Amphidontidae

The Amphidontidae are a family of extinct mammals from the Early Jurassic to the Early Cretaceous, belonging to the eutriconodonts. It contains most of the species previously belonged to Amphilestidae.

No picture of Amphidontidae was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Amphidontidae, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
SymmetrodontaPBDB
Diet
insectivorePBDB, for Mammaliaformes
Life habit
scansorialPBDB, for Mammaliaformes
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Mammalia

Time the record covers

At least 49 million years on record.

The record covers at least 170.9 Mya to 121.4 Mya. No occurrence read is dated outside 184.2 Mya to 113.2 Mya.

Early Jurassic — about 1 of 7 occurrencesEarly JurassicMiddle Jurassic — about 0 of 7 occurrencesMiddle JurassicLate Jurassic — about 2 of 7 occurrencesLate JurassicEarly Cretaceous — about 4 of 7 occurrencesEarly Cretaceous186–183 Mya — about 0.1 occurrences183–181 Mya — about 0.2 occurrences181–178 Mya — about 0.2 occurrences178–176 Mya — about 0.2 occurrences176–173 Mya — about 0.2 occurrences173–171 Mya — about 0.2 occurrences156–154 Mya — about 0.2 occurrences154–151 Mya — about 0.4 occurrences151–149 Mya — about 0.4 occurrences149–146 Mya — about 0.4 occurrences146–144 Mya — about 0.4 occurrences144–141 Mya — about 0.1 occurrences127–124 Mya — about 0.4 occurrences124–122 Mya — about 0.6 occurrences122–119 Mya — about 0.9 occurrences119–117 Mya — about 0.9 occurrences117–114 Mya — about 0.9 occurrences114–112 Mya — about 0.4 occurrences170.9 Mya121.4 Mya186 Mya112 Mya

7 occurrences of Amphidontidae on record, most of them in the Early Cretaceous. 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

7 occurrences

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

3 formations

Ilek — 55.88°N, 88.00°EIlek — 56.64°N, 91.99°EMorrison — 41.89°N, 106.00°WKota — 19.27°N, 79.52°E

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The named rock units Amphidontidae has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Amphidontidae and its relatives

Early Cretaceous

Where Amphidontidae and its relatives were recorded in the Early Cretaceous.

Found in the same rock

153 taxa

The Paleobiology Database records 6 sites for Amphidontidae, 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

5 references

Each of the 7 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 content0

No picture of Amphidontidae was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Amphidontidae, or no answer at all. This entry cannot say which.

No 3D scan of Amphidontidae was found in MorphoSource and Sketchfab.

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 itSymmetrodonta through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Simpson 1925