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Article: New exceptionally preserved panarthropods from the Drumian Wheeler Konservat‐Lagerstätte of the House Range of Utah

Papers in Palaeontology - Volume 6 Issue 4 - Cover
Publication: Palaeontology
Volume: 6
Part: 4
Publication Date: November 2020
Page(s): 501 531
Author(s): Rudy Lerosey‐Aubril, Julien Kimmig, Stephen Pates, Jacob Skabelund, Andries Weug, and Javier Ortega‐Hernández
DOI: 10.1002/spp2.1307
Addition Information

How to Cite

LEROSEY‐AUBRIL, R., KIMMIG, J., PATES, S., SKABELUND, J., WEUG, A., ORTEGA‐HERNáNDEZ, J. 2020. . Papers in Palaeontology, 6, 4, 501-531. DOI: /doi/10.1002/spp2.1307

Author Information

  • Rudy Lerosey‐Aubril - Department of Organismic & Evolutionary Biology & Museum of Comparative Zoology Harvard University 26 Oxford Street Cambridge MA 02138 USA
  • Julien Kimmig - Biodiversity Institute University of Kansas Lawrence KS 66045 USA
  • Stephen Pates - Department of Organismic & Evolutionary Biology & Museum of Comparative Zoology Harvard University 26 Oxford Street Cambridge MA 02138 USA
  • Jacob Skabelund - 193 East 100 South Wellsville UT 84339 USA
  • Andries Weug - Schneidweg 15 63584 Gründau Germany
  • Javier Ortega‐Hernández - Department of Organismic & Evolutionary Biology & Museum of Comparative Zoology Harvard University 26 Oxford Street Cambridge MA 02138 USA

Publication History

  • Issue published online: 25 November 2020
  • Manuscript Accepted: 09 December 2019
  • Manuscript Received: 02 September 2019

Funded By

Wetmore Colles Fund. Grant Number: 30‐10-2019

Online Version Hosted By

Wiley Online Library
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Abstract

The Drumian Wheeler Konservat‐Lagerstätte of the House Range of Utah (Wheeler‐HR) has yielded one of the most diverse exceptionally preserved Cambrian biotas of North America. The discovery of soft‐bodied fossils invariably provides precious insights into this biota, given that most of its non‐biomineralizing components are known from very few specimens. This contribution describes some 30 new exceptionally preserved fossils of Wheeler panarthropods. Two new species are recognized, the radiodont Hurdia sp. nov. A and the megacheiran Kanoshoia rectifrons gen. et sp. nov. Along with a species of Leanchoilia,K. rectifrons represents the first confident megacheiran record in these strata. The presence of the radiodont genus Amplectobelua and the isoxyid species Isoxys longissimus is reported outside of the Burgess Shale in Laurentia. New specimens of Caryosyntrips serratus,Naraoia compacta,Messorocaris magna and Mollisonia symmetrica provide insights into the phylogenetic affinities, local spatial distribution and morphological variation of these species hitherto known by single specimens in the Wheeler‐HR. The same is true of new materials of the more common Pahvantia hastata and Perspicaris? dilatus. Formal descriptions of the order Mollisoniida ord. nov. and family Mollisoniidae fam. nov. are also provided. Last, the preservation of body structures other than the dorsal exoskeletons is illustrated for the first time in two common components of the fauna: the agnostid Itagnostus interstrictus and the bivalved euarthropod Pseudoarctolepis sharpi. The new material substantially improves our understanding of the diversity of the Wheeler‐HR biota, and provides new evidence of its distinctiveness relative to the Wheeler biota of the Drum Mountains.

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