Diplocraterion is an ichnogenus describing vertical U-shaped burrows having a spreite (weblike construction) between the two limbs of the U. The spreite of fainter U-shaped traces appears above and below the final tunnel, made as the organism moved up and down through the sediment.
Further reading
- Šimo V. & Olšavský M. (2007). Diplocraterion parallelum Torell, 1870, and other trace fossils from the Lower Triassic succession of the Drienok Nappe in the Western Carpathians, Slovakia". Bulletin of Geosciences 82(2): 165-173. doi:10.3140/bull.geosci.2007.02.165.
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