Sphenacanthidae

Sphenacanthidae

Creator: Dmitry Bogdanov · 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
HybodontiformesPBDB
Diet
carnivorePBDB, for Chondrichthyes
Life habit
nektonicPBDB, for Chondrichthyes
Motility
actively mobilePBDB, for Chondrichthyes

Time the record covers

At least 94 million years on record.

The record covers at least 358.86 Mya to 264.28 Mya. No occurrence read is dated outside 372.15 Mya to 256.8 Mya.

Devonian — about 1 of 42 occurrencesDevonianCarboniferous — about 4 of 42 occurrencesCarboniferousPermian — about 37 of 42 occurrencesPermian374–370 Mya — about 0.1 occurrences370–366 Mya — about 0.3 occurrences366–362 Mya — about 0.3 occurrences362–358 Mya — about 0.3 occurrences350–346 Mya — about 0.0 occurrences346–342 Mya — about 0.6 occurrences342–338 Mya — about 0.4 occurrences326–322 Mya — about 0.1 occurrences322–318 Mya — about 0.5 occurrences318–314 Mya — about 0.4 occurrences310–306 Mya — about 0.2 occurrences306–302 Mya — about 1 occurrence302–298 Mya — about 0.4 occurrences290–286 Mya — about 0.5 occurrences286–282 Mya — about 0.6 occurrences282–278 Mya — about 0.4 occurrences278–274 Mya — about 0.4 occurrences274–270 Mya — about 2 occurrences270–266 Mya — about 5 occurrences266–262 Mya — about 22 occurrences262–258 Mya — about 5 occurrences258–254 Mya — about 0.8 occurrences358.86 Mya264.28 Mya374 Mya254 Mya

42 occurrences of Sphenacanthidae on record, most of them in the Permian. 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

42 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

17 formations

Khuff — 20.86°N, 57.60°EKhuff — 21.01°N, 57.67°EAmanakskaya — 52.67°N, 53.45°EAmanakskaya — 52.95°N, 53.83°EIsheevo — 55.78°N, 48.93°EIsheevo — 55.04°N, 46.78°ECutoff — 31.82°N, 104.83°WPoldarsa — 60.58°N, 45.43°EIrati — 22.42°S, 47.65°WGlencartholm Volcanic Beds — 55.20°N, 3.07°WRio do Rasto — 23.17°S, 49.96°WBolshekinelskaya — 52.63°N, 53.78°EMalokinelskaya — 52.86°N, 53.54°EKutulukskaya — 53.31°N, 52.31°E'First' — 55.03°N, 48.89°E'Second' — 55.03°N, 48.88°EKama Region Third — 55.03°N, 48.88°EKazan — 55.78°N, 48.91°EMattoon — 38.44°N, 87.86°WSukhona — 60.58°N, 45.21°E

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The named rock units Sphenacanthidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Sphenacanthidae and its relatives

Permian

Where Sphenacanthidae and its relatives were recorded in the Permian.

Found in the same rock

234 taxa

The Paleobiology Database records 35 sites for Sphenacanthidae, 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

15 references

Each of the 42 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. 3 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 Sphenacanthidae

Credit
Creator: Dmitry Bogdanov
Licence
CC BY 3.0
Commercial use
the licence allows it

No 3D scan of Sphenacanthidae 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 itHybodontiformes through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Maisey 1982