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Published: 2023-10-01 Category: Animals/Wildlife, Science Type: Photo Model release: No Property release: No
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Stems of Crinoids, or Sea Lilies, formed dense beds of ossicles when they disintegrated on death forming thick limestone deposits. These were formed 340 million years ago in a tropical marine seas.

Contributor: #220934327
ID : 2369165801
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TitleTypeSizeDPIFilesize
MedJPG1000 x 667px300dpi0.66 Mb.
SmallJPG500 x 334px300dpi0.17 Mb.
HugeJPG6000 x 4000px300dpi19.64 Mb.

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Keywords
minerals, habitat, sea lily, columnals, crinodea, extant, palaeontology, tube feet, sea mounds, silicates, worldwide, theca, cirri, fossil, ancient, feather stars, plate tectonics, articulated, encrinite, correlation, crinoids, bio stratigraphic, echinoderm, pattern, discs, calyx, equatorial, marine, stratigraphy, segments, bacterial mats, ordovician origins, holdfast, ossicles, shallow seas, dating, invertebrate, faunal succession, feeding apparatus, sedimentary rock, predators, metamorphic, carboniferous, deposition, strata, crinoidal limestone, environment, salthill quarry, survived 480 million years, zone fossil


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