Palmichnium

Palmichnium ("palm trace") is an ichnofossil genus, interpreted as a eurypterid trackway. It has been found by many places around the world, such as Australia, Canada, United States or Wales.

Palmichnium
Temporal range: Silurian–Devonian
Trackway of P. palmatum at the Naturmuseum Senckenberg.
Trace fossil classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Order: †Eurypterida
Ichnogenus: †Palmichnium
Richter, 1954
Type ichnospecies
†Palmichnium palmatum
Richter, 1954

Its trackways consist of three or four subcircular tracks that are symmetrical around a midline impression that is arranged en echelon with a high angle to the midline.[1][2]

Ichnospecies

The ichnogenus contains eight ichnospecies.

  • P. antarcticum Gevers et al., 1971
  • P. capensis Anderson, 1975
  • ?P. culmicum Pfeiffer, 1968
  • P. kosinskiorum Briggs and Rolfe, 1983
  • P. macdonaldi Braddy, 1995
  • P. palmatum Richter, 1954 (type)
  • P. pottsae Braddy and Anderson, 1996
  • P. stoermeri Briggs and Rolfe, 1983
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References
  1. Spencer G. Lucas (2011). Traces of a Permian Seacoast. p. 24. ISBN 9780615471709.
  2. Adolf Seilacher (2007). "Arthropod trackways". Trace Fossil Analysis. Springer. pp. 18–31. ISBN 978-3-540-47225-4.


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