Gryposuchinae

Gryposuchinae is an extinct subfamily of gavialid crocodylians. Gryposuchines lived mainly in the Miocene of South America. However, "Ikanogavialis" papuensis may have survived more recently, into the Late Pleistocene/Holocene. Most were long-snouted coastal forms. The group was named in 2007 and includes genera such as Gryposuchus and Aktiogavialis, although a 2018 study indicates that the group might be paraphyletic and rather an evolutionary grade towards the gharial.

Gryposuchinae

Ghedoghedo · CC BY-SA 4.0 · 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
GavialidaePBDB
Diet
carnivorePBDB, for Crocodylia
Motility
actively mobilePBDB, for Osteichthyes
Environment
marinePBDB, for Mesoeucrocodylia

Time the record covers

At least 13 million years on record.

The record covers at least 15.98 Mya to 2.58 Mya. No occurrence read is dated outside 56 Mya to 11.7 ka.

Paleocene — about 0 of 34 occurrencesEocene — about 0 of 34 occurrencesEoceneOligocene — about 0 of 34 occurrencesOligoceneMiocene — about 32 of 34 occurrencesMiocenePliocene — about 1 of 34 occurrencesPleistocene — about 1 of 34 occurrences57–55 Mya — about 0.0 occurrences55–53 Mya — about 0.0 occurrences53–51 Mya — about 0.0 occurrences51–50 Mya — about 0.0 occurrences50–48 Mya — about 0.0 occurrences48–46 Mya — about 0.0 occurrences46–44 Mya — about 0.0 occurrences44–42 Mya — about 0.0 occurrences42–40 Mya — about 0.0 occurrences40–38 Mya — about 0.0 occurrences38–36 Mya — about 0.0 occurrences36–34 Mya — about 0.0 occurrences34–32 Mya — about 0.0 occurrences32–30 Mya — about 0.0 occurrences30–29 Mya — about 0.0 occurrences29–27 Mya — about 0.0 occurrences27–25 Mya — about 0.0 occurrences25–23 Mya — about 0.0 occurrences23–21 Mya — about 0.0 occurrences21–19 Mya — about 0.4 occurrences19–17 Mya — about 0.5 occurrences17–15 Mya — about 2 occurrences15–13 Mya — about 5 occurrences13–11 Mya — about 9 occurrences11–9.5 Mya — about 6 occurrences9.5–7.6 Mya — about 5 occurrences7.6–5.7 Mya — about 4 occurrences5.7–3.8 Mya — about 1 occurrence3.8–1.9 Mya — about 0.3 occurrences1.9–0 Mya — about 0.7 occurrences15.98 Mya2.58 Mya57 Mya0 Mya

34 occurrences of Gryposuchinae on record, most of them in the Miocene. 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

34 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

10 formations

Urumaco — 11.22°N, 70.24°WUrumaco — 11.25°N, 70.27°WPebas — 3.99°S, 73.17°WPebas — 4.01°S, 73.37°WPebas — 4.30°S, 73.46°WPebas — 4.01°S, 73.03°WPebas — 3.74°S, 73.25°WSolimoes — 10.12°S, 66.88°WSolimoes — 10.94°S, 69.34°WLa Victoria — 3.30°N, 75.13°WLa Victoria — 3.30°N, 75.17°WVillavieja — 3.30°N, 75.17°WSolimões — 9.08°S, 68.67°WSolimões — 7.84°S, 69.15°WItuzaingo — 31.48°S, 60.23°WCastillo — 10.37°N, 70.05°WCaujarao — 11.50°N, 69.52°WYanigüa-Los Haitises — 18.91°N, 69.75°W

Loading coastlines…

The named rock units Gryposuchinae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Gryposuchinae and its relatives

Miocene

Where Gryposuchinae and its relatives were recorded in the Miocene.

Found in the same rock

399 taxa

The Paleobiology Database records 30 sites for Gryposuchinae, 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

18 references

Each of the 34 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. 5 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 Gryposuchinae

Credit
Ghedoghedo
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Gryposuchinae 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 itGavialidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Vélez-Juarbe et al. 2007