops megaspina

Trilobites Order Phacopida, Subfamily Asteropyginae

Geological Time: Middle Devonian

Size (25.4 mm = 1 inch): Trilobite is 85 mm long (curve measure) by 73 mm wide at tips of genals on a 105 by 85 mm matrix

Fossil Site: Oued Ghris, Morocco

Code: 12108

Price: Sold

Kayserops megaspinaDescription: An elegant example of a member of the Order Phacopida, Subfamily Asteropyginae with many fine details present. Notice the fine eye facets present on this specimen. This one has been incorrectly called “Comura cometa” in the fossil trade, but is in fact Kayserops megaspina (for “big-spined”). The Asteropyginae recently have undergone revision. The trilobite called “Kayserops’ in the fossil trade is actually Metacanthina issoumourensis, a far more commonly-available member of the Asteropyginae. This specimen has been prepared with the flaring genal spines freestanding for a dramatic presentation of this uncommon taxon. Note the presence of axial spines; typically only nodes are preserved at best. See my other offerings for an example of another member of the genus.

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Kayserops megaspina


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