Mammaliaformes

Mammaliaformes is a clade of synapsid tetrapods that includes the crown group mammals and their closest extinct relatives; the group radiated from earlier probainognathian cynodonts during the Late Triassic. It is defined as the clade originating from the most recent common ancestor of Morganucodonta and the crown group mammals; the latter is the clade originating with the most recent common ancestor of extant Monotremata, Marsupialia and Placentalia. Besides Morganucodonta and the crown group mammals, Mammaliaformes also includes Docodonta and Hadrocodium.

Mammaliaformes

Theklan FunkMonk Nobu Tamura ( http://spinops.blogspot.com ) Nobu Tamura ( http://spinops.blogspot.com ) JJ Harrison… · 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
mammaliaformPBDB
Sits inside
MammaliamorphaPBDB
Diet
insectivorePBDB
Life habit
scansorialPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At least 205 million years on record.

The record covers at least 205.7 Mya to 11.7 ka. No occurrence read is dated outside 227.3 Mya to 0 Mya.

Late Triassic — about 1 of 12000 occurrencesLate TriassicEarly Jurassic — about 2 of 12000 occurrencesEarly JurassicMiddle Jurassic — about 0 of 12000 occurrencesLate Jurassic — about 0 of 12000 occurrencesEarly Cretaceous — about 31 of 12000 occurrencesEarly CretaceousLate Cretaceous — about 1294 of 12000 occurrencesLate CretaceousPaleocene — about 4116 of 12000 occurrencesEocene — about 5983 of 12000 occurrencesEoceneOligocene — about 37 of 12000 occurrencesMiocene — about 342 of 12000 occurrencesPliocene — about 81 of 12000 occurrencesPleistocene — about 97 of 12000 occurrences232–224 Mya — about 0.1 occurrences224–216 Mya — about 0.4 occurrences216–209 Mya — about 0.4 occurrences209–201 Mya — about 0.4 occurrences201–193 Mya — about 2 occurrences193–185 Mya — about 0.0 occurrences131–124 Mya — about 0.7 occurrences124–116 Mya — about 9 occurrences116–108 Mya — about 14 occurrences108–100 Mya — about 7 occurrences100–93 Mya — about 129 occurrences93–85 Mya — about 40 occurrences85–77 Mya — about 225 occurrences77–70 Mya — about 470 occurrences70–62 Mya — about 1839 occurrences62–54 Mya — about 4827 occurrences54–46 Mya — about 3770 occurrences46–39 Mya — about 49 occurrences39–31 Mya — about 54 occurrences31–23 Mya — about 26 occurrences23–15 Mya — about 32 occurrences15–7.7 Mya — about 249 occurrences7.7–0 Mya — about 255 occurrences205.7 Mya11.7 ka232 Mya0 Mya

12,000+ occurrences of Mammaliaformes on record. 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

12,000 occurrences read

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. The read hit its cap, so every figure above is a floor and the shares are of the occurrences read. More on what this infers.

