Goniatite Embedded in Shale Fossil | Natural Fossilized Pyritized in Host Rock | Fammenian - Devonian | Kowala Formation, Poland
$33.00 CAD
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This is a well-preserved goniatite preserved within dark shale from the Famennian-aged Kowala Formation of Poland. The fossil displays the characteristic coiled shell of a Devonian ammonoid, with visible whorls preserved in relief against the surrounding matrix. Specimens such as this represent marine cephalopods that inhabited the ancient seas covering the Holy Cross Mountains approximately 370 million years ago.
The Kowala section situated in the southern part of the Holy Cross Mountains represents continuous sedimentation in almost the same facies across the Devonian-Carboniferous transition. Fossils occur in black, pyritic shales, gray calcareous shales, clayey marls and light gray biohermal limestones. In most cases fossils are preserved as totally flattened imprints, sometimes tectonically deformed. However, in some lenses perfect, pyritized molds of gastropods, goniatites, bivalvias, clymenias were found. This part of the profile represents lower Famennian.
Although dinosaurs are the most well-known fossil life forms, pyritized fossils are also a favorite among those familiar with Paleontology (the study of the development of life on Earth) and are found in the rocks of all continents.
Name: Goniatite Fossil
Age: Fammenian (Devonian)
Location: Kowala Formation, Poland
Geological unit: Kielce-Lagow Syncline
Size: max matrix: 83x34 mm, max fossil: 16 mm / approx. 47.6 gr
All specimens are authentic with all provenance information provided.
Specimen Information Cards and/or Appraisals are provided when applicable.
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