Macropetalichthys

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Macropetalichthys rapheidolabis
Temporal range: Early Devonian
Macropetalichthys rapheidolabis (fossil fish) (Columbus Limestone, Middle Devonian; Seneca Caverns, Ohio, USA) 8.jpg
Fossil
Scientific classification
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Macropetalichthys

Norwood & Owen, 1846
Type species
Macropetalichthys rapheidolabis
Synonyms [1]
  • AcanthaspisNewberry, 1875
  • HeintzaspisStrand, 1932
  • OhiodorulitesWhitley, 1933

Macropetalichthys is a genus of placoderm fish, named by Norwood and Owen in 1846. [2] [3] [4] The name "Macropetalichthys" means "armor-plated fish". It was assigned to Arthrodira by Woodward (1891); and to Petalichthida by Sepkoski (2002). The best known species in the genus is the type species, Macropetalichthys rapheidolabis. The type species was originally described from the Deputy Limestone (Devonian) of Indiana, but the specimen on which the name was based was destroyed by fire in 1891. [2] A neotype was designated by Babcock (2025) from the Delaware Limestone (Middle Devonian, Eifelian) of Columbus, Ohio, USA. [2] The species is moderately common in the Columbus Limestone of Ohio, and less common in the Onondaga Limestone of New York, the Silica Shale of Ohio, and in other Early–Middle Devonian formations of midwestern and eastern North America. Two other species are known from Germany.

Life restoration MacropetalichthysDB24.jpg
Life restoration

Species

Data from: [2] [1]

References

  1. 1 2 "Macropetalichthys". Global Biodiversity Information Facility .
  2. 1 2 3 4 Babcock, Loren E. (2025-06-30). "Type Crania of the Devonian Placoderm Macropetalichthys from North America: Resolving Key Nomenclatural and Stratigraphic Conundrums". Fishes. 10 (7): 309. doi:10.3390/fishes10070309. ISSN   2410-3888.{{cite journal}}: CS1 maint: unflagged free DOI (link)
  3. Van Valen, Leigh (1963). "The Head Shield of Macropetalichthys (Arthrodira)". Journal of Paleontology. 37 (1): 257–263. ISSN   0022-3360. JSTOR   1301427.
  4. Eastman, C. R. (1897). "On the Characters of Macropetalichthys" . The American Naturalist. 31 (366): 493–499. doi:10.1086/276635. ISSN   0003-0147. JSTOR   2452858.