Thalassinoides, burrows produced by thalassinideans, from the Middle Jurassic, Makhtesh Qatan, southern Israel
Trace fossil classification
Ichnogenus: Thalassinoides
Ehrenberg, 1944

Thalassinoides is an ichnogenus of trace fossil used to refer to "dichotomously or T-branched boxworks, mazes and shafts, unlined and unornamented".[1]:179 Facies of Thalassinoides increased suddenly in abundance at the beginning of the Mesozoic.[1]:251 Such burrows are made by a number of organisms, including the sea anemone Cerianthus, Balanoglossus and fishes, but are most closely associated with decapod crustaceans of the (former) infraorder Thalassinidea.[2]


  1. 1 2 Richard Granville Bromley (1996). Trace Fossils: Biology, Taphonomy and Applications (2nd ed.). Routledge. ISBN 978-0-412-61480-4.
  2. Paul M. Myrow (1995). "Thalassinoides and the enigma of Early Paleozoic open-framework burrow systems". Palaios. 10 (1): 58–74. JSTOR 3515007.

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