Biology:Orthaulax

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Orthaulax is an extinct genus of sea snails in the family Strombidae.

Description

Orthaulax have spires and spiral lines, which vary based on species and age of the specimen. Initially, Orthaulax was thought to not show signs of variation in color, but it has later been discovered that colored patterns can be seen on non-eroded specimens of Orthaulax when they are shined with an ultraviolet light.[1]

Geology

Its fossils are most often found in areas with high lime content.[2] Examples of Orthaulax have been dated to the Oligocene and Miocene.[3]

Species

  • O. aguadillensis (Maury, 1920)[4]
  • O. altilis (Pilsbry, 1922)[5]
  • O. bermudezi (Clench and Aguayo, 1939)[6]
  • O. brasiliensis (Maury, 1925)[7][8]
  • O. caepa (Cooke, 1921)[9]
  • O. conoides (Woodring, 1923)[10][11]
  • O. dainellii (Savazzi, 1989)[12]
  • O. gabbi (Dall, 1890)[13]
  • O. hernandoensis (Mansfield, 1937)[14]
  • O. inornatus (Gabb, 1872)[15]
  • O. japonicus (Nagao, 1924)[16]
  • O. portoricoensis (Hubbard, 1921)[17]
  • O. pugnax (Heilprin, 1887)[18]
  • O. seaforthensis (Trechmann, 1941)[19]

References

  1. ↑ Vokes, Harold E; Vokes, Emily H (1968). "Variation in the Genus Orthaulax (Mollusca: Gastropoda)". Tulane Studies in Geology and Paleontology 6 (2). https://journals.tulane.edu/tsgp/article/view/477. Retrieved 21 June 2025. 
  2. ↑ Vokes, Harold E; Vokes, Emily H (1968). "Variation in the Genus Orthaulax (Mollusca: Gastropoda)". Tulane Studies in Geology and Paleontology 6 (2). https://journals.tulane.edu/tsgp/article/view/477. Retrieved 21 June 2025. 
  3. ↑ Wythe Cooke, C (1920). "Stratigraphic Significance of Orthaulax". Bulletin of the Geological Society of America 31. 
  4. ↑ "†Orthaulax aguadillensis Maury 1920 (snail)". https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=157471. 
  5. ↑ "†Orthaulax altilis Pilsbry 1922 (snail)". https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=157475. 
  6. ↑ "†Orthaulax bermudezi Clench and Aguayo 1939 (snail)". https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=157480. 
  7. ↑ "†Orthaulax brasiliensis Maury 1925 (snail)". https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=157477. 
  8. ↑ "Orthaulax brasiliensis ✝". https://www.mindat.org/taxon-8560284.html. 
  9. ↑ "†Orthaulax caepa Cooke 1921 (snail)". https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=157473. 
  10. ↑ "†Orthaulax conoides Woodring 1923 (snail)". https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=157476. 
  11. ↑ Monthly Catalogue, United States Public Documents. U.S. Government Printing Office. January 1924. p. 402. https://books.google.com/books?id=IzCpSHx_t3sC&q=Woodring%2C+1923&pg=PA402. Retrieved 31 March 2020. 
  12. ↑ "Orthaulax dainellii Savazzi, 1989". http://www.stromboidea.de/?n=Species.OrthaulaxDainellii. 
  13. ↑ "†Orthaulax gabbi Dall 1890 (snail)". https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=94697. 
  14. ↑ "†Orthaulax hernandoensis Mansfield 1937 (snail)". https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=157479. 
  15. ↑ "†Orthaulax inornatus Gabb 1872 (snail)". https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=109049. 
  16. ↑ "†Orthaulax japonicus Nagao 1924". https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=390903. 
  17. ↑ "†Orthaulax portoricoensis Hubbard 1921 (snail)". https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=157472. 
  18. ↑ "†Orthaulax pugnax Heilprin 1887 (snail)". https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=109243. 
  19. ↑ "Orthaulax seaforthensis Trechmann, 1941". http://www.stromboidea.de/?n=Species.OrthaulaxSeaforthensis. 

Wikidata ☰ Q107282739 entry



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