Leptoptilos robustus
Leptoptilos robustus is an extinct species of large-bodied stork belonging to the genus Leptoptilos that lived on the island of Flores in Indonesia during the Late Pleistocene. It stood at about 180 cm tall and weighed up to an estimated 16 kg (35 lb). Due to its large size, L. robustus likely occupied a terrestrial predatory or scavenging niche, likely heavily relying on the dwarfed elephant relative Stegodon florensis for a large part of its diet, and probably competing with Homo floresiensis, Komodo dragons and Trigonoceps vultures for food resources. The majority of the discoveries are concentrated in Liang Bua cave located slightly north of Ruteng in the East Nusa Tenggara province.

Meijer et al. (2022) · CC BY 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
- LeptoptilosPBDB
- Diet
- carnivorePBDB, for Leptoptilos
- Life habit
- volantPBDB, for Leptoptilos
- Motility
- actively mobilePBDB, for Theropoda
- Environment
- terrestrialPBDB, for Leptoptilos
Time the record covers
At most 118 thousand years on record.
Every occurrence read is dated to somewhere between 129 ka and 11.7 ka, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Leptoptilos robustus on record, most of them in the Pleistocene. 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- Pleistocene100%
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.
Leptoptilos robustus and its relatives
PleistoceneWhere Leptoptilos robustus and its relatives were recorded in the Pleistocene.
Found in the same rock
4 taxa- Aerodramus fuciphagus1 site
- Pluvialis fulva1 site
- Stegodon1 site
- Trigonoceps1 site
The Paleobiology Database records 5 sites for Leptoptilos robustus, 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
2 references- Late Pleistocene-Holocene non-passerine avifauna of Liang Bua (Flores, Indonesia)4
- A new species of giant marabou stork (Aves: Ciconiiformes) from the Pleistocene of Liang Bua, Flores (Indonesia)1
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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Leptoptilos robustus
- Source
- Wikipedia/Commons
- Credit
- Meijer et al. (2022)
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Leptoptilos robustus 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 itLeptoptilos through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Meijer and Awe Due 2010