Marsupialia

New Latin, from Latin marsūpium, marsuppium (“pouch, purse”), from Ancient Greek μαρσύπιον (marsúpion) or μαρσύππιον (marsúppion), variants of μαρσίππιον (marsíppion), diminutive of μάρσιππος (mársippos, “bag, pouch”), +‎ -alia.

Marsupialia

1. A taxonomic infraclass within the subclass Theria – marsupials.

• (infraclass): Metatheria

• (infraclass): Eukaryota – superkingdom; Animalia – kingdom; Bilateria – subkingdom; Deuterostomia – infrakingdom; Chordata – phylum; Vertebrata – subphylum; Gnathostomata – infraphylum; Tetrapoda – superclass; Mammalia – class; Trechnotheria – subclass; Zatheria – infraclass; Theria – subclass

• Marsupial on Wikipedia.Wikipedia
• Marsupialia on Wikispecies.Wikispecies
• Category:Marsupialia on Wikimedia Commons.Wikimedia Commons
• Marsupialia at Integrated Taxonomic Information System.
• Metatheria at National Center for Biotechnology Information
• Ruggiero MA, Gordon DP, Orrell TM, Bailly N, Bourgoin T, Brusca RC, et al. (2015) A Higher Level Classification of All Living Organisms. PLoS ONE 10(4): e0119248. PMID 25923521, →DOI