Isurus retroflexus

Isurus retroflexus

Mason Hintermeister · CC BY-NC 4.0 · via GBIF. 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
IsurusPBDB
Diet
carnivorePBDB, for Lamniformes
Life habit
nektonicPBDB, for Lamniformes
Motility
actively mobilePBDB, for Lamniformes

Time the record covers

At least 20 million years on record.

The record covers at least 27.3 Mya to 7.246 Mya. No occurrence read is dated outside 33.9 Mya to 5.333 Mya.

Eocene — about 0 of 40 occurrencesOligocene — about 3 of 40 occurrencesOligoceneMiocene — about 37 of 40 occurrencesMiocenePliocene — about 0 of 40 occurrences34–33 Mya — about 0.1 occurrences33–32 Mya — about 0.1 occurrences32–32 Mya — about 0.1 occurrences32–31 Mya — about 0.1 occurrences31–30 Mya — about 0.1 occurrences30–29 Mya — about 0.1 occurrences29–28 Mya — about 0.1 occurrences28–27 Mya — about 0.4 occurrences27–26 Mya — about 0.5 occurrences26–25 Mya — about 0.5 occurrences25–24 Mya — about 0.5 occurrences24–23 Mya — about 0.9 occurrences23–22 Mya — about 1 occurrence22–21 Mya — about 2 occurrences21–20 Mya — about 2 occurrences20–19 Mya — about 2 occurrences19–18 Mya — about 1 occurrence18–17 Mya — about 1 occurrence17–16 Mya — about 2 occurrences16–15 Mya — about 4 occurrences15–14 Mya — about 4 occurrences14–13 Mya — about 3 occurrences13–12 Mya — about 3 occurrences12–11 Mya — about 1 occurrence11–9.7 Mya — about 1 occurrence9.7–8.7 Mya — about 1 occurrence8.7–7.7 Mya — about 1 occurrence7.7–6.7 Mya — about 2 occurrences6.7–5.8 Mya — about 2 occurrences5.8–4.8 Mya — about 0.8 occurrences27.3 Mya7.246 Mya34.5 Mya4.8 Mya

40 occurrences of Isurus retroflexus 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

40 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

23 formations

Berchem — 51.20°N, 4.44°EBerchem — 51.14°N, 4.63°EBlack Rock Sandstone — 37.99°S, 145.04°EFujina — 35.41°N, 132.92°ECalvert — 38.40°N, 76.50°WCalvert — 38.17°N, 76.81°WBreda — 51.97°N, 6.73°EBreda — 51.47°N, 5.80°EFilakovo — 48.31°N, 19.70°EPort Campbell Limestone — 37.72°S, 141.93°EBatesford Limestone — 38.09°S, 144.28°EFushina — 35.24°N, 133.24°ECoosawatchie — 33.10°N, 80.40°WMorgan Limestone — 34.03°S, 139.65°EUscari — 9.57°N, 82.57°WOamaru — 43.23°S, 171.72°EThomas — 43.20°S, 171.70°EOmihi — 43.55°S, 171.73°EGellibrand — 38.57°S, 143.33°EJan Juc — 38.20°S, 144.27°EFossil Bluff Sandstone — 40.98°S, 145.73°EGlenforslan — 34.09°S, 139.64°EPétervására — 48.24°N, 19.66°EDeist — 51.19°N, 4.46°ETunga — 14.27°S, 76.05°WPietra Leccese — 40.33°N, 18.19°E

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The named rock units Isurus retroflexus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 occurrences have no formation on record, which is common for older literature.

Isurus retroflexus and its relatives

Miocene

Where Isurus retroflexus and its relatives were recorded in the Miocene.

Found in the same rock

376 taxa

The Paleobiology Database records 37 sites for Isurus retroflexus, 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

23 references

Each of the 40 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. 11 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 Isurus retroflexus

Source
GBIF
Credit
Mason Hintermeister
Licence
CC BY-NC 4.0
Commercial use
the licence does not allow it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itIsurus through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Agassiz 1838)