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A new species of Pygocephalomorpha (Eumalacostraca, Peracarida) from the Leitchfield Formation, Lower Carboniferous (Mississippian) of Grayson County, Kentucky, U.S.A.
Irham, M.; Schram, F.R.; Vonk, R. (2010). A new species of Pygocephalomorpha (Eumalacostraca, Peracarida) from the Leitchfield Formation, Lower Carboniferous (Mississippian) of Grayson County, Kentucky, U.S.A., in: Fransen, C.H.J.M. et al. (Ed.) (2010). Studies on Malacostraca: Lipke Bijdeley Holthuis memorial volume. Crustaceana. Monographs, 14: pp. 343-355
In: Fransen, C.H.J.M. et al. (Ed.) (2010). Studies on Malacostraca: Lipke Bijdeley Holthuis memorial volume. Crustaceana. Monographs, 14. Brill: Leiden. ISBN 978-90-04-17429-0 . 754 pp., more
In: Crustaceana. Monographs. Brill: Leiden. ISSN 1570-7024, more

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Keywords
    Fossils; New species; Pseudotealliocaris holthuisi Irham, Schram & Vonk, 2010 † [WoRMS]; Pygocephalomorpha † [WoRMS]; Marine

Authors  Top 
  • Irham, M.
  • Schram, F.R.
  • Vonk, R.

Abstract
    We describe a new species of pygocephalomorph eumalacostracan from the Leitchfield Formation, Mississippian (Lower Carboniferous) of Kentucky, U.S.A. The fossils display a well-developed cephalothorax, pleon, and tail fan, and they show greatest affinity with other species within Tealliocarididae, especially to species of Pseudotealliocaris. The new species, Pseudotealliocaris holthuisi, is a second taxon of tealliocarid from the American Lower Carboniferous, the other being P. palinscari from the Mississippian of Pennsylvania. We compare the new species to other known species in the family and provide an overview of pygocephalomorph evolution.

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