Estonioceratidae

The Estonioceratidae, from Estonia and Ancient Greek κέρας (kéras), meaning "horn", are a family of loosely coiled tarphycerids in which the inner side of the whorls, which forms the dorsum, is rounded or flat with no impression, and in which the siphuncle, composed of thick tubular segments, is located ventrally. The Estonioceratidae seem to form a link between the ancestral Bassleroceratidae and the more tightly coiled Tarphyceratidae.

Estonioceratidae

H. Zell · 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
TarphyceridaPBDB
Diet
carnivorePBDB, for Cephalopoda
Life habit
nektobenthicPBDB, for Tarphycerida
Motility
fast-movingPBDB, for Cephalopoda
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At least 12 million years on record.

The record covers at least 481.7 Mya to 469.1 Mya. No occurrence read is dated outside 486.85 Mya to 457.3 Mya.

Cambrian — about 0 of 61 occurrencesOrdovician — about 61 of 61 occurrencesOrdovician487–486 Mya — about 0.3 occurrences486–485 Mya — about 0.8 occurrences485–484 Mya — about 0.8 occurrences484–483 Mya — about 1.0 occurrences483–482 Mya — about 4 occurrences482–481 Mya — about 4 occurrences481–480 Mya — about 3 occurrences480–479 Mya — about 3 occurrences479–478 Mya — about 3 occurrences478–477 Mya — about 3 occurrences477–476 Mya — about 5 occurrences476–475 Mya — about 5 occurrences475–474 Mya — about 5 occurrences474–473 Mya — about 5 occurrences473–472 Mya — about 5 occurrences472–471 Mya — about 4 occurrences471–470 Mya — about 0.5 occurrences470–469 Mya — about 0.6 occurrences469–468 Mya — about 1 occurrence468–467 Mya — about 1 occurrence467–466 Mya — about 1 occurrence466–465 Mya — about 0.9 occurrences465–464 Mya — about 0.7 occurrences464–463 Mya — about 0.5 occurrences463–462 Mya — about 0.5 occurrences462–461 Mya — about 0.5 occurrences461–460 Mya — about 0.5 occurrences460–459 Mya — about 0.5 occurrences459–458 Mya — about 0.3 occurrences458–457 Mya — about 0.1 occurrences481.7 Mya469.1 Mya487.4 Mya456.7 Mya

61 occurrences of Estonioceratidae 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

61 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

22 formations

Jefferson City — 36.95°N, 92.66°WJefferson City — 37.97°N, 91.69°WJefferson City — 37.64°N, 93.09°WJefferson City — 36.78°N, 92.23°WJefferson City — 36.91°N, 92.81°WJefferson City — 36.58°N, 92.61°WJefferson City — 37.61°N, 93.32°WJefferson City — 37.61°N, 93.41°WJefferson City — 36.78°N, 92.91°WJefferson City — 36.86°N, 92.89°WJefferson City — 36.93°N, 93.06°WJefferson City — 36.59°N, 92.70°WJefferson City — 37.12°N, 92.08°WCotter — 36.21°N, 83.29°WCotter — 37.64°N, 93.09°WCotter — 36.62°N, 90.82°WCotter — 37.14°N, 90.08°WCotter — 36.93°N, 93.06°WCotter — 36.74°N, 93.03°WBoat Harbour — 50.71°N, 57.33°WBoat Harbour — 48.54°N, 58.74°WRochdale — 41.44°N, 74.36°WRochdale — 43.49°N, 73.38°WYijianfang — 40.13°N, 78.83°EDay Point — 44.60°N, 73.44°WNaylor Ledge — 45.04°N, 73.07°WCroisaphuill — 58.56°N, 4.77°WRich Fountain — 38.58°N, 92.17°WFort Ann — 43.91°N, 73.42°WHoneycut — 30.27°N, 97.74°WYinshan — 41.00°N, 79.00°EKindblade — 34.37°N, 97.13°WOgdensburg — 44.68°N, 75.52°WPowell — 36.23°N, 92.68°WSmithville — 36.08°N, 91.30°WHuk — 59.78°N, 10.48°EGillberga — 57.35°N, 17.05°EBen Suardal Limestone — 57.23°N, 5.92°WKarmberg Limestone — 42.72°S, 146.31°EOl — 65.50°N, 167.68°WLoobu — 59.50°N, 26.27°E

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The named rock units Estonioceratidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Estonioceratidae and its relatives

Ordovician

Where Estonioceratidae and its relatives were recorded in the Ordovician.

Found in the same rock

206 taxa

The Paleobiology Database records 48 sites for Estonioceratidae, 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 61 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 Estonioceratidae

Credit
H. Zell
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Estonioceratidae 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 itTarphycerida through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hyatt 1900