Semiacontiodus

Semiacontiodus

Viira, Viive · CC BY-NC 4.0 · via GBIF. 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
OneotodontidaePBDB
Diet
carnivorePBDB, for Conodonta
Life habit
nektonicPBDB, for Conodonta
Motility
actively mobilePBDB, for Conodonta
Vision
well-developedPBDB, for Conodonta

Time the record covers

At least 30 million years on record.

The record covers at least 486.85 Mya to 456.8 Mya. No occurrence read is dated outside 538.8 Mya to 443.1 Mya.

Cambrian — about 24 of 118 occurrencesCambrianOrdovician — about 94 of 118 occurrencesOrdovicianSilurian — about 0 of 118 occurrences541–537 Mya — about 0.1 occurrences537–534 Mya — about 0.2 occurrences534–531 Mya — about 0.2 occurrences531–527 Mya — about 0.2 occurrences527–524 Mya — about 0.2 occurrences524–521 Mya — about 0.2 occurrences521–517 Mya — about 0.2 occurrences517–514 Mya — about 0.2 occurrences514–511 Mya — about 0.2 occurrences511–508 Mya — about 0.2 occurrences508–504 Mya — about 0.2 occurrences504–501 Mya — about 0.2 occurrences501–498 Mya — about 0.2 occurrences498–494 Mya — about 2 occurrences494–491 Mya — about 2 occurrences491–488 Mya — about 14 occurrences488–484 Mya — about 10 occurrences484–481 Mya — about 8 occurrences481–478 Mya — about 8 occurrences478–474 Mya — about 4 occurrences474–471 Mya — about 5 occurrences471–468 Mya — about 17 occurrences468–464 Mya — about 13 occurrences464–461 Mya — about 18 occurrences461–458 Mya — about 9 occurrences458–454 Mya — about 5 occurrences454–451 Mya — about 0.7 occurrences451–448 Mya — about 0.1 occurrences448–445 Mya — about 0.1 occurrences445–441 Mya — about 0.0 occurrences486.85 Mya456.8 Mya541 Mya441 Mya

118 occurrences of Semiacontiodus on record, most of them in the Ordovician. 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

118 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

40 formations

Öland C — 57.11°N, 16.89°ESan Juan — 31.00°S, 69.00°WSan Juan — 30.36°S, 68.80°WToila — 59.43°N, 24.78°ETribes Hill — 43.55°N, 73.38°WTribes Hill — 42.98°N, 74.26°WTribes Hill — 42.92°N, 74.42°WSurvey Peak — 52.23°N, 117.22°WAdze — 57.12°N, 18.41°ELas Aguaditas — 30.36°S, 68.80°WLeetse — 59.43°N, 24.78°ECass Fjord — 76.92°N, 96.17°WVäo — 59.42°N, 24.75°EVäo — 59.30°N, 23.36°EVäo — 55.55°N, 24.10°EKomstad — 56.42°N, 13.20°EHwajeol — 37.07°N, 129.15°EBliss Sandstone — 32.87°N, 107.18°WGorge — 44.92°N, 73.17°WConococheague — 38.86°N, 78.50°WSanta Rosita — 22.76°S, 65.20°WKamlak — 51.62°N, 85.67°EVexin — 58.46°N, 42.51°ELunskaya — 58.61°N, 39.51°ENefedovskaya — 58.61°N, 39.51°ENanjinguan — 33.00°N, 111.00°EXilingxia — 33.00°N, 111.00°ESuri — 28.00°S, 68.00°WUst'-Kut — 60.00°N, 116.00°E

Loading coastlines…

The named rock units Semiacontiodus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 16 further formations hold fewer occurrences each and are not listed. 6 occurrences have no formation on record, which is common for older literature.

Semiacontiodus and its relatives

Ordovician

Where Semiacontiodus and its relatives were recorded in the Ordovician.

Found in the same rock

425 taxa

The Paleobiology Database records 102 sites for Semiacontiodus, 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

33 references

Each of the 118 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. 21 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 Semiacontiodus

Source
GBIF
Credit
Viira, Viive
Licence
CC BY-NC 4.0
Commercial use
the licence does not allow it

No 3D scan of Semiacontiodus 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 itOneotodontidae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.