Leptaena fremonti

Leptaena fremonti

équipe des Fouilles du MnhnL · 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
LeptaenaPBDB
Diet
suspension feederPBDB, for Leptaena
Life habit
epifaunalPBDB, for Leptaena
Motility
stationaryPBDB, for Leptaena
Vision
blindPBDB, for Strophomenata
Environment
marinePBDB, for Lophophorata

Time the record covers

At most 2.4 million years on record.

Every occurrence read is dated to somewhere between 413.02 Mya and 410.62 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Devonian — about 12 of 12 occurrencesDevonian413–413 Mya — about 0.3 occurrences413–413 Mya — about 0.6 occurrences413–413 Mya — about 0.6 occurrences413–413 Mya — about 0.6 occurrences413–413 Mya — about 0.6 occurrences413–412 Mya — about 0.6 occurrences412–412 Mya — about 0.6 occurrences412–412 Mya — about 0.6 occurrences412–412 Mya — about 0.6 occurrences412–412 Mya — about 0.6 occurrences412–412 Mya — about 0.6 occurrences412–412 Mya — about 0.6 occurrences412–412 Mya — about 0.6 occurrences412–411 Mya — about 0.6 occurrences411–411 Mya — about 0.6 occurrences411–411 Mya — about 0.6 occurrences411–411 Mya — about 0.6 occurrences411–411 Mya — about 0.6 occurrences411–411 Mya — about 0.6 occurrences411–411 Mya — about 0.6 occurrences411–411 Mya — about 0.6 occurrences411–411 Mya — about 0.3 occurrences413.52 Mya410.12 Mya

12 occurrences of Leptaena fremonti on record, most of them in the Devonian. 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

Rabbit Hill Limestone — 39.20°N, 116.42°WRabbit Hill Limestone — 38.92°N, 116.50°WRabbit Hill — 39.20°N, 116.42°W

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

Leptaena fremonti and its relatives

Devonian

Where Leptaena fremonti and its relatives were recorded in the Devonian.

Found in the same rock

38 taxa

The Paleobiology Database records 12 sites for Leptaena fremonti, 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

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. 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 Leptaena fremonti

Source
GBIF
Credit
équipe des Fouilles du MnhnL
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Leptaena fremonti 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 itLeptaena through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Merriam 1973