Micragnostus brevispinus

No picture of Micragnostus brevispinus was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Micragnostus brevispinus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
MicragnostusPBDB
Diet
detritivorePBDB, for Agnostida
Life habit
epifaunalPBDB, for Agnostida
Motility
slow-movingPBDB, for Agnostida
Vision
blindPBDB, for Agnostidae

Time the record covers

At most 8.4 million years on record.

Every occurrence read is dated to somewhere between 495.2 Mya and 486.85 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Cambrian — about 12 of 12 occurrencesCambrianOrdovician — about 0 of 12 occurrences495–495 Mya — about 0.0 occurrences495–495 Mya — about 0.1 occurrences495–494 Mya — about 0.1 occurrences494–494 Mya — about 0.1 occurrences494–494 Mya — about 0.1 occurrences494–494 Mya — about 0.1 occurrences494–493 Mya — about 0.1 occurrences493–493 Mya — about 0.1 occurrences493–493 Mya — about 1 occurrence493–492 Mya — about 2 occurrences492–492 Mya — about 2 occurrences492–492 Mya — about 2 occurrences492–491 Mya — about 1.0 occurrences491–491 Mya — about 0.2 occurrences491–491 Mya — about 0.2 occurrences491–490 Mya — about 0.2 occurrences490–490 Mya — about 0.2 occurrences490–490 Mya — about 0.2 occurrences490–489 Mya — about 0.2 occurrences489–489 Mya — about 0.2 occurrences489–489 Mya — about 0.2 occurrences489–489 Mya — about 0.2 occurrences489–488 Mya — about 0.2 occurrences488–488 Mya — about 0.2 occurrences488–488 Mya — about 0.2 occurrences488–487 Mya — about 0.2 occurrences487–487 Mya — about 0.2 occurrences487–487 Mya — about 0.1 occurrences495.7 Mya486.4 Mya

12 occurrences of Micragnostus brevispinus on record, most of them in the Cambrian. 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

12 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

2 formations

Bestogai — 43.53°N, 69.95°EOgon'or — 71.28°N, 127.63°E

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

Micragnostus brevispinus and its relatives

Cambrian

Where Micragnostus brevispinus and its relatives were recorded in the Cambrian.

Found in the same rock

11 taxa

The Paleobiology Database records 3 sites for Micragnostus brevispinus, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

2 references

Each of the 12 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content0

No picture of Micragnostus brevispinus was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Micragnostus brevispinus, or no answer at all. This entry cannot say which.

No 3D scan of Micragnostus brevispinus 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.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itMicragnostus through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Lermontova 1951)