Negaprion

Negaprion is a genus of requiem sharks in the family Carcharhinidae. It contains the two extant species of lemon sharks: the lemon shark of the Americas, and the sicklefin lemon shark of the Indo-Pacific. Both species are large, slow-moving, bulky sharks inhabiting shallow coastal waters, and can be identified by their short, blunt snouts, two dorsal fins of nearly equal size, and uniform yellowish brown or gray coloration.

Negaprion

Albert Kok · 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
Also called
lemon sharkPBDB
Sits inside
CarcharhinidaePBDB
Diet
carnivorePBDB, for Carcharhiniformes
Life habit
nektonicPBDB, for Carcharhiniformes
Motility
actively mobilePBDB, for Carcharhiniformes

Time the record covers

At least 41 million years on record.

The record covers at least 41.03 Mya to 11.7 ka. No occurrence read is dated outside 56 Mya to 0 Mya.

Paleocene — about 0 of 187 occurrencesEocene — about 53 of 187 occurrencesEoceneOligocene — about 14 of 187 occurrencesOligoceneMiocene — about 99 of 187 occurrencesMiocenePliocene — about 13 of 187 occurrencesPleistocene — about 6 of 187 occurrences57–55 Mya — about 0.1 occurrences55–53 Mya — about 0.2 occurrences53–51 Mya — about 0.2 occurrences51–50 Mya — about 0.2 occurrences50–48 Mya — about 0.4 occurrences48–46 Mya — about 1 occurrence46–44 Mya — about 1 occurrence44–42 Mya — about 1 occurrence42–40 Mya — about 2 occurrences40–38 Mya — about 3 occurrences38–36 Mya — about 18 occurrences36–34 Mya — about 22 occurrences34–32 Mya — about 7 occurrences32–30 Mya — about 4 occurrences30–29 Mya — about 4 occurrences29–27 Mya — about 2 occurrences27–25 Mya — about 0.4 occurrences25–23 Mya — about 1 occurrence23–21 Mya — about 8 occurrences21–19 Mya — about 9 occurrences19–17 Mya — about 10 occurrences17–15 Mya — about 10 occurrences15–13 Mya — about 11 occurrences13–11 Mya — about 14 occurrences11–9.5 Mya — about 13 occurrences9.5–7.6 Mya — about 11 occurrences7.6–5.7 Mya — about 10 occurrences5.7–3.8 Mya — about 11 occurrences3.8–1.9 Mya — about 5 occurrences1.9–0 Mya — about 8 occurrences41.03 Mya11.7 ka57 Mya0 Mya

187 occurrences of Negaprion on record, most of them in the Miocene. The Paleobiology Database records this as a living group. 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

187 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

76 formations

Qasr el-Sagha — 29.32°N, 30.05°EQasr el-Sagha — 29.27°N, 30.01°EBirket Qarun — 29.27°N, 30.06°EBirket Qarun — 29.27°N, 30.01°EGehannam — 29.31°N, 30.18°EGehannam — 29.36°N, 30.16°EGehannam — 29.32°N, 30.07°EGatun — 9.35°N, 79.84°WGatun — 9.30°N, 79.92°WGatun — 9.35°N, 79.81°WPirabas — 1.21°S, 47.16°WPirabas — 1.05°S, 47.16°WPirabas — 0.59°S, 47.32°WUrumaco — 11.19°N, 70.26°WUrumaco — 11.24°N, 70.25°WCantaure — 11.97°N, 70.02°WCantaure — 11.94°N, 70.02°WYamaga — 33.99°N, 130.82°EStatenville — 30.40°N, 83.00°WStatenville — 30.23°N, 82.63°WLagos-Portimão — 37.08°N, 8.28°WLagos-Portimão — 37.12°N, 8.54°WLagos-Portimão — 37.08°N, 8.67°WAlachua — 29.55°N, 82.52°WAlachua — 29.65°N, 82.60°WJacksonian — 32.74°N, 83.50°WOnzole — 0.63°S, 80.47°WOnzole — 0.60°S, 80.45°WGlobigerina Limestone — 36.08°N, 14.24°EGlobigerina Limestone — 35.90°N, 14.33°EDry Branch — 33.62°N, 81.68°WDry Branch — 33.50°N, 84.74°WDry Branch — 33.58°N, 81.43°WTallahatta — 31.79°N, 88.32°WTallahatta — 31.39°N, 88.69°WTallahatta — 31.37°N, 86.52°WGosport Sand — 31.53°N, 87.57°WGosport Sand — 31.50°N, 87.80°WGosport Sand — 31.50°N, 88.50°WTamiami — 26.72°N, 81.67°WTamiami — 27.34°N, 82.51°WBermont — 27.70°N, 82.50°WYazoo — 31.71°N, 87.96°WYazoo — 31.93°N, 88.46°WDaba'a — 29.16°N, 27.43°ELuanda — 8.76°S, 13.30°ECulebra — 9.57°N, 79.65°WCulebra — 9.42°N, 79.65°WArcadia — 27.80°N, 81.98°WArcadia — 27.29°N, 82.53°W

Loading coastlines…

The named rock units Negaprion has been recovered from, largest first. Drawn where the rock is now, not where it formed. 52 further formations hold fewer occurrences each and are not listed. 25 occurrences have no formation on record, which is common for older literature.

Negaprion and its relatives

Miocene

Where Negaprion and its relatives were recorded in the Miocene.

Found in the same rock

2,187 taxa

The Paleobiology Database records 143 sites for Negaprion, 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

82 references

Each of the 187 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. 70 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 Negaprion

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

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itCarcharhinidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Whitley 1940