Hemiscyllium

Hemiscyllium is a genus of carpet shark in the family Hemiscylliidae.

Hemiscyllium

User:Strobilomyces · 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
Sits inside
HemiscylliidaePBDB
Diet
carnivorePBDB, for Orectolobiformes
Life habit
nektobenthicPBDB, for Orectolobiformes
Motility
actively mobilePBDB, for Orectolobiformes

Time the record covers

At least 75 million years on record.

The record covers at least 113.2 Mya to 37.71 Mya. No occurrence read is dated outside 119.57 Mya to 33.9 Mya.

Early Cretaceous — about 5 of 55 occurrencesEarly CretaceousLate Cretaceous — about 19 of 55 occurrencesLate CretaceousPaleocene — about 5 of 55 occurrencesPaleoceneEocene — about 26 of 55 occurrencesEoceneOligocene — about 0 of 55 occurrences121–118 Mya — about 0.2 occurrences118–115 Mya — about 0.5 occurrences115–112 Mya — about 0.3 occurrences106–103 Mya — about 2 occurrences103–100 Mya — about 2 occurrences100–98 Mya — about 0.5 occurrences98–95 Mya — about 0.5 occurrences95–92 Mya — about 0.1 occurrences86–83 Mya — about 0.5 occurrences83–80 Mya — about 2 occurrences80–77 Mya — about 2 occurrences77–74 Mya — about 2 occurrences74–71 Mya — about 3 occurrences71–68 Mya — about 6 occurrences68–65 Mya — about 5 occurrences65–62 Mya — about 4 occurrences62–59 Mya — about 0.3 occurrences59–56 Mya — about 0.0 occurrences56–53 Mya — about 1 occurrence53–50 Mya — about 1 occurrence50–47 Mya — about 3 occurrences47–44 Mya — about 7 occurrences44–41 Mya — about 7 occurrences41–38 Mya — about 5 occurrences38–35 Mya — about 1 occurrence35–32 Mya — about 0.3 occurrences113.2 Mya37.71 Mya121 Mya32 Mya

55 occurrences of Hemiscyllium 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

55 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

25 formations

Marnes de Donzacq — 43.75°N, 0.84°WHunstanton — 54.15°N, 0.17°WHunstanton — 53.68°N, 0.50°WSelsey — 50.80°N, 1.21°WMarnes de Miretrain — 43.69°N, 1.13°WMiretrain Marl — 43.57°N, 1.11°WRødvig — 55.32°N, 12.44°ETor — 55.32°N, 12.44°EEarnley — 51.08°N, 1.17°WWittering — 51.08°N, 1.17°WElmore — 50.80°N, 1.20°WNew Egypt — 40.09°N, 74.55°WMuwaqqar Chalk-Marl — 30.75°N, 36.27°ELa Posa — 42.17°N, 0.99°EJbel Tagount — 31.42°N, 6.31°WMidawara — 29.08°N, 30.12°EKiev — 49.08°N, 33.13°EFishburne — 33.28°N, 79.64°WKuma — 45.10°N, 34.63°ECoffee Sand — 34.44°N, 88.58°WNorthumberland — 49.55°N, 124.70°WNierental — 47.66°N, 14.86°EBirket Qarun — 29.27°N, 30.02°EStevns Klint — 55.35°N, 12.44°EHythe — 51.24°N, 0.10°W

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The named rock units Hemiscyllium has been recovered from, largest first. Drawn where the rock is now, not where it formed. One further formation holds fewer occurrences and is not listed. 15 occurrences have no formation on record, which is common for older literature.

Hemiscyllium and its relatives

Eocene

Where Hemiscyllium and its relatives were recorded in the Eocene.

Found in the same rock

635 taxa

The Paleobiology Database records 52 sites for Hemiscyllium, 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

26 references

Each of the 55 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. 14 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 Hemiscyllium

Credit
User:Strobilomyces
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Hemiscyllium 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.

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 itHemiscylliidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Smith 1837