Hesperornis
E698371
Hesperornis was a large, flightless, toothed seabird from the Late Cretaceous period known for its specialized diving adaptations.
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
extinct genus of birds
ⓘ
ornithurine bird ⓘ prehistoric seabird ⓘ theropod dinosaur ⓘ |
| adaptation |
dense bones aiding diving
ⓘ
posteriorly placed legs for propulsion ⓘ specialized diving morphology ⓘ |
| approximateAgeRange | about 89 to 72 million years ago ⓘ |
| bodyLength | about 1.5 to 1.8 meters ⓘ |
| class | Aves NERFINISHED ⓘ |
| continent | North America ⓘ |
| diet |
fish
ⓘ
small marine animals ⓘ |
| extinctionStatus | extinct ⓘ |
| family | Hesperornithidae NERFINISHED ⓘ |
| feedingMode | piscivorous ⓘ |
| fossilCountry |
Canada
NERFINISHED
ⓘ
United States NERFINISHED ⓘ |
| fossilSite |
Kansas
NERFINISHED
ⓘ
Manitoba NERFINISHED ⓘ South Dakota NERFINISHED ⓘ |
| geologicalFormation |
Niobrara Formation
NERFINISHED
ⓘ
Pierre Shale ⓘ |
| habitat |
epicontinental seas
ⓘ
marine environment ⓘ |
| kingdom | Animalia ⓘ |
| livedDuringStage |
Campanian
ⓘ
Coniacian ⓘ Santonian ⓘ |
| locomotion |
diving
ⓘ
flightless ⓘ |
| namedBy | Othniel Charles Marsh NERFINISHED ⓘ |
| notableFeature |
lobed feet adapted for swimming
ⓘ
powerful hind limbs ⓘ strongly reduced wings ⓘ toothed beak ⓘ |
| order | Hesperornithiformes NERFINISHED ⓘ |
| phylum | Chordata ⓘ |
| reproduction | oviparous ⓘ |
| resembles |
modern grebes
ⓘ
modern loons ⓘ |
| skeletonType | highly specialized for aquatic life ⓘ |
| taxonRank | genus ⓘ |
| timePeriod | Late Cretaceous ⓘ |
| toothLocation |
grooves in the lower jaw
ⓘ
maxilla ⓘ |
| typeSpecies | Hesperornis regalis NERFINISHED ⓘ |
| wingCapability | incapable of powered flight ⓘ |
| yearDescribed | 1872 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.