Macrosemius rostratus

Macrosemius rostratus

Agassiz, 1843 · CC BY-SA 4.0 · via Wikidata/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
MacrosemiusPBDB
Motility
actively mobilePBDB, for Osteichthyes

Time the record covers

At most 9.8 million years on record.

Every occurrence read is dated to somewhere between 154.8 Mya and 145.06 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Jurassic — about 2 of 2 occurrencesLate Jurassic155–155 Mya — about 0.0 occurrences155–154 Mya — about 0.1 occurrences154–154 Mya — about 0.1 occurrences154–154 Mya — about 0.1 occurrences154–153 Mya — about 0.1 occurrences153–153 Mya — about 0.1 occurrences153–152 Mya — about 0.1 occurrences152–152 Mya — about 0.1 occurrences152–152 Mya — about 0.1 occurrences152–151 Mya — about 0.1 occurrences151–151 Mya — about 0.1 occurrences151–151 Mya — about 0.1 occurrences151–150 Mya — about 0.1 occurrences150–150 Mya — about 0.1 occurrences150–150 Mya — about 0.1 occurrences150–149 Mya — about 0.1 occurrences149–149 Mya — about 0.1 occurrences149–148 Mya — about 0.1 occurrences148–148 Mya — about 0.1 occurrences148–148 Mya — about 0.1 occurrences148–147 Mya — about 0.1 occurrences147–147 Mya — about 0.1 occurrences147–147 Mya — about 0.1 occurrences147–146 Mya — about 0.1 occurrences146–146 Mya — about 0.1 occurrences146–146 Mya — about 0.1 occurrences146–145 Mya — about 0.1 occurrences145–145 Mya — about 0.1 occurrences155.3 Mya144.6 Mya

2 occurrences of Macrosemius rostratus on record, most of them in the Late 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

2 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

1 formation

Solnhofen — 48.91°N, 11.14°E

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The named rock units Macrosemius rostratus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Macrosemius rostratus and its relatives

Late Jurassic

Where Macrosemius rostratus and its relatives were recorded in the Late Jurassic.

Found in the same rock

20 taxa

The Paleobiology Database records 2 sites for Macrosemius rostratus, 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

1 reference

Each of the 2 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 content1

Picture of Macrosemius rostratus

Credit
Agassiz, 1843
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Macrosemius rostratus 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 itMacrosemius through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Agassiz 1834