Found in

at least 165 formations

Willwood — 44.78°N, 108.97°WWillwood — 44.30°N, 109.00°WWillwood — 44.82°N, 109.05°WWillwood — 43.95°N, 107.57°WWillwood — 44.50°N, 108.00°WWillwood — 44.00°N, 108.00°WWillwood — 44.65°N, 108.54°WWillwood — 44.60°N, 108.32°WWillwood — 44.64°N, 108.43°WWillwood — 44.53°N, 108.39°WWillwood — 44.53°N, 108.32°WWillwood — 44.65°N, 109.93°WWillwood — 44.59°N, 108.86°WWillwood — 44.49°N, 108.54°WWillwood — 44.42°N, 108.69°WWillwood — 44.38°N, 108.80°WWillwood — 44.44°N, 108.63°WWillwood — 44.49°N, 108.81°WWillwood — 44.50°N, 108.67°WWillwood — 44.56°N, 108.70°WWillwood — 44.59°N, 108.62°WWillwood — 44.65°N, 108.76°WFort Union — 47.60°N, 107.00°WFort Union — 47.10°N, 104.80°WFort Union — 47.80°N, 106.10°WFort Union — 43.85°N, 108.35°WFort Union — 43.70°N, 108.70°WFort Union — 44.30°N, 109.00°WFort Union — 46.05°N, 104.48°WFort Union — 45.80°N, 104.40°WFort Union — 41.70°N, 109.00°WFort Union — 41.30°N, 107.74°WFort Union — 44.50°N, 108.00°WFort Union — 45.80°N, 109.80°WFort Union — 46.70°N, 101.80°WFort Union — 48.50°N, 101.90°WFort Union — 46.90°N, 101.50°WFort Union — 46.59°N, 101.74°WFort Union — 46.90°N, 103.90°WFort Union — 45.80°N, 110.50°WFort Union — 44.72°N, 108.38°WFort Union — 44.68°N, 108.32°WFort Union — 45.20°N, 109.00°WFort Union — 44.89°N, 108.93°WFort Union — 43.20°N, 107.10°WFort Union — 45.10°N, 106.90°WFort Union — 45.40°N, 105.60°WFort Union — 43.45°N, 109.16°WFort Union — 41.92°N, 108.56°WFort Union — 44.72°N, 108.62°WFort Union — 43.20°N, 108.20°WWasatch — 41.80°N, 110.70°WWasatch — 41.27°N, 110.33°WWasatch — 43.25°N, 110.42°WWasatch — 42.70°N, 110.10°WWasatch — 40.60°N, 108.10°WWasatch — 41.70°N, 109.00°WWasatch — 41.80°N, 107.00°WWasatch — 41.20°N, 110.50°WWasatch — 43.20°N, 108.20°WWasatch — 40.00°N, 107.90°WWasatch — 42.07°N, 109.10°WDeBeque — 40.00°N, 107.90°WDeBeque — 39.20°N, 108.20°WDeBeque — 39.27°N, 108.18°WDeBeque — 39.70°N, 107.60°WDeBeque — 38.70°N, 107.60°WWind River — 43.20°N, 107.10°WWind River — 44.00°N, 106.60°WWind River — 43.20°N, 108.20°WWind River — 41.60°N, 105.80°WWind River — 41.80°N, 107.00°WHell Creek — 47.63°N, 106.20°WHell Creek — 47.55°N, 107.12°WHell Creek — 47.62°N, 107.32°WHell Creek — 47.60°N, 107.00°WHell Creek — 47.80°N, 106.10°WHell Creek — 47.65°N, 106.65°WHell Creek — 47.52°N, 106.98°WHell Creek — 46.30°N, 104.50°WHell Creek — 47.57°N, 107.10°WHell Creek — 45.50°N, 103.10°WHell Creek — 47.52°N, 106.40°WHell Creek — 47.60°N, 106.38°WHell Creek — 47.58°N, 106.30°WHell Creek — 47.55°N, 107.25°WHell Creek — 47.87°N, 106.18°WHell Creek — 47.52°N, 107.18°WHell Creek — 47.53°N, 106.92°WHell Creek — 47.65°N, 106.20°WHell Creek — 47.07°N, 106.92°WHell Creek — 47.10°N, 104.80°WHell Creek — 47.70°N, 106.55°WHell Creek — 47.73°N, 106.50°WHell Creek — 45.40°N, 105.60°WHell Creek — 46.10°N, 103.30°WHell Creek — 47.60°N, 107.23°WHell Creek — 47.68°N, 106.43°WHell Creek — 46.90°N, 101.50°WHell Creek — 47.80°N, 106.21°WNacimiento — 36.30°N, 108.20°WNacimiento — 36.31°N, 108.00°WNacimiento — 35.70°N, 107.00°WNacimiento — 36.57°N, 107.97°WNacimiento — 36.18°N, 107.58°WNacimiento — 36.27°N, 107.76°WBridger — 42.70°N, 110.10°WBridger — 41.20°N, 110.50°WBridger — 41.50°N, 110.60°WBridger — 41.70°N, 