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Own every card of: Other invertebrates.
Before bones and shells, there were soft bodies. Some 570 to 540 million years ago the Ediacaran fauna held the oldest large complex organisms. Many were shaped like fronds. Then came the Cambrian with its burst of new forms. Exceptional fossils there even kept the soft parts.
The start of their anecdote. The album's other cards are for you to discover in the game.
Walcott
This small soft-bodied animal probably swam freely in the Cambrian seas. Known specimens are 7.4 to 31.3 millimetres long. Its head bore two short tentacles, with two small fins on the sides and a flat tail.
Photo: Qohelet12 (CC BY-SA 4.0)
Elkanah Billings
A disk marked with concentric rings or rays running toward the centre, often with a small pimple in the middle. Most measure 4 to 10 mm across and the largest 180 mm.
Photo: Apokryltaros at English Wikipedia; crop by Rugoconites Tenuirugosus (CC BY 2.5)
Dunn et al.
Two goblets grew from a central stalk and the whole reached 20 cm. Each cup bore a crown of short flexible arms. It is potentially the earliest known animal predator.
Photo: F. S. Dunn, C. G. Kenchington, L. A. Parry, J. W. Clark, R. S. Kendall & P. R. Wilby (CC BY-SA 4.0)
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