Alternognathus

Alternognathus is an extinct conodont genus in the family Elictognathidae. An extensive study on its population dynamics and lifespan has recently been published.

No picture of Alternognathus was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Alternognathus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
ConodontophoridaPBDB
Diet
carnivorePBDB, for Conodontophorida
Life habit
nektobenthicPBDB, for Conodontophorida
Motility
actively mobilePBDB, for Conodontophorida

Time the record covers

At most 14 million years on record.

Every occurrence read is dated to somewhere between 372.15 Mya and 358.86 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Devonian — about 6 of 6 occurrencesDevonianCarboniferous — about 0 of 6 occurrences372–372 Mya — about 0.4 occurrences372–371 Mya — about 0.4 occurrences371–371 Mya — about 0.4 occurrences371–370 Mya — about 0.4 occurrences370–370 Mya — about 0.4 occurrences370–369 Mya — about 0.4 occurrences369–369 Mya — about 0.4 occurrences369–368 Mya — about 0.3 occurrences368–368 Mya — about 0.1 occurrences368–367 Mya — about 0.1 occurrences367–367 Mya — about 0.1 occurrences367–366 Mya — about 0.1 occurrences366–366 Mya — about 0.1 occurrences366–366 Mya — about 0.1 occurrences366–365 Mya — about 0.1 occurrences365–365 Mya — about 0.1 occurrences365–364 Mya — about 0.1 occurrences364–364 Mya — about 0.1 occurrences364–363 Mya — about 0.1 occurrences363–363 Mya — about 0.1 occurrences363–362 Mya — about 0.1 occurrences362–362 Mya — about 0.1 occurrences362–361 Mya — about 0.1 occurrences361–361 Mya — about 0.1 occurrences361–360 Mya — about 0.1 occurrences360–360 Mya — about 0.1 occurrences360–359 Mya — about 0.1 occurrences359–359 Mya — about 0.1 occurrences372.6 Mya358.4 Mya

6 occurrences of Alternognathus 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

6 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.

Alternognathus and its relatives

Devonian

Where Alternognathus and its relatives were recorded in the Devonian.

Found in the same rock

15 taxa

The Paleobiology Database records 5 sites for Alternognathus, 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

3 references

Each of the 6 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 content0

No picture of Alternognathus was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Alternognathus, or no answer at all. This entry cannot say which.

No 3D scan of Alternognathus 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.

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 itConodontophorida through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.