109.00°WPaskapoo — 51.00°N, 114.10°WPaskapoo — 51.90°N, 113.30°WPaskapoo — 53.23°N, 114.70°WPaskapoo — 52.40°N, 113.80°WPaskapoo — 52.30°N, 113.80°WPaskapoo — 52.20°N, 113.70°WPaskapoo — 51.10°N, 114.50°WPaskapoo — 51.18°N, 114.43°WPaskapoo — 52.60°N, 114.10°WPaskapoo — 52.00°N, 114.30°WPaskapoo — 52.20°N, 113.60°WPaskapoo — 51.50°N, 112.30°WPaskapoo — 52.40°N, 116.10°WPaskapoo — 54.80°N, 115.46°WPaskapoo — 54.80°N, 115.80°WPaskapoo — 51.20°N, 112.50°WLance — 43.18°N, 104.53°WLance — 43.00°N, 104.50°WLance — 43.10°N, 104.60°WLance — 41.57°N, 108.67°WLance — 43.15°N, 104.57°WLance — 43.25°N, 104.65°WLance — 44.94°N, 108.85°WLance — 43.30°N, 104.37°WLance — 43.13°N, 104.49°WLance — 43.25°N, 104.52°WLance — 43.80°N, 104.62°WSan Jose — 36.50°N, 107.00°WSan Jose — 35.70°N, 107.00°W"Wasatch" — 44.50°N, 108.00°W"Wasatch" — 40.20°N, 109.90°W"Wasatch" — 44.00°N, 106.60°W"Wasatch" — 43.90°N, 105.70°WFerris — 41.94°N, 106.88°WFerris — 41.80°N, 107.00°WFerris — 41.96°N, 106.89°WFerris — 41.94°N, 106.85°WNorth Horn — 39.00°N, 111.00°WNorth Horn — 39.17°N, 111.27°WNorth Horn — 39.10°N, 111.80°WRavenscrag — 49.50°N, 109.20°WRavenscrag — 49.60°N, 108.70°WRavenscrag — 49.70°N, 110.10°WRavenscrag — 49.06°N, 102.75°WJudith River — 47.70°N, 110.70°WJudith River — 46.42°N, 109.27°WJudith River — 48.92°N, 110.58°WJudith River — 46.46°N, 109.41°WJudith River — 48.57°N, 109.68°WJudith River — 47.81°N, 109.59°WJudith River — 48.98°N, 110.52°WJudith River — 46.10°N, 109.10°WJudith River — 46.47°N, 109.30°WJudith River — 48.93°N, 110.65°WCedar Mountain — 39.00°N, 111.00°WCedar Mountain — 38.66°N, 111.24°WCedar Mountain — 38.94°N, 111.08°WBlack Peaks — 29.20°N, 103.20°WBlack Peaks — 29.28°N, 103.55°WBlack Peaks — 29.42°N, 103.10°WBlack Peaks — 29.46°N, 103.15°W"Fort Union" (= Lebo) — 46.20°N, 109.90°W"Fort Union" (= Lebo) — 45.80°N, 109.80°WLower Variegated Sequence — 43.90°N, 110.80°WLower Variegated Sequence — 43.20°N, 108.20°WHanna — 41.80°N, 107.00°WScollard — 52.33°N, 113.12°WScollard — 51.91°N, 112.97°WScollard — 51.80°N, 113.00°WNagri — 32.77°N, 72.50°EFrenchman — 49.50°N, 109.10°WFrenchman — 49.40°N, 107.40°WFrenchman — 49.30°N, 108.40°WFrenchman — 49.50°N, 109.20°WFrenchman — 49.20°N, 109.20°W

Loading coastlines…

The named rock units Mammaliaformes has been recovered from, largest first. Drawn where the rock is now, not where it formed. The read hit its cap, so each count is a floor. 141 further formations hold fewer occurrences each and are not listed. 1,538 occurrences have no formation on record, which is common for older literature.

Found in the same rock

1,803 taxa

The Paleobiology Database records at least 455 sites for Mammaliaformes, and this reads 240 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

at least 629 references

Each of the 12,000 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. That read hit its cap, so each count is a floor. 617 further references are not listed. 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 Mammaliaformes

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

No 3D scan of Mammaliaformes 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 itMammaliamorpha through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Rowe 1988