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词条 Leiopterella
释义

  1. Description

  2. Classification

  3. References

  4. See also

{{Italic title}}{{Automatic taxobox|display_parents=2|taxon=Leiopterella|authority=Lamsdell, Braddy, Loeffler & Dineley, 2010|fossil_range={{fossil_range|Early Devonian}}|image=|image_caption=|type_species=Leiopterella tetliei|type_species_authority=Lamsdell, Braddy, Loeffler & Dineley, 2010|subdivision_ranks=|subdivision=|synonyms=}}Leiopterella is a genus of prehistoric eurypterid of the family Rhenopteridae. It contains one species, Leiopterella tetliei, from the Early Devonian of Nunavut, Canada.[1] The name derives from the Greek leios (meaning "smooth") and pteros (meaning "wing", a suffix traditionally applied to many eurypterid genera). The species name honors Dr. O. Erik Tetlie for his contributions to the study of fossil eurypterids.[2]

Description

Leiopterella is defined as a rhenopterid with a turbinate carapace lacking a cuticular sculpture. The ventral sutures resemble those of Eurypterus and the gnathobases are large and robust. The genus possesses a short type-B genital appendage with a bi-lobed termination.[2]

The holotype (and only published) specimen, CMN 53573, measures 37 mm long and 29 mm wide and consists of the prosoma, four opisthosomal segments, a faintly preserved metasoma, portions of the prosomal appendages and the genital appendage.[2]

Classification

Leiopterella is classified as a rhenopterid closely related to Rhenopterus and more derived than basal rhenopterids such as Brachyopterus and Brachyopterella.[2]

References

1. ^Dunlop, J. A., Penney, D. & Jekel, D. 2015. A summary list of fossil spiders and their relatives. In World Spider Catalog. Natural History Museum Bern, online at http://wsc.nmbe.ch, version 16.0 http://www.wsc.nmbe.ch/resources/fossils/Fossils16.0.pdf (PDF).
2. ^1 2 3 {{Cite journal|last=Lamsdell|first=James C.|last2=Braddy|first2=Simon J.|last3=Loeffler|first3=Elizabeth J.|last4=Dineley|first4=David L.|date=2010-10-27|title=Early Devonian stylonurine eurypterids from Arctic Canada|url=http://www.nrcresearchpress.com/doi/abs/10.1139/E10-053|journal=Canadian Journal of Earth Sciences|volume=47|issue=11|pages=1405–1415|doi=10.1139/E10-053|issn=0008-4077}}

See also

  • List of eurypterids
{{Eurypterida}}

3 : Devonian eurypterids|Fossils of Canada|Eurypterids of North America
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