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Cellicalichnus antiquus isp. nov., an Early – Middle Jurassic arthropod brood structure from the Shemshak Group of north-eastern Iran

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Abstract:

The new ichnospecies Cellicalichnus antiquus from upper Lower to lower Middle Jurassic strata of the Shemshak Group of north-eastern Iran consists of bundles of horizontal tunnels, from which at regular intervals elongate cells opposing each other emerge. The burrow has been constructed in floodplain deposits of a braided river system. It is interpreted as an arthropod brood structure of either insects, most likely hymenopterans, which may belong to the ancestral stock of soil-dwelling bees, or else of terrestrial crustaceans (crayfishes).

Keywords: ARTHOPODS; BROOD STRUCTURE; IRAN; LOWER JURASSIC; TRACE FOSSILS

Document Type: Research Article

DOI: http://dx.doi.org/10.1127/0077-7749/2009/0033

Publication date: April 1, 2010

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