Isognomon isognomoides

Isognomon isognomoides

via iDigBio · CC BY-NC-ND · via iDigBio. 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
IsognomonPBDB
Diet
suspension feederPBDB, for Isognomon
Life habit
epifaunalPBDB, for Isognomon
Motility
stationary, attachedPBDB, for Isognomon
Vision
blindPBDB, for Bivalvia
Environment
marine,brackishPBDB, for Ostreida

Time the record covers

At least 22 million years on record.

The record covers at least 184.2 Mya to 161.5 Mya. No occurrence read is dated outside 192.9 Mya to 154.8 Mya.

Early Jurassic — about 2 of 9 occurrencesEarly JurassicMiddle Jurassic — about 6 of 9 occurrencesMiddle JurassicLate Jurassic — about 1 of 9 occurrencesLate Jurassic194–192 Mya — about 0.1 occurrences192–191 Mya — about 0.2 occurrences191–190 Mya — about 0.2 occurrences190–188 Mya — about 0.2 occurrences188–187 Mya — about 0.2 occurrences187–186 Mya — about 0.2 occurrences186–184 Mya — about 0.2 occurrences184–183 Mya — about 0.1 occurrences183–182 Mya — about 0.1 occurrences182–180 Mya — about 0.1 occurrences180–179 Mya — about 0.1 occurrences179–178 Mya — about 0.1 occurrences178–176 Mya — about 0.1 occurrences176–175 Mya — about 0.1 occurrences175–174 Mya — about 0.3 occurrences174–173 Mya — about 0.3 occurrences173–171 Mya — about 0.3 occurrences171–170 Mya — about 2 occurrences170–169 Mya — about 2 occurrences169–167 Mya — about 0.9 occurrences167–166 Mya — about 0.5 occurrences166–165 Mya — about 0.2 occurrences162–161 Mya — about 0.1 occurrences161–159 Mya — about 0.2 occurrences159–158 Mya — about 0.2 occurrences158–157 Mya — about 0.2 occurrences157–155 Mya — about 0.2 occurrences155–154 Mya — about 0.1 occurrences184.2 Mya161.5 Mya193.7 Mya154 Mya

9 occurrences of Isognomon isognomoides on record, most of them in the Middle Jurassic. 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

9 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

4 formations

Strungulita — 45.43°N, 25.45°EHanifa — 25.02°N, 46.22°ECalcaires marneux inferieurs — 49.83°N, 4.20°EDogger — 54.42°N, 0.86°W

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The named rock units Isognomon isognomoides has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Isognomon isognomoides and its relatives

Middle Jurassic

Where Isognomon isognomoides and its relatives were recorded in the Middle Jurassic.

Found in the same rock

104 taxa

The Paleobiology Database records 9 sites for Isognomon isognomoides, 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

5 references

Each of the 9 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. 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 Isognomon isognomoides

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-NC-ND
Commercial use
the licence does not allow it

No 3D scan of Isognomon isognomoides 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 itIsognomon through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Stahl 1824)