Leptocharias

Leptocharias

Müller & Henle · Public Domain · via Wikidata/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
LeptochariidaePBDB
Diet
carnivorePBDB, for Carcharhiniformes
Life habit
nektonicPBDB, for Carcharhiniformes
Motility
actively mobilePBDB, for Carcharhiniformes

Time the record covers

At least 45 million years on record.

The record covers at least 83.6 Mya to 37.71 Mya. No occurrence read is dated outside 85.7 Mya to 33.9 Mya.

Late Cretaceous — about 6 of 27 occurrencesLate CretaceousPaleocene — about 1 of 27 occurrencesPaleoceneEocene — about 20 of 27 occurrencesEoceneOligocene — about 0 of 27 occurrences87–85 Mya — about 1 occurrence85–83 Mya — about 3 occurrences83–81 Mya — about 0.3 occurrences81–80 Mya — about 0.3 occurrences80–78 Mya — about 0.3 occurrences78–76 Mya — about 0.3 occurrences76–74 Mya — about 0.3 occurrences74–72 Mya — about 0.3 occurrences72–71 Mya — about 0.0 occurrences60–58 Mya — about 0.4 occurrences58–56 Mya — about 0.6 occurrences56–54 Mya — about 0.1 occurrences49–47 Mya — about 0.2 occurrences47–45 Mya — about 0.3 occurrences45–44 Mya — about 0.3 occurrences44–42 Mya — about 0.3 occurrences42–40 Mya — about 0.6 occurrences40–38 Mya — about 0.9 occurrences38–36 Mya — about 6 occurrences36–35 Mya — about 8 occurrences35–33 Mya — about 3 occurrences83.6 Mya37.71 Mya87 Mya33 Mya

27 occurrences of Leptocharias on record, most of them in the Eocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

27 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

8 formations

Gehannam — 29.33°N, 30.08°EGehannam — 29.30°N, 30.05°EBirket Qarun — 29.28°N, 30.03°ENewhaven Chalk — 51.45°N, 1.36°WNewhaven Chalk — 51.53°N, 0.70°WQasr el-Sagha — 29.32°N, 30.05°EQasr el-Sagha — 29.29°N, 29.99°EMidawara — 29.08°N, 30.12°ECulver Chalk — 50.85°N, 1.15°WTuffeau de St-Omer — 50.53°N, 3.15°EQasr El Sagha — 28.82°N, 29.14°E

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The named rock units Leptocharias has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Leptocharias and its relatives

Eocene

Where Leptocharias and its relatives were recorded in the Eocene.

Found in the same rock

135 taxa

The Paleobiology Database records 10 sites for Leptocharias, 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

3 references

Each of the 27 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. 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 Leptocharias

Credit
Müller & Henle
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Leptocharias 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.

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

Keep going

What may have been alongside itLeptochariidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Müller and Henle 1837