Loganellia

Loganellia is a genus of jawless fish which lived between 430 and 370 million years ago, during the Silurian and Devonian periods of the Paleozoic. Loganellia belonged to the Thelodonti class and like other thelodonts possessed scales instead of plate armor.

Loganellia

Ghedoghedo · CC BY-SA 4.0 · via Wikipedia/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
LoganelliidaePBDB
Motility
actively mobilePBDB, for Chordata

Time the record covers

At least 20 million years on record.

The record covers at least 440.5 Mya to 419.62 Mya. No occurrence read is dated outside 443.1 Mya to 410.62 Mya.

Ordovician — about 0 of 77 occurrencesSilurian — about 74 of 77 occurrencesSilurianDevonian — about 3 of 77 occurrencesDevonian444–443 Mya — about 1.0 occurrences443–441 Mya — about 2 occurrences441–440 Mya — about 2 occurrences440–439 Mya — about 3 occurrences439–438 Mya — about 3 occurrences438–437 Mya — about 3 occurrences437–436 Mya — about 3 occurrences436–435 Mya — about 3 occurrences435–434 Mya — about 3 occurrences434–432 Mya — about 3 occurrences432–431 Mya — about 3 occurrences431–430 Mya — about 5 occurrences430–429 Mya — about 5 occurrences429–428 Mya — about 4 occurrences428–427 Mya — about 3 occurrences427–426 Mya — about 3 occurrences426–425 Mya — about 3 occurrences425–423 Mya — about 4 occurrences423–422 Mya — about 5 occurrences422–421 Mya — about 5 occurrences421–420 Mya — about 6 occurrences420–419 Mya — about 3 occurrences419–418 Mya — about 0.5 occurrences418–417 Mya — about 0.5 occurrences417–416 Mya — about 0.5 occurrences416–414 Mya — about 0.5 occurrences414–413 Mya — about 0.5 occurrences413–412 Mya — about 0.2 occurrences412–411 Mya — about 0.1 occurrences411–410 Mya — about 0.1 occurrences440.5 Mya419.62 Mya443.8 Mya410 Mya

77 occurrences of Loganellia on record, most of them in the Silurian. 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

77 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

45 formations

Himmiste — 59.07°N, 24.79°EPatrick Burn — 55.65°N, 3.92°WPatrick Burn — 55.61°N, 3.99°WCape Phillips — 75.62°N, 94.47°WCape Phillips — 75.76°N, 94.39°WUduvere Beds — 59.07°N, 24.79°ESundvollen — 60.17°N, 10.30°ESundvollen — 59.92°N, 10.75°EKip Burn — 55.65°N, 3.92°WKip Burn — 55.60°N, 3.99°WGolomyannyj — 79.50°N, 97.00°EGolomyannyj — 79.50°N, 92.00°EWych — 52.47°N, 2.90°WWych — 52.18°N, 2.33°WKulinna — 62.06°N, 90.64°ERassokha — 60.19°N, 103.14°EDashtygoi — 51.25°N, 93.83°EChester Bjerg — 81.76°N, 61.77°WChester Bjerg — 81.75°N, 60.53°WJaagarahu — 58.45°N, 22.56°EJaagarahu — 58.29°N, 22.30°EMaizass — 57.03°N, 78.35°EVesiku Beds — 59.07°N, 24.79°ELoo Beds — 59.07°N, 24.79°EIvane Suite — 48.62°N, 25.87°ESlot Burn — 55.65°N, 3.92°WFish Bed — 55.52°N, 3.98°WWhitcliffe — 52.37°N, 2.72°WDownton Castle Sandstone — 52.37°N, 2.73°WTemeside Shale — 52.37°N, 2.73°WKilbride — 53.53°N, 9.42°WSamojlovich — 79.50°N, 97.00°E

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The named rock units Loganellia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 21 further formations hold fewer occurrences each and are not listed. 15 occurrences have no formation on record, which is common for older literature.

Loganellia and its relatives

Silurian

Where Loganellia and its relatives were recorded in the Silurian.

Found in the same rock

290 taxa

The Paleobiology Database records 60 sites for Loganellia, 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

24 references

Each of the 77 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. 12 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 Loganellia

Credit
Ghedoghedo
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itLoganelliidae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Fredholm 1990