🧬 Biological Classification (Kingdom to Species)Megatherium americanum
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Xenarthra
Family
Megatheriidae
Genus
Megatherium
Species
Megatherium americanum
Megatherium (Megatherium americanum)🎨 Restoration

Restoration: R. Bruce Horsfall · Public domain · Wikimedia Commons Source

Life restorations are artistic reconstructions based on fossil evidence; true coloration and soft-tissue details remain uncertain.

Mammalia🌿 Herbivore

Megatherium

Megatherium americanum (Megatherium · Megatherium)

🛡️ Conservation Status (IUCN Red List)FOSSIL (Extinct Fossil)

Known only from fossils. The IUCN Red List assesses only species extant since 1500 CE, so fossil taxa are not assigned a category.

Geological Era
Miocene – Holocene (~8 MYA)
Diet
Herbivore
Length · Height
No data · 3.5m
Mass · Top Speed
4t · No data
Habitat & Fossil Locality
South America (Argentina, Uruguay, and Bolivia), Middle Pleistocene to early Holocene

💡 Everyday Comparisons for Size, Mass & Speed

  • 💡 Its standing height of 3.5 m is about 1.5 times the ceiling height of an apartment room (about 2.3 m) (Comparison). Its maximum weight of 4 tonnes is similar to that of a male elephant (Natural History Museum, London).
  • 💡 A cast of a Megatherium skeleton is on display at the Natural History Museum, London, and a 3D scan of a skull fossil collected by Charles Darwin during the voyage of the Beagle has been made publicly available.

Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.

📊 Mass & Speed Index (0–100)
⚖️ Mass Index (Blue Whale ~190 t = 100, log scale)80

Site-computed relative index from recorded values; not a formal scientific metric.

#메가테리움#Megatherium americanum

📖 1. Overview

Megatherium americanum (genus Megatherium) was a giant ground sloth that lived in South America; its name means 'great beast from America.' It was up to 10 times the size of living tree sloths.

🦴 2. Anatomy & Morphology

It could stand on its hind legs and was the largest bipedal mammal. Although it had large claws, chemical analysis of its teeth confirmed that it was a herbivore that ate plants.

🔍 3. Fossil Record & Paleoecology

First discovered in Argentina in 1787, its fossils come from strata dating between about 400,000 and about 8,000 years ago. It lived alongside humans, and cut marks remain on some fossil bones.

🇰🇷 4. Connection to Korea

No direct record connecting this species to Korea has been found.

📚 Sources & References

Recorded dimensions are widely cited representative estimates from public literature and may vary by study or specimen.

🔗 Related & Comparable Species

DATA & LICENSE

📚 Data & Image Sources and Licenses

Full Citation Principles →
① Photos: Wikimedia Commons

Every photo's author and license is verified via the Wikimedia Commons API (PD, CC0, CC BY, CC BY-SA) and displayed with full attribution and source links.

② Summaries: Wikipedia

Wikipedia summary excerpts on detail pages are licensed under CC BY-SA 4.0 and linked to the original article.

③ Measurements & IUCN Status

Length, mass, and speed are representative estimates from published literature. Conservation status follows IUCN Red List categories (iucnredlist.org).

④ Silhouettes & Scale Diagrams

Silhouettes on the size comparison stage use open-licensed PhyloPic illustrations and custom body diagrams drawn at an exact 1m = 1m scale.

Expert review: looking for reviewers · compiled by quoting official (English) sources

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