Goniatite, Clymenia, Bivalvia Fossil | Natural Fossilized Pyritized in Host Rock | Fammenian - Devonian | Kowala Formation, Poland | SO24
$221.50 CAD
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Name: Goniatite, Clymenia, Bivalvia Fossil
Age: Fammenian (Devonian)
Location: Kowala Formation, Poland
Geological unit: Kielce-Lagow Syncline data-mce-fragment="1">
Size: max matrix: 80 x 60 mm, max fossil: 21 mm - approx. 239 gr
This is a nice group of fossilized and pyritized mollusks and ammonite in host rock from Kowala, Poland. Trilobites are the most diverse group of extinct animals preserved in the fossil record. Nine orders of trilobite are recognized, into which 15,000+ species are placed. It is probably going to be one of the rarest collection items you'll ever own.
Goniatids, (3) informally goniatites, are ammonoid cephalopods that form the order Goniatitida, derived from the more primitive Agoniatitida during the Middle Devonian some 390 million years ago. Goniatites survived the Late Devonian extinction to flourish during the Carboniferous and Permian only to become extinct at the end of the Permian some 139 million years later.
Clymenia (1) is a genus in the ammonoid order Clymeniida, restricted to the Upper Devonian, characterized as with all clymeniids by a dorsal siphuncle that runs along the inside of the whorls, unusual for ammonoids.
Bivalvia, (1) in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bivalves have no head and they lack some usual molluscan organs, like the radula and the odontophore. They include the clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater.
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.
Goniatite, Clymenia, Bivalvia Fossil | Natural Fossilized Pyritized in Host Rock | Fammenian - Devonian | Kowala Formation, Poland | SO24
Name: Goniatite, Clymenia, Bivalvia Fossil
Age: Fammenian (Devonian)
Location: Kowala Formation, Poland
Geological unit: Kielce-Lagow Syncline data-mce-fragment="1">
Size: max matrix: 80 x 60 mm, max fossil: 21 mm - approx. 239 gr
This is a nice group of fossilized and pyritized mollusks and ammonite in host rock from Kowala, Poland. Trilobites are the most diverse group of extinct animals preserved in the fossil record. Nine orders of trilobite are recognized, into which 15,000+ species are placed. It is probably going to be one of the rarest collection items you'll ever own.
Goniatids, (3) informally goniatites, are ammonoid cephalopods that form the order Goniatitida, derived from the more primitive Agoniatitida during the Middle Devonian some 390 million years ago. Goniatites survived the Late Devonian extinction to flourish during the Carboniferous and Permian only to become extinct at the end of the Permian some 139 million years later.
Clymenia (1) is a genus in the ammonoid order Clymeniida, restricted to the Upper Devonian, characterized as with all clymeniids by a dorsal siphuncle that runs along the inside of the whorls, unusual for ammonoids.
Bivalvia, (1) in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bivalves have no head and they lack some usual molluscan organs, like the radula and the odontophore. They include the clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater.
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.
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