Apart from the crinoids
described in the paper, the same bed contained the cups of Eucalyptocrinites sp.
were abundant long ago, when they carpeted the sea floor.
are a bunch of marine invertebrates, known for their "somewhat cup-shaped body and five or more flexible and active arms" with feather-like appendages, (https://www.
The most common of these are crinoids
(sea lilies), snails, clam-like brachiopods, and ancestors of today's squids that had shells back then.
Apart from fusulinids, other fauna observed in Amb Formation includes brachiopods, bryozoans, crinoids
This formation is overlain by light to dark dolomite containing coral, sand and crinoids
, having less than 100 m thickness.
Gravel deposits in the creek primarily consist of siliceous lithologies including chert, jasper, geodes, agate, and silicified fossils such as bryozoans, crinoids
, corals, brachiopods, and rare cephalopods and trilobites.
Twenty-seven meters underwater we discovered an untrammeled paradise: Thousands of fish wove through brightly coloured coral peppered with striped crinoids
, small marine animals that hold their tentacles curved like flowers.
The marine organisms commonly associated with the carbonate materials deposition include; bivalves, gastropods, echinoids, crinoids
But after the Hangenberg event devastated fish species, crinoids
thrived, diversifying and multiplying.
The seas teemed with huge predatory fish such as Dunkleosteus, and smaller life forms such as trilobites and crinoids
Small corals patterned like honey bee combs, tiny rings from an unfathomable number of crinoids
, pieces of fossilized shells, and even the plain grey limestone tell the story of an ancient ocean filled with invertebrate life.