Rhenopterus

Extinct genus of Devonian organisms From Wikipedia, the free encyclopedia

Rhenopterus is an extinct prehistoric eurypterid. Fossils of Rhenopterus have been recovered from deposits of Lower Devonian age in Germany.[1]

Phylum:Arthropoda
Subphylum:Chelicerata
Order:Eurypterida
Superfamily:Rhenopteroidea
Quick facts Scientific classification, Type species ...
Rhenopterus
Temporal range: Lower Devonian, 409.1–402.5 Ma
Reconstruction of Rhenopterus diensti
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Order: Eurypterida
Superfamily: Rhenopteroidea
Family: Rhenopteridae
Genus: Rhenopterus
Størmer, 1936
Type species
Rhenopterus diensti
Størmer, 1936
Other species
  • R. macrotuberculatus Størmer, 1974
  • R. tuberculatus Størmer, 1936
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Description

Rhenopterids were small, characterized by scattered tubercules and knobs on the outer surface of the exoskeleton. Their first two (or possibly three) pairs of walking legs had spines; the last two pairs were long and powerful, without spines. The prosoma (head) was subtrapezoidal, with arcuate compound eyes on parallel axes. The male genital appendages were short with two distal spines.[2]

Species

Rhenopterus contains three valid species,[1] with other named species now seen as invalid or part of other genera.

  • Rhenopterus diensti Størmer, 1936 - Germany (Lower Devonian)
  • Rhenopterus macrotuberculatus Størmer, 1974 - Alken an der Mosel, Germany (Devonian)
  • Rhenopterus tuberculatus Størmer, 1936 - Germany (Devonian)

Invalid or reassigned species are listed below:

  • "Rhenopterus" latus Størmer, 1936 - Germany (Devonian), synonym of R. diensti.[1]
  • "Rhenopterus" sievertsi Størmer, 1969 - Germany (Devonian), reclassified as a species of Adelophthalmus.[3]

See also

References

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