Triconodonta

Eutriconodonta is an order of early mammals. Eutriconodonts existed in Asia, Africa, Europe, North and South America during the Jurassic and the Cretaceous periods. The order was named by Kermack et al. in 1973 as a replacement name for the paraphyletic Triconodonta.

Triconodonta

Nobu Tamura ( http://spinops.blogspot.com ) · CC BY 3.0 · 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
Also called
triconodontPBDB
Sits inside
EotheriaPBDB
Diet
insectivorePBDB, for Mammaliaformes
Life habit
scansorialPBDB, for Mammaliaformes
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Mammalia

Time the record covers

At least 87 million years on record.

The record covers at least 170.9 Mya to 83.6 Mya. No occurrence read is dated outside 184.2 Mya to 72.2 Mya.

Early Jurassic — about 1 of 12 occurrencesEarly JurassicMiddle Jurassic — about 2 of 12 occurrencesMiddle JurassicLate Jurassic — about 8 of 12 occurrencesLate JurassicEarly Cretaceous — about 0 of 12 occurrencesLate Cretaceous — about 1 of 12 occurrencesLate Cretaceous186–183 Mya — about 0.1 occurrences183–179 Mya — about 0.3 occurrences179–175 Mya — about 0.3 occurrences175–171 Mya — about 0.3 occurrences171–167 Mya — about 0.8 occurrences167–163 Mya — about 1 occurrence155–151 Mya — about 1 occurrence151–148 Mya — about 4 occurrences148–144 Mya — about 3 occurrences144–140 Mya — about 0.3 occurrences85–82 Mya — about 0.2 occurrences82–78 Mya — about 0.3 occurrences78–74 Mya — about 0.3 occurrences74–70 Mya — about 0.1 occurrences170.9 Mya83.6 Mya186 Mya70 Mya

12 occurrences of Triconodonta on record, most of them in the Late Jurassic. 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

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

Morrison — 41.89°N, 106.00°WMorrison — 38.81°N, 108.32°WMorrison — 39.15°N, 108.77°WMorrison — 39.15°N, 108.77°WMorrison — 44.46°N, 104.73°WMorrison — 39.01°N, 111.02°WForest Marble — 50.71°N, 2.78°WForest Marble — 51.73°N, 1.98°WLourinhã — 39.22°N, 9.34°WKota — 19.27°N, 79.52°EBaruungoyot — 43.48°N, 101.22°E

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

Triconodonta and its relatives

Late Jurassic

Where Triconodonta and its relatives were recorded in the Late Jurassic.

Found in the same rock

173 taxa

The Paleobiology Database records 12 sites for Triconodonta, 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

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 content1

Picture of Triconodonta

Credit
Nobu Tamura ( http://spinops.blogspot.com )
Licence
CC BY 3.0
Commercial use
the licence allows it

No 3D scan of Triconodonta was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itEotheria through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Osborn 1888)