Ilbandornis

Ilbandornis is an extinct genus of ostrich-sized dromornithid, a clade known casually as "demon ducks" because they are most closely related to the water fowl clade anseriformes. It was far more lightly built than other members of the family, indicating a more cursorial lifestyle; it was a fast runner. The majority of researchers consider Dromornithids to be herbivorous; this is borne out by molecular analysis of the gastroliths and eggshells of both Ilbandornis and the related Genyornis. While Ilbandornis and Genyornis have skulls of similar size to emus, other Dromornithids such as Dromornis have far more robust skulls with large beaks; these were previously considered an adaptation for carnivory, but their blunt edges and lack of hooked tip indicate that the species were herbivorous. It is therefore likely that the differences in skull shape are due to differences in diet. Ilbandornis went extinct sometime in the Miocene epoch.

No picture of Ilbandornis 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 Ilbandornis, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
DromornithidaePBDB
Diet
herbivorePBDB, for Galloanserae
Life habit
volantPBDB, for Galloanserae
Motility
actively mobilePBDB, for Theropoda
Environment
terrestrialPBDB, for Theropoda

Time the record covers

At least 2.7 million years on record.

The record covers at least 5.333 Mya to 2.58 Mya. No occurrence read is dated outside 11.63 Mya to 11.7 ka.

Miocene — about 1 of 2 occurrencesMiocenePliocene — about 0 of 2 occurrencesPleistocene — about 1 of 2 occurrencesPleistoceneHolocene — about 0 of 2 occurrences12–11 Mya — about 0.0 occurrences11–11 Mya — about 0.1 occurrences11–11 Mya — about 0.1 occurrences11–10 Mya — about 0.1 occurrences10–9.7 Mya — about 0.1 occurrences9.7–9.3 Mya — about 0.1 occurrences9.3–8.9 Mya — about 0.1 occurrences8.9–8.5 Mya — about 0.1 occurrences8.5–8.1 Mya — about 0.1 occurrences8.1–7.7 Mya — about 0.1 occurrences7.7–7.3 Mya — about 0.1 occurrences7.3–6.9 Mya — about 0.1 occurrences6.9–6.5 Mya — about 0.1 occurrences6.5–6.1 Mya — about 0.1 occurrences6.1–5.7 Mya — about 0.1 occurrences5.7–5.3 Mya — about 0.1 occurrences2.8–2.4 Mya — about 0.1 occurrences2.4–2.0 Mya — about 0.2 occurrences2.0–1.6 Mya — about 0.2 occurrences1.6–1.2 Mya — about 0.2 occurrences1.2–809 ka Mya — about 0.2 occurrences809 ka–404 ka Mya — about 0.2 occurrences404 ka–0 Mya — about 0.2 occurrences5.333 Mya2.58 Mya12.1 Mya0 Mya

2 occurrences of Ilbandornis on record. 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

Waite — 22.80°S, 134.43°E

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The named rock units Ilbandornis 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.

Found in the same rock

37 taxa

The Paleobiology Database records 2 sites for Ilbandornis, 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 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. 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 Ilbandornis 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 Ilbandornis, or no answer at all. This entry cannot say which.

No 3D scan of Ilbandornis 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 itDromornithidae through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Rich 1979