Megalochelys
Megalochelys is an extinct genus of tortoises that lived from the Miocene to Pleistocene. They are noted for their giant size, the largest known for any tortoise, with a maximum carapace length of over 2 m (6.5 ft) in M. atlas. The genus ranged from western India and Pakistan to as far east as Sulawesi and Timor in Indonesia, though the island specimens likely represent distinct species.

Jonathan Chen · CC BY-SA 4.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- TestudinidaePBDB
- Diet
- herbivore, herbivorePBDB, for Testudinidae
- Life habit
- ground dwellingPBDB, for Testudinidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Testudinidae
Time the record covers
At least 2.7 million years on record.
The record covers at least 5.333 Mya to 2.58 Mya. No occurrence read is dated outside 11.63 Mya to 11.7 ka.
14 occurrences of Megalochelys on record. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
14 occurrences- Miocene21%
- Pliocene36%
- Pleistocene42%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
5 formations
- Pinjor Formation · Siwalik Group3
- Walanae Formation2
- Piram Conglomerate Formation1
- Pucangan Formation1
- Kali Glagah Formation1
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The named rock units Megalochelys has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.
Found in the same rock
109 taxa- Hipparion4 sites
- Crocodylus3 sites
- Hexaprotodon3 sites
- Stegodon3 sites
- Archidiskodon celebensis2 sites
- Bovidae2 sites
- Brachypotherium2 sites
- Cervidae2 sites
- Chilotherium2 sites
- Crocodylia2 sites
- Emyda vittata2 sites
- Gavialis browni2 sites
- Geoclemys hamiltonii2 sites
- Gomphotherium2 sites
- Hardella thurjii2 sites
- Hippopotamodon2 sites
- Palatochelydia2 sites
- Sinomastodon bumiajuensis2 sites
- Aceratherium1 site
- Aceratherium perimense1 site
- Aetobatus1 site
- Alicornops1 site
- Alicornops complanatum1 site
- Anancus perimensis1 site
The Paleobiology Database records 12 sites for Megalochelys, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
11 references- The Late Neogene elephantoid-bearing faunas of Indonesia and their palaeozoogeographic implications. A study of the terrestrial faunal succession of Sulawesi, Flores and Java, including evidence for early hominid dispersal east of Wallace's Line3
- Neogene reptiles of northeastern Thailand and their paleogeographical significance2
- Evidences of cheloniophagy by early hominid (Homo erectus) during middle of pleistocene from beds of trinil’s layers in central Java (Indonesia), with an updated list of trinil’s testudines, and a redescription of Duboisemys isoclina (Dubois, 1908)1
- An Early Pleistocene giant tortoise (Reptilia ; Testudines ; Testudinidae) from the Bumiayu area, Central Java, Indonesia1
- Khoratpithecus piriyai, a Late Miocene hominoid of Thailand1
- Fossil mammals of the Upper Siwalik and the problem of the boundary between the Neogene and the Quaternary system in India1
- The vertebrate fauna from Piram Island, Gujarat, India1
- A giant land tortoise, Geochelone atlas (Falconer & Cautley), from the Pleistocene of Timor1
- Lydekker, 18891
- On the osteological characters and paleontological history of the Colossochelys atlas, a fossil tortoise of enormous size from the Tertiary strata of the Siwalik Hill in the north of India1
- On additional fossil species of the order Quadrumona from Siwaliks Hill1
Each of the 14 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content2
Picture of Megalochelys
- Source
- Wikipedia/Commons
- Credit
- Jonathan Chen
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
Structured light scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Megalochelys atlas · amnh:farb:6332
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itTestudinidae through timeThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Falconer and Cautley 1837