Leiopterella

Leiopterella
Temporal range: Early Devonian
Scientific classification
Kingdom:Animalia
Phylum:Arthropoda
Subphylum:Chelicerata
Order:†Eurypterida
Superfamily:†Rhenopteroidea
Family:†Rhenopteridae
Genus:†Leiopterella
Lamsdell, Braddy, Loeffler & Dineley, 2010
Type species
Leiopterella tetliei
Lamsdell, Braddy, Loeffler & Dineley, 2010

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 4 Lamsdell, James C.; Braddy, Simon J.; Loeffler, Elizabeth J.; Dineley, David L. (2010-10-27). "Early Devonian stylonurine eurypterids from Arctic Canada". Canadian Journal of Earth Sciences. 47 (11): 1405–1415. doi:10.1139/E10-053. ISSN 0008-4077.

See also

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