Hemipristis

Hemipristis is a genus of weasel sharks, family Hemigaleidae. It contains one extant species, the snaggletooth shark and several extinct species.

Hemipristis

CSIRO National Fish Collection · CC BY 3.0 · 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
HemigaleidaePBDB
Diet
carnivorePBDB, for Carcharhiniformes
Life habit
nektonicPBDB, for Carcharhiniformes
Motility
actively mobilePBDB, for Carcharhiniformes

Time the record covers

At least 201 million years on record.

The record covers at least 201.4 Mya to 129 ka. No occurrence read is dated outside 205.7 Mya to 11.7 ka.

Late Triassic — about 1 of 292 occurrencesEarly Jurassic — about 0 of 292 occurrencesMiddle Jurassic — about 0 of 292 occurrencesLate Jurassic — about 0 of 292 occurrencesEarly Cretaceous — about 0 of 292 occurrencesLate Cretaceous — about 0 of 292 occurrencesPaleocene — about 0 of 292 occurrencesEocene — about 58 of 292 occurrencesEoceneOligocene — about 15 of 292 occurrencesMiocene — about 200 of 292 occurrencesMiocenePliocene — about 14 of 292 occurrencesPleistocene — about 4 of 292 occurrences210–203 Mya — about 0.7 occurrences203–196 Mya — about 0.3 occurrences63–56 Mya — about 0.0 occurrences56–49 Mya — about 2 occurrences49–42 Mya — about 3 occurrences42–35 Mya — about 41 occurrences35–28 Mya — about 19 occurrences28–21 Mya — about 23 occurrences21–14 Mya — about 78 occurrences14–7.0 Mya — about 90 occurrences7.0–0 Mya — about 35 occurrences201.4 Mya129 ka210 Mya0 Mya

292 occurrences of Hemipristis 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

292 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

121 formations

Calvert — 38.54°N, 76.73°WCalvert — 37.93°N, 77.51°WCalvert — 38.55°N, 76.52°WCalvert — 38.64°N, 76.52°WCalvert — 38.67°N, 76.53°WCalvert — 38.40°N, 76.50°WCalvert — 38.17°N, 76.81°WCalvert — 37.54°N, 77.44°WCalvert — 39.20°N, 75.60°WGehannam — 29.36°N, 30.16°EGehannam — 29.31°N, 30.17°EGehannam — 29.33°N, 30.08°EGehannam — 29.30°N, 30.05°EGatun — 9.35°N, 79.80°WGatun — 9.35°N, 79.84°WGatun — 9.34°N, 79.88°WPirabas — 1.18°S, 47.22°WPirabas — 0.48°S, 48.17°WPirabas — 1.05°S, 47.16°WPirabas — 0.63°S, 47.54°WPirabas — 0.60°S, 47.31°WPirabas — 0.73°S, 47.49°WPirabas — 0.64°S, 47.38°WBirket Qarun — 29.27°N, 30.06°EBirket Qarun — 29.28°N, 30.03°EBirket Qarun — 29.50°N, 30.56°EBirket Qarun — 29.45°N, 30.36°EUrumaco — 11.25°N, 70.27°WUrumaco — 11.24°N, 70.25°WChucunaque — 9.13°N, 78.75°WChucunaque — 9.15°N, 78.78°WYazoo — 31.66°N, 92.90°WYazoo — 31.82°N, 92.33°WYazoo — 31.71°N, 87.96°WYazoo — 31.93°N, 91.94°WYazoo — 31.63°N, 88.31°WQasr el-Sagha — 29.60°N, 30.67°EQasr el-Sagha — 29.32°N, 30.05°EQasr el-Sagha — 29.29°N, 29.99°ECantaure — 11.97°N, 70.02°WCantaure — 11.94°N, 70.02°WCulebra — 9.08°N, 79.68°WCulebra — 9.57°N, 79.65°WCulebra — 9.54°N, 79.66°WCulebra — 9.42°N, 79.65°WStatenville — 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°WYsidro — 27.70°N, 114.90°WYsidro — 26.23°N, 112.50°WChilcatay — 14.77°S, 75.39°WChilcatay — 14.62°S, 75.63°WChoptank — 38.39°N, 76.57°WChoptank — 38.38°N, 76.50°WChoptank — 38.50°N, 76.51°WLuanda — 8.76°S, 13.30°EGlobigerina 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 — 33.12°N, 81.70°WBhuban — 23.75°N, 92.68°EZushi — 35.26°N, 139.63°EZushi — 35.13°N, 139.62°EJaffna — 8.28°N, 79.82°EMoodys Branch — 32.23°N, 92.15°WMoodys Branch — 32.90°N, 90.19°WParana — 31.38°S, 60.23°WParana — 32.08°S, 60.49°W

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The named rock units Hemipristis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 97 further formations hold fewer occurrences each and are not listed. 53 occurrences have no formation on record, which is common for older literature.

Hemipristis and its relatives

Miocene

Where Hemipristis and its relatives were recorded in the Miocene.

Found in the same rock

3,036 taxa

The Paleobiology Database records 253 sites for Hemipristis, and this reads 240 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

155 references

Each of the 292 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. 143 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 Hemipristis

Credit
CSIRO National Fish Collection
Licence
CC BY 3.0
Commercial use
the licence allows it

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

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 itHemigaleidae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Agassiz 1835