Rutgersella

Rutgersella
Temporal range: Early Silurian
Rutgersella truexi from the Early Silurian Shawangunk Formation of Delaware Water Gap, Pennsylvania
Scientific classification
Kingdom: incertae sedis
Genus: Rutgersella
Species
  • Rutgersella truexi

Rutgersella truexi is a form species for problematic fossils of Early Silurian age in Pennsylvania. It has been of special interest because of its morphological similarity with the iconic Ediacaran fossil Dickinsonia, and may have been a late surviving vendobiont.[1]

Petrographic thin section of Rutgersella truexi from Early Silurian Shawangunk Formation of Pennsylvania

Description

Rutgersella truexi is a flat segmented fossil, with both radial and bilateral symmetry like Dickinsonia, but with a shorter midline. The fossils are pyritized and with some internal chambers filled with chalcedony, so that internal chambers and basal rhizines are preserved. These observations suggest affinities with lichens, and perhaps the fungal phylum Glomeromycota.

References

  1. Retallack, G.J. (2015). "Reassessment of the problematic fossil Rutgersella as another post-Ediacaran vendobiont". Alcheringa. 39: 573–588. doi:10.1080/03115518.2015.1069483.
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