Machimosaurini

Machimosauridae is an extinct family of teleosauroid thalattosuchian crocodyliforms. The family was first identified in 2016, when fossils of teleosauroid thalattosuchians, including an indeterminate close relative of Lemmysuchus and Machimosaurus, were described from the Middle Jurassic (Bathonian) of Morocco. The family was largely expanded in 2020 when the systematics of Teleosauroidea were re-reviewed. Members of this family generally were larger than the teleosaurids.

Machimosaurini

Ghedoghedo · CC BY-SA 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
Sits inside
MachimosaurinaePBDB
Diet
carnivorePBDB, for Thalattosuchia
Life habit
nektonicPBDB, for Thalattosuchia
Motility
actively mobilePBDB, for Thalattosuchia
Environment
marinePBDB, for Thalattosuchia

Time the record covers

At least 32 million years on record.

The record covers at least 165.3 Mya to 132.6 Mya. No occurrence read is dated outside 170.9 Mya to 100.5 Mya.

Middle Jurassic — about 8 of 54 occurrencesMiddle JurassicLate Jurassic — about 37 of 54 occurrencesLate JurassicEarly Cretaceous — about 9 of 54 occurrencesEarly CretaceousLate Cretaceous — about 0 of 54 occurrences172–170 Mya — about 0.2 occurrences170–167 Mya — about 1 occurrence167–165 Mya — about 3 occurrences165–163 Mya — about 3 occurrences163–160 Mya — about 1 occurrence160–158 Mya — about 2 occurrences158–155 Mya — about 4 occurrences155–153 Mya — about 8 occurrences153–150 Mya — about 12 occurrences150–148 Mya — about 7 occurrences148–145 Mya — about 2 occurrences145–143 Mya — about 1 occurrence143–141 Mya — about 0.4 occurrences141–138 Mya — about 0.4 occurrences138–136 Mya — about 0.4 occurrences136–133 Mya — about 0.4 occurrences133–131 Mya — about 1 occurrence131–128 Mya — about 1 occurrence128–126 Mya — about 1 occurrence126–123 Mya — about 1 occurrence123–121 Mya — about 1.0 occurrences121–119 Mya — about 0.2 occurrences119–116 Mya — about 0.2 occurrences116–114 Mya — about 0.2 occurrences114–111 Mya — about 0.1 occurrences111–109 Mya — about 0.1 occurrences109–106 Mya — about 0.1 occurrences106–104 Mya — about 0.1 occurrences104–102 Mya — about 0.1 occurrences102–99 Mya — about 0.0 occurrences165.3 Mya132.6 Mya172 Mya99 Mya

54 occurrences of Machimosaurini 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

54 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

19 formations

Douiret — 32.68°N, 10.17°EDouiret — 33.11°N, 10.33°EDouiret — 32.87°N, 10.38°EOxford Clay — 52.57°N, 0.23°WOxford Clay — 50.61°N, 2.45°WLourinhã — 39.23°N, 9.34°WAlcobaça — 39.70°N, 8.80°WAlcobaça — 39.82°N, 8.65°WArgiles de Châtillon — 50.81°N, 1.61°EArgiles de Châtillon — 50.72°N, 1.62°ESables de Glos — 49.11°N, 0.38°EHigueruelas — 39.42°N, 0.76°WRaetschenbank — 47.17°N, 8.53°EMarnes a Gryphées virgules d'Issoncourt — 49.16°N, 5.39°EMont-Lambert — 50.77°N, 1.63°EKimmeridge Clay — 50.59°N, 2.47°WCalcaires marneux à Ptérocères — 46.09°N, 4.79°ECouches à Cidaris chofatti — 39.37°N, 9.15°WTereñes — 43.59°N, 5.87°WCalcaires Coquilliers — 49.40°N, 0.15°ETilougguit — 32.25°N, 6.30°WSüntel — 52.29°N, 8.71°ELastres — 43.48°N, 5.44°WHauptrogenstein — 47.42°N, 8.14°E

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The named rock units Machimosaurini has been recovered from, largest first. Drawn where the rock is now, not where it formed. 23 occurrences have no formation on record, which is common for older literature.

Machimosaurini and its relatives

Late Jurassic

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

Found in the same rock

275 taxa

The Paleobiology Database records 48 sites for Machimosaurini, 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

27 references

Each of the 54 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. 15 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 Machimosaurini

Credit
Ghedoghedo
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Machimosaurini 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 itMachimosaurinae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Jouve et al. 2016