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Saccocoma pectinata Crinoid Fossil – A Fascinating Late Jurassic Specimen
This stunning Saccocoma pectinata crinoid fossil dates back to the Late Jurassic period, around 150 million years ago. It is preserved in a fine-grained limestone matrix, providing excellent detail of the fossil’s intricate structure.
Saccocoma pectinata is a unique species of free-floating crinoid, unlike most crinoids that are anchored to the seafloor. It once drifted in the shallow tropical seas that covered what is now Germany during the Jurassic period. This ancient marine creature had feathery arms that it used to filter tiny plankton from the water.
The matrix containing this fossil measures 10.5 cm in size. The fossil showcases the delicate, star-like structure of the Saccocoma pectinata, highlighting the fine details of its arms and body.
Saccocoma pectinata played a crucial role in the ancient marine ecosystem. By filtering plankton from the water, it contributed to the food web and helped in the deposition of carbonate sediments, which were essential to the formation of the limestone we find today.
