Batrachosauroididae

Batrachosauroididae is an extinct family of prehistoric salamanders with holarctic distribution. They were paedomorphic and presumably aquatic. They are possibly the sister taxon of Proteidae, an extant family of aquatic salamanders. They are definitively known from the Late Cretaceous to Miocene of North America and Europe. Remains from the earliest Cretaceous (Berriasian) Lulworth Formation of England have tenatively been attributed to this family.

Batrachosauroididae

via iDigBio · CC BY-NC-SA · via iDigBio. 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
ProteidaPBDB
Diet
carnivorePBDB, for Temnospondyli
Life habit
amphibiousPBDB, for Temnospondyli
Motility
actively mobilePBDB, for Temnospondyli
Environment
brackish,freshwater,terrestrialPBDB, for Tetrapoda

Time the record covers

At least 127 million years on record.

The record covers at least 139.1 Mya to 11.63 Mya. No occurrence read is dated outside 143.1 Mya to 5.333 Mya.

Late Jurassic — about 0 of 207 occurrencesEarly Cretaceous — about 4 of 207 occurrencesEarly CretaceousLate Cretaceous — about 161 of 207 occurrencesLate CretaceousPaleocene — about 31 of 207 occurrencesEocene — about 2 of 207 occurrencesEoceneOligocene — about 1 of 207 occurrencesMiocene — about 8 of 207 occurrencesMiocenePliocene — about 0 of 207 occurrences146–141 Mya — about 1 occurrence141–136 Mya — about 2 occurrences122–117 Mya — about 0.2 occurrences117–112 Mya — about 0.2 occurrences112–108 Mya — about 0.2 occurrences108–103 Mya — about 0.2 occurrences103–98 Mya — about 0.8 occurrences98–93 Mya — about 1 occurrence93–89 Mya — about 0.9 occurrences89–84 Mya — about 2 occurrences84–79 Mya — about 33 occurrences79–74 Mya — about 34 occurrences74–69 Mya — about 48 occurrences69–65 Mya — about 49 occurrences65–60 Mya — about 16 occurrences60–55 Mya — about 9 occurrences55–50 Mya — about 0.8 occurrences50–46 Mya — about 0.4 occurrences46–41 Mya — about 0.6 occurrences36–31 Mya — about 1 occurrence26–22 Mya — about 0.6 occurrences22–17 Mya — about 2 occurrences17–12 Mya — about 3 occurrences12–7.4 Mya — about 2 occurrences7.4–2.6 Mya — about 0.1 occurrences139.1 Mya11.63 Mya146 Mya3 Mya

207 occurrences of Batrachosauroididae on record, most of them in the Late 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

207 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

41 formations

Hell Creek — 47.80°N, 106.10°WHell Creek — 45.95°N, 103.96°WHell Creek — 46.03°N, 103.77°WHell Creek — 46.38°N, 103.96°WHell Creek — 46.10°N, 103.30°WHell Creek — 46.33°N, 103.90°WHell Creek — 47.55°N, 107.13°WHell Creek — 47.57°N, 107.10°WHell Creek — 47.52°N, 106.40°WHell Creek — 47.55°N, 107.25°WHell Creek — 47.53°N, 106.92°WHell Creek — 47.07°N, 106.92°WHell Creek — 47.61°N, 106.90°WHell Creek — 47.60°N, 107.00°WHell Creek — 47.27°N, 107.13°WHell Creek — 45.05°N, 101.97°WHell Creek — 45.50°N, 103.10°WHell Creek — 45.64°N, 103.49°WHell Creek — 45.00°N, 103.19°WDinosaur Park — 49.12°N, 110.47°WDinosaur Park — 50.74°N, 111.49°WDinosaur Park — 50.79°N, 111.62°WDinosaur Park — 50.75°N, 111.46°WDinosaur Park — 50.75°N, 111.40°WDinosaur Park — 50.78°N, 111.33°WDinosaur Park — 49.96°N, 110.27°WDinosaur Park — 50.68°N, 108.09°WLance — 43.30°N, 104.37°WLance — 43.12°N, 104.64°WLance — 41.57°N, 108.67°WLance — 43.18°N, 104.53°WLance — 43.15°N, 104.57°WLance — 43.13°N, 104.49°WLance — 43.80°N, 104.62°WLance — 43.00°N, 104.50°WOldman — 50.75°N, 111.51°WOldman — 49.10°N, 110.94°WOldman — 49.08°N, 110.84°WOldman — 49.08°N, 110.68°WOldman — 49.16°N, 110.72°WOldman — 50.83°N, 111.32°WFort Union — 45.20°N, 109.00°WFort Union — 45.80°N, 109.80°WFort Union — 44.91°N, 108.93°WFort Union — 44.72°N, 108.62°WFort Union — 44.05°N, 109.00°WFort Union — 46.05°N, 104.48°WFort Union — 46.90°N, 101.50°WFort Union — 47.60°N, 107.00°WFort Union — 46.33°N, 104.01°WFort Union — 41.30°N, 107.74°WHorseshoe Canyon — 51.55°N, 112.87°WHorseshoe Canyon — 52.00°N, 112.88°WKaiparowits — 37.80°N, 111.50°WKaiparowits — 37.20°N, 112.88°WKaiparowits — 37.42°N, 111.77°WFruitland — 36.49°N, 108.49°WFruitland — 36.27°N, 108.21°WJudith River — 47.81°N, 109.59°WJudith River — 46.10°N, 109.10°WJudith River — 47.73°N, 108.95°WLulworth — 50.60°N, 1.97°WForemost — 50.07°N, 111.14°WForemost — 49.13°N, 110.87°WFrenchman — 49.52°N, 108.82°WFrenchman — 49.30°N, 108.40°WKirtland — 36.30°N, 108.20°WKirtland — 36.51°N, 108.32°WStraight Cliffs — 37.80°N, 111.50°WStraight Cliffs — 37.62°N, 112.16°WMarshalltown — 40.30°N, 74.30°WFleming — 31.00°N, 93.40°WFleming — 30.70°N, 94.70°WTullock — 47.80°N, 106.10°WRavenscrag — 49.06°N, 102.75°WRavenscrag — 49.50°N, 109.20°WIron Springs — 37.57°N, 113.43°WIron Springs — 37.37°N, 113.35°WFox Hills — 46.47°N, 99.58°WFox Hills — 46.38°N, 99.59°WWilliams Fork — 39.93°N, 108.82°WGolden Valley — 46.90°N, 102.80°WTorreya — 30.50°N, 84.50°WLaramie — 40.39°N, 104.49°W

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The named rock units Batrachosauroididae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 17 further formations hold fewer occurrences each and are not listed. 11 occurrences have no formation on record, which is common for older literature.

Batrachosauroididae and its relatives

Late Cretaceous

Where Batrachosauroididae and its relatives were recorded in the Late Cretaceous.

Found in the same rock

1,574 taxa

The Paleobiology Database records 173 sites for Batrachosauroididae, 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

60 references

Each of the 207 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. 48 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 content2

Picture of Batrachosauroididae

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-NC-SA
Commercial use
the licence does not allow it

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Batrachosauroididae indet. · UP:Villeveyrac:UP.VIL.2008.02

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 itProteida through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Auffenberg 1958