Microzarkodina

Microzarkodina is an extinct genus of conodonts mainly from the Middle Ordovician of Baltoscandia. The Microzarkodina apparatus probably consisted of 15 or 17 elements: four P, two or four M and nine S elements. The S elements include different Sa, Sb1, Sb2, and Sc element types.

Microzarkodina

via GBIF · CC0 · 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
OzarkodinidaPBDB
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 5.4 million years on record.

The record covers at least 471.3 Mya to 465.9 Mya. No occurrence read is dated outside 486.85 Mya to 458.2 Mya.

Cambrian — about 0 of 65 occurrencesOrdovician — about 65 of 65 occurrencesOrdovician487–486 Mya — about 0.0 occurrences486–485 Mya — about 0.1 occurrences485–484 Mya — about 0.1 occurrences484–483 Mya — about 0.1 occurrences483–482 Mya — about 0.1 occurrences482–481 Mya — about 0.1 occurrences481–480 Mya — about 0.1 occurrences480–479 Mya — about 0.1 occurrences479–478 Mya — about 0.1 occurrences478–477 Mya — about 0.1 occurrences477–476 Mya — about 0.5 occurrences476–476 Mya — about 0.8 occurrences476–475 Mya — about 0.8 occurrences475–474 Mya — about 0.8 occurrences474–473 Mya — about 0.8 occurrences473–472 Mya — about 0.8 occurrences472–471 Mya — about 11 occurrences471–470 Mya — about 15 occurrences470–469 Mya — about 8 occurrences469–468 Mya — about 3 occurrences468–467 Mya — about 3 occurrences467–466 Mya — about 3 occurrences466–465 Mya — about 4 occurrences465–464 Mya — about 3 occurrences464–463 Mya — about 3 occurrences463–462 Mya — about 3 occurrences462–461 Mya — about 1 occurrence461–460 Mya — about 1.0 occurrences460–459 Mya — about 1.0 occurrences459–458 Mya — about 0.4 occurrences471.3 Mya465.9 Mya487.4 Mya457.6 Mya

65 occurrences of Microzarkodina 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

65 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

Toila — 55.55°N, 24.10°EToila — 59.43°N, 24.78°EKomstad — 56.42°N, 13.20°EÖland C — 57.11°N, 16.89°EDawan — 33.00°N, 111.00°EDawan — 30.86°N, 110.37°EVolkhov — 59.87°N, 31.43°ELas Aguaditas — 30.36°S, 68.80°WSan Juan — 30.36°S, 68.80°WSlaty Creek — 40.69°S, 172.49°EGuniutan — 33.00°N, 111.00°EIltyk — 68.00°N, 88.00°EVolkhov Stage — 59.87°N, 31.43°ELangevoja limestone — 57.35°N, 17.05°ESkoki — 56.63°N, 123.78°WTurnbull Mountain — 46.46°N, 66.77°WLashkarak — 36.21°N, 54.23°EVexin — 58.46°N, 42.51°EObukhovskaya — 58.13°N, 32.27°E

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The named rock units Microzarkodina has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Microzarkodina and its relatives

Ordovician

Where Microzarkodina and its relatives were recorded in the Ordovician.

Found in the same rock

204 taxa

The Paleobiology Database records 58 sites for Microzarkodina, 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 65 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 Microzarkodina

Source
GBIF
Credit
via GBIF
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Microzarkodina 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 itOzarkodinida through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lindström 1971