Pachyduvalia Explained

Pachyduvalia is a genus of belemnite, an extinct group of cephalopods.[1]

See also

References

  1. Sepkoski . Jack . A compendium of fossil marine animal genera (Cephalopoda entry) . Bulletins of American Paleontology . 364 . 560 . 2002 . 2009-04-10 . 2016-02-25 . https://web.archive.org/web/20160225225905/http://strata.geology.wisc.edu/jack/showgenera.php?taxon=231&rank=class . dead .

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