Amyda
Amyda is a genus of softshell turtles in the family Trionychidae. It contains two extant species:Amyda cartilaginea - Asiatic softshell turtle ; Amyda ornata - Southeast Asian softshell turtle.

Samuel Lee · CC BY 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
- ChitriniPBDB
- Diet
- piscivore, carnivorePBDB, for Trionychidae
- Life habit
- aquatic, solitaryPBDB, for Trionychidae
- Motility
- actively mobilePBDB, for Trionychidae
- Environment
- brackish,freshwaterPBDB, for Trionychidae
Time the record covers
At least 72 million years on record.
The record covers at least 72.2 Mya to 11.7 ka. No occurrence read is dated outside 83.6 Mya to 0 Mya.
12 occurrences of Amyda on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. 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
12 occurrences- Late Cretaceous8%
- Eocene25%
- Pleistocene33%
- Holocene33%
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
4 formations
- Bridger Formation1
- Friars Formation · La Jolla Group1
- Sespe Formation1
- Tar Heel Formation · Black Creek Group1
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The named rock units Amyda has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 occurrences have no formation on record, which is common for older literature.
Amyda and its relatives
PleistoceneWhere Amyda and its relatives were recorded in the Pleistocene.
Found in the same rock
243 taxa- Batagur affinis5 sites
- Cuora amboinensis4 sites
- Heosemys4 sites
- Heosemys annandalii4 sites
- Malayemys macrocephala4 sites
- Heosemys grandis3 sites
- Siebenrockiella crassicollis3 sites
- Testudinidae3 sites
- Bubalus2 sites
- Capricornis sumatraensis2 sites
- Cervus unicolor2 sites
- Crocodylus siamensis2 sites
- Crocuta crocuta2 sites
- Cuon2 sites
- Gavialis bengawanicus2 sites
- Hystrix2 sites
- Indotestudo elongata2 sites
- Macaca2 sites
- Panthera tigris2 sites
- Pantrionychidae2 sites
- Rhinoceros sinensis2 sites
- Rhinoceros sondaicus2 sites
- Saniwa ensidens2 sites
- Stegodon insignis2 sites
The Paleobiology Database records 12 sites for Amyda, 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
8 references- The recent fossil turtle record of the central plain of Thailand reveals local extinctions4
- Summary of known occurrences of terrestrial vertebrates from Eocene strata of southern California2
- Neogene reptiles of northeastern Thailand and their paleogeographical significance1
- First discovery of Megalovis guangxiensis and Alligator cf. sinensis in Guangdong1
- Quaternary mammalian fossils discovered in southern Jiangxi Province1
- The Cretaceous formations1
- Die fossilen Schildkröten von Trinil1
- The fossil turtles of North America1
Each of the 12 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 Amyda
- Source
- Wikipedia/Commons
- Credit
- Samuel Lee
- Licence
- CC BY 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
- Amyda cartilaginea · zmuc:rept:Uninv_240
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
- Source
- Wikipedia, “Amyda”
- 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 itChitrini through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Geoffroy Saint-Hilaire 1809)