• DOI:10.1111/j.1475-4983.2007.00746.x
Corpus ID: 62891048

THE OLDEST HORSESHOE CRAB: A NEW XIPHOSURID FROM LATE ORDOVICIAN KONSERVAT‐LAGERSTÄTTEN DEPOSITS, MANITOBA, CANADA

@inproceedings{Rudkin2008THEOH,
  title={THE OLDEST HORSESHOE CRAB: A NEW XIPHOSURID FROM LATE ORDOVICIAN KONSERVAT‐LAGERST{\"A}TTEN DEPOSITS, MANITOBA, CANADA},
  author={David M Rudkin and Graham A R Young and Godfrey S. Nowlan},
  year={2008}
}

David M Rudkin, Graham A R Young, Godfrey S. Nowlan

Published 2008

Geology

A remarkable new fossil horseshoe crab, Lunat- aspis aurora gen. et sp. nov., from recently discovered Upper Ordovician (c. 445 Ma) shallow marine Konservat-Lagerstat- ten deposits in Manitoba (Canada), is characterized by fusion of opisthosomal tergites into two sclerites. A broad mesosoma of six or seven fused segments, followed by a narrow metasoma of three reduced segments, represents an advanced transitional condition in the development of the xiphosurid thoracetron. Lunataspis further… CONTINUE READING

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