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Diplocraterion is an ichnogenus describing vertical U-shaped burrows having a spreite (weblike construction) between the two limbs of the U. The spreite of an individual Diplocraterion trace can be either protrusive (between the paired tubes) or retrusive (below the paired tubes). Some ichnospecies have both types (e.g., Diplocraterion yoyo). The presence/absence of funnel-shaped openings should not be used as an ichnotaxobase due to the high probability that the upper portions of the trace may have been eroded away. Observation of the orientation of Diplocraterion in the field is frequently used to determine the way up of rock strata at outcrop.

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  • Diplocraterion (en)
  • Diplocraterion (de)
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  • Diplocraterion (syn. Corophioides, Diplocraterium, Gabavermis, Polyupsilon) ist eine Gattung von Spurenfossilien (Ichnogenus). Es handelt sich um vertikale, U-förmige Grabgänge im Sediment. Kennzeichnend ist neben der charakteristischen Geometrie das Vorhandensein sogenannter , d. h. von linearen Strukturen, die außerhalb der und parallel zur eigentlichen Grabröhre verlaufen und deren vormalige Position im Sediment anzeigen. Diplocraterion kommt vor allem in siliziklastischen Ablagerungen verschiedener mariner Milieus ab dem Unterkambrium vor und gilt als Fress- und Wohnbau kleiner wirbelloser bilateraler Tiere. (de)
  • Diplocraterion is an ichnogenus describing vertical U-shaped burrows having a spreite (weblike construction) between the two limbs of the U. The spreite of an individual Diplocraterion trace can be either protrusive (between the paired tubes) or retrusive (below the paired tubes). Some ichnospecies have both types (e.g., Diplocraterion yoyo). The presence/absence of funnel-shaped openings should not be used as an ichnotaxobase due to the high probability that the upper portions of the trace may have been eroded away. Observation of the orientation of Diplocraterion in the field is frequently used to determine the way up of rock strata at outcrop. (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Tuscarora_Formation_Diplocraterion.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Diplocraterion_parallelum_-_Richter1926.gif
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  • Diplocraterion burrow from the Silurian-age Tuscarora Formation at Bald Eagle Mountain, Centre County, Pennsylvania. Specimen is ~22cm high. (en)
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  • Diplocraterion (en)
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  • Diplocraterion (syn. Corophioides, Diplocraterium, Gabavermis, Polyupsilon) ist eine Gattung von Spurenfossilien (Ichnogenus). Es handelt sich um vertikale, U-förmige Grabgänge im Sediment. Kennzeichnend ist neben der charakteristischen Geometrie das Vorhandensein sogenannter , d. h. von linearen Strukturen, die außerhalb der und parallel zur eigentlichen Grabröhre verlaufen und deren vormalige Position im Sediment anzeigen. Diplocraterion kommt vor allem in siliziklastischen Ablagerungen verschiedener mariner Milieus ab dem Unterkambrium vor und gilt als Fress- und Wohnbau kleiner wirbelloser bilateraler Tiere. (de)
  • Diplocraterion is an ichnogenus describing vertical U-shaped burrows having a spreite (weblike construction) between the two limbs of the U. The spreite of an individual Diplocraterion trace can be either protrusive (between the paired tubes) or retrusive (below the paired tubes). Some ichnospecies have both types (e.g., Diplocraterion yoyo). The presence/absence of funnel-shaped openings should not be used as an ichnotaxobase due to the high probability that the upper portions of the trace may have been eroded away. Observation of the orientation of Diplocraterion in the field is frequently used to determine the way up of rock strata at outcrop. There are several ichnospecies of Diplocraterion. (en)
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