megatheriid

Thân thiện

A paleontologist carefully examines the fossilized skeleton of a megatheriid.

Definition

Noun: A member of the extinct family Megatheriidae, which consisted of very large, ground-dwelling sloths. These prehistoric mammals were characterized by their massive size, robust skeletons, and herbivorous diet. They lived primarily in the Americas during the Pliocene and Pleistocene epochs.

Usage Examples

• The megatheriid, known as , was one of the largest land mammals of its time.
• Fossils of the megatheriid provide evidence about the fauna of prehistoric South America.
• Scientists study the bone structure of the megatheriid to understand how it moved and fed.

Advanced Usage

• The term is used almost exclusively in scientific contexts, such as paleontology, zoology, and discussions of prehistoric life.
• It can be used attributively (like an adjective) to describe related concepts, e.g., "megatheriid fossils" or "megatheriid morphology."

Variants and Related Words

• Megatheriidae (proper noun): The scientific family name to which the megatheriid belongs.
• Megatherium (proper noun): The type genus of the Megatheriidae family, often used informally to refer to a specific, well-known megatheriid.
• Ground sloth (noun): A broader common name for extinct sloths in several families, including the megatheriids.
• Megatherian (noun/adjective): A less common synonym for megatheriid, or used as an adjective meaning "relating to megatheriids."

Synonyms

• Giant ground sloth
• Megatherian (scientific synonym)

Notes on Meaning

The word "megatheriid" has a single, specific scientific meaning. It does not have idiomatic or phrasal verb uses, as it refers to a fixed taxonomic group of extinct animals.

Học thuật

Noun

1. a large extinct ground sloth

Từ đồng nghĩa

• megatherian
• megatherian mammal