Rhynchobatus

Rhynchobatus is a genus of rays commonly known as wedgefishes in the family Rhinidae. They are found in the tropical and subtropical Indo-Pacific with a single species in the eastern Atlantic. All species in this genus are assessed as Critically Endangered by IUCN.

Rhynchobatus

Peter Giger · CC BY 2.0 · 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
RhinidaePBDB
Diet
carnivorePBDB, for Chondrichthyes
Life habit
nektonicPBDB, for Chondrichthyes
Motility
actively mobilePBDB, for Chondrichthyes

Time the record covers

At least 82 million years on record.

The record covers at least 83.6 Mya to 774 ka. No occurrence read is dated outside 85.7 Mya to 11.7 ka.

Late Cretaceous — about 1 of 109 occurrencesLate CretaceousPaleocene — about 0 of 109 occurrencesEocene — about 59 of 109 occurrencesEoceneOligocene — about 8 of 109 occurrencesOligoceneMiocene — about 36 of 109 occurrencesMiocenePliocene — about 2 of 109 occurrencesPleistocene — about 3 of 109 occurrences87–85 Mya — about 0.6 occurrences85–82 Mya — about 0.4 occurrences58–55 Mya — about 1 occurrence55–52 Mya — about 5 occurrences52–50 Mya — about 5 occurrences50–47 Mya — about 8 occurrences47–44 Mya — about 10 occurrences44–41 Mya — about 10 occurrences41–38 Mya — about 4 occurrences38–35 Mya — about 11 occurrences35–32 Mya — about 6 occurrences32–29 Mya — about 3 occurrences29–26 Mya — about 2 occurrences26–23 Mya — about 1 occurrence23–20 Mya — about 1 occurrence20–17 Mya — about 6 occurrences17–15 Mya — about 6 occurrences15–12 Mya — about 11 occurrences12–8.7 Mya — about 5 occurrences8.7–5.8 Mya — about 5 occurrences5.8–2.9 Mya — about 3 occurrences2.9–0 Mya — about 3 occurrences83.6 Mya774 ka87 Mya0 Mya

109 occurrences of Rhynchobatus on record, most of them in the Eocene. 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

109 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

47 formations

Matam — 15.32°N, 13.03°WDongen — 52.73°N, 6.30°EDongen — 53.16°N, 6.22°ESelsey — 50.80°N, 1.21°WBirket Qarun — 29.28°N, 30.03°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°WKuma — 45.10°N, 34.63°EEarnley — 51.08°N, 1.17°WElmore — 50.80°N, 1.20°WSamlat — 23.36°N, 16.03°WMidawara — 29.03°N, 30.13°EMidawara — 29.08°N, 30.12°EGehannam — 29.33°N, 30.08°EChitarwata — 29.02°N, 68.99°EChitarwata — 28.85°N, 69.13°EGatun — 9.35°N, 79.84°WUscari — 9.57°N, 82.57°WEsbarrondadoiro — 38.17°N, 8.17°WEsbarrondadoiro — 39.30°N, 8.12°WAshley — 32.95°N, 80.18°WAshley — 32.97°N, 80.20°WBrussel Sand — 50.87°N, 4.38°EBrussel Sand — 50.53°N, 4.26°EMarnes de Donzacq — 43.75°N, 0.84°WLagos-Portimão — 37.08°N, 8.28°WUrumaco — 11.19°N, 70.26°WUrumaco — 11.24°N, 70.25°WBermont — 27.70°N, 82.50°WWittering — 51.08°N, 1.17°WWadi Umm Ghudran — 31.18°N, 35.70°E

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The named rock units Rhynchobatus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 23 further formations hold fewer occurrences each and are not listed. 22 occurrences have no formation on record, which is common for older literature.

Rhynchobatus and its relatives

Eocene

Where Rhynchobatus and its relatives were recorded in the Eocene.

Found in the same rock

1,392 taxa

The Paleobiology Database records 91 sites for Rhynchobatus, 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

57 references

Each of the 109 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. 45 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 Rhynchobatus

Credit
Peter Giger
Licence
CC BY 2.0
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 itRhinidae through timeFormations of the EoceneThe world it lived on

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