| 词条 | Asthenopsis |
| 释义 |
| name = Asthenopsis | status = fossil | fossil_range = Cambrian[1] | regnum = Animalia | phylum = Arthropoda | classis = Trilobita | ordo = | superfamilia = | familia = Ptychopariidae | genus = Asthenopsis | genus_authority = Whitehouse, 1939 }} Asthenopsis is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the Cambrian Period,[1] which lasted from approximately 542 to 488 million years ago. References1. ^1 {{cite journal |last=Sepkoski |first=Jack |authorlink= |coauthors= |title=A compendium of fossil marine animal genera (Trilobita entry) |journal=Bulletins of American Paleontology |volume=364 |issue= |pages=560 |publisher= |location= |year=2002 |url=http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=307&rank=class |doi= |id= |accessdate=2008-01-12 |deadurl=yes |archiveurl=https://web.archive.org/web/20060905162524/http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=307&rank=class |archivedate=September 5, 2006 }} {{Taxonbar|from=Q4810838}}{{Ptychopariida-stub}} 4 : Cambrian trilobites of Australia|Ptychopariida genera|Fossil taxa described in 1939|Ptychopariidae |
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