Luancaia igen. nov., a molting trace fossil

Research in Northern Spain yielded some spectacular Devonian trace fossils. While they may look superficially similar to classic resting traces like Rusophycus, they lack any scratch imprint and have a distinctive axial ridge. In fact, their morphology is strikingly similar to the dorsal side of the euarthropod Camptophyllia. Detailed research by Mangano and workers in Scientific Reports determined that these traces instead represent evidence of infaunal molting. Their new article formally describing these traces and the palaeoecologic and paleonenvironmental implications they hold is available for free until January 16th through this link:

Fig. 3

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