Antarctilamna

Antarctilamna is an extinct genus of Devonian cartilaginous fish originally exemplified by Antarctilamna prisca from South Eastern Australia and Antarctica. The latest occurring described species is Antarctilamna ultima from the Waterloo Farm lagerstätte in South Africa. Antarctilamna has robust ctenacanthid-like spines which lack a deep insertion area, and are borne in front of the first dorsal fin; in addition to distinctive diplodont teeth with small intermediate cusps. Antarctilamna-like spines, known from the Bunga Beds locality in Australia have been ascribed to A. prisca.

Antarctilamna

DiBgd · 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
AntarctilamnidaePBDB
Diet
carnivorePBDB, for Chondrichthyes
Life habit
nektonicPBDB, for Chondrichthyes
Motility
actively mobilePBDB, for Chondrichthyes

Time the record covers

At least 21 million years on record.

The record covers at least 393.47 Mya to 372.15 Mya. No occurrence read is dated outside 419.62 Mya to 358.86 Mya.

Silurian — about 0 of 5 occurrencesDevonian — about 5 of 5 occurrencesDevonianCarboniferous — about 0 of 5 occurrences421–419 Mya — about 0.0 occurrences419–417 Mya — about 0.1 occurrences417–415 Mya — about 0.1 occurrences415–412 Mya — about 0.1 occurrences412–410 Mya — about 0.1 occurrences410–408 Mya — about 0.1 occurrences408–406 Mya — about 0.1 occurrences406–404 Mya — about 0.1 occurrences404–402 Mya — about 0.1 occurrences402–400 Mya — about 0.1 occurrences400–398 Mya — about 0.1 occurrences398–396 Mya — about 0.1 occurrences396–393 Mya — about 0.1 occurrences389–387 Mya — about 0.3 occurrences387–385 Mya — about 0.7 occurrences385–383 Mya — about 0.7 occurrences383–381 Mya — about 0.3 occurrences381–379 Mya — about 0.1 occurrences379–377 Mya — about 0.1 occurrences377–374 Mya — about 0.1 occurrences374–372 Mya — about 0.1 occurrences372–370 Mya — about 0.2 occurrences370–368 Mya — about 0.2 occurrences368–366 Mya — about 0.2 occurrences366–364 Mya — about 0.2 occurrences364–362 Mya — about 0.2 occurrences362–360 Mya — about 0.2 occurrences360–358 Mya — about 0.1 occurrences393.47 Mya372.15 Mya421 Mya358 Mya

5 occurrences of Antarctilamna 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

5 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

3 formations

Witpoort — 33.00°S, 26.00°EWitpoort — 33.32°S, 26.54°ECatavi — 18.45°S, 64.80°WAztec Siltstone — 78.54°S, 158.43°E

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The named rock units Antarctilamna 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.

Antarctilamna and its relatives

Devonian

Where Antarctilamna and its relatives were recorded in the Devonian.

Found in the same rock

54 taxa

The Paleobiology Database records 5 sites for Antarctilamna, 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 5 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 Antarctilamna

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

No 3D scan of Antarctilamna was found in MorphoSource and Sketchfab.

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

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 itAntarctilamnidae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Young 1982