Symmoriidae

Symmoriidae is an extinct family of cartilaginous fish belonging to the order Symmoriiformes. Members of the family are known from the Devonian and Carboniferous periods.

Symmoriidae

Dmitry Bogdanov · CC BY 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
SymmoriiformesPBDB
Diet
carnivorePBDB, for Symmoriiformes
Life habit
nektonicPBDB, for Symmoriiformes
Motility
actively mobilePBDB, for Symmoriiformes

Time the record covers

At least 349 million years on record.

The record covers at least 372.15 Mya to 23.04 Mya. No occurrence read is dated outside 382.31 Mya to 2.58 Mya.

Devonian — about 11 of 143 occurrencesCarboniferous — about 56 of 143 occurrencesCarboniferousPermian — about 73 of 143 occurrencesPermianEarly Triassic — about 0 of 143 occurrencesMiddle Triassic — about 0 of 143 occurrencesLate Triassic — about 0 of 143 occurrencesEarly Jurassic — about 0 of 143 occurrencesMiddle Jurassic — about 0 of 143 occurrencesLate Jurassic — about 0 of 143 occurrencesEarly Cretaceous — about 0 of 143 occurrencesLate Cretaceous — about 0 of 143 occurrencesPaleocene — about 0 of 143 occurrencesEocene — about 0 of 143 occurrencesOligocene — about 0 of 143 occurrencesMiocene — about 3 of 143 occurrencesPliocene — about 0 of 143 occurrencesPleistocene — about 0 of 143 occurrences390–377 Mya — about 2 occurrences377–364 Mya — about 7 occurrences364–351 Mya — about 5 occurrences351–338 Mya — about 4 occurrences338–325 Mya — about 7 occurrences325–312 Mya — about 14 occurrences312–299 Mya — about 28 occurrences299–286 Mya — about 11 occurrences286–273 Mya — about 9 occurrences273–260 Mya — about 53 occurrences260–247 Mya — about 0.3 occurrences26–13 Mya — about 2 occurrences13–0 Mya — about 0.5 occurrences372.15 Mya23.04 Mya390 Mya0 Mya

143 occurrences of Symmoriidae 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

143 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

36 formations

Bell Canyon — 31.31°N, 104.54°WBell Canyon — 31.93°N, 104.73°WBell Canyon — 31.79°N, 104.88°WCutoff — 31.82°N, 104.83°WCutoff — 31.88°N, 104.88°WLinton — 39.72°N, 87.32°WLinton — 39.79°N, 87.38°WLinton — 39.46°N, 87.19°WLinton — 40.94°N, 90.27°WCherry Canyon — 31.87°N, 104.84°WCarbondale — 38.28°N, 87.17°WStaunton — 39.85°N, 87.30°WStaunton — 39.70°N, 87.30°WOhio shale — 41.47°N, 81.78°WOhio shale — 41.45°N, 81.83°WOhio shale — 41.38°N, 81.50°WWild Cow — 34.95°N, 106.30°WBrushy Canyon — 31.84°N, 104.86°WExcello Shale — 38.28°N, 87.18°WCulebra — 9.03°N, 79.63°WAkasaka — 35.40°N, 136.58°EJingyuan — 36.56°N, 104.68°EAltamont Limestone — 37.04°N, 95.53°WAltamont Limestone — 41.80°N, 96.15°WKazarka — 71.45°N, 53.04°EManse Burn — 55.92°N, 4.33°WManse Burn — 55.80°N, 4.18°WOnaga — 40.48°N, 95.73°WCutoff / Brushy Canyon — 31.83°N, 104.86°WHeath — 46.95°N, 108.96°WNaco — 34.33°N, 111.12°WJarillal — 32.62°S, 69.25°WGray Mesa — 34.10°N, 106.80°WMinturn — 39.91°N, 106.71°WMinnelusa — 44.22°N, 103.41°W

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The named rock units Symmoriidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 further formations hold fewer occurrences each and are not listed. 28 occurrences have no formation on record, which is common for older literature.

Symmoriidae and its relatives

Permian

Where Symmoriidae and its relatives were recorded in the Permian.

Found in the same rock

377 taxa

The Paleobiology Database records 119 sites for Symmoriidae, 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

41 references

Each of the 143 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. 29 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 Symmoriidae

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

No 3D scan of Symmoriidae was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itSymmoriiformes through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Dean 1909