megatherian
Học thuậtThân thiện
Definition
Noun: A member of the extinct mammalian genus Megatherium or its family (Megatheriidae), characterized by massive size and skeletal adaptations for ground-dwelling life. These animals were a type of giant ground sloth.
Examples of Usage
- The fossilized remains of a megatherian were discovered in the sedimentary deposits, providing clues about Pleistocene ecosystems.
- Scientists study the bone structure of the megatherian to understand how such a large animal moved and fed.
- Compared to modern tree sloths, the megatherian was an enormous, terrestrial creature.
Advanced Usage
- The term is primarily used in paleontological and scientific contexts to classify and describe these specific extinct megafauna.
- It can be used attributively (like an adjective) to describe related concepts, e.g., "megatherian fossils" or "megatherian morphology."
Variants and Related Words
- Megatherium (n): The genus name for the most well-known type of megatherian.
- Megatheriid (n): Another term for a member of the family Megatheriidae; a synonym for megatherian.
- Ground sloth (n): The broader common name for the group of extinct sloths to which megatherians belong.
Synonyms
- Giant ground sloth
- Megatheriid
Notes on Meaning
- The word specifically refers to an extinct animal, not any living species.
- It denotes a particular taxonomic group (family or genus) within the larger order of ground sloths (Pilosa).
Noun
- a large extinct ground sloth