- Macrogrammus
Taxobox
name = "Macrogrammus"
status = fossil
fossil_range = EarlyArenig [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 = p.560| publisher =| location =| date = 2002| url = http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=307&rank=class| doi =| id =| accessdate = 2008-01-12 ]
regnum =Animal ia
phylum =Arthropod a
classis =Trilobita
ordo =
superfamilia =
genus = "Macrogrammus""Macrogrammus" is an
extinct genus from a well known class offossil marinearthropod s, thetrilobite s. It lived during the early part of the Arenig stage of theOrdovician Period [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 = p.560| publisher =| location =| date = 2002| url = http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=307&rank=class| doi =| id =| accessdate = 2008-01-12 ] , afaunal stage which lasted from approximately 478 to 471 million years ago.References
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