Ameridelphia

marsupial superorder

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July 16, 2026

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Ameridelphia is a superorder of marsupials, primarily found in the Americas. These mammals are characterized by giving birth to underdeveloped young that continue their development attached to the mother's nipples, often within a pouch called a marsupium. While many marsupials are known for their pouches, this feature is not universal across all species.12

Ameridelphia includes about 70 species, mainly in South and Central America, with the Virginia opossum extending into North America. These marsupials fill diverse ecological niches, with some adapted for burrowing, others for terrestrial life, and some for arboreal or semiaquatic environments. Their diets vary widely, including insects, plants, and nectar. The term "Ameridelphia" distinguishes these American marsupials from the Australidelphia, which are found in Australasia.12

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marsupial
Classification
Superorder Ameridelphia (American opossums)75 or more species in 2 orders.Order Didelphimorphia (opossums)70 or more species in 1 family found in Central and South America, except for the Virginia opossum, which ranges as far north as southern Canada. Many species with unusual adaptations.
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Superorder Ameridelphia (American opossums)75 or more species in 2 orders.Order Didelphimorphia (opossums)70 or more species in 1 family found in Central and South America, except for the Virginia opossum, which ranges as far north as southern Canada. Many species with unusual adaptations.
Read More