Danielsavis nazensis
Danielsavis nazensis
View age-specific evidence and explanation
There are no currently eligible, unambiguously age-indexed published Occurrences for this Species. This does not indicate absence or rarity.
These counts describe published LBPS Occurrence records with directly assigned, unambiguous geological-unit mappings—not specimen abundance. Records at restricted Localities and ambiguous or unsupported ages are excluded. Species-level age labels are not used as proof of an age-specific Occurrence.
Specimen-based rarity requires comparable, correctly identified physical fossils, geological provenance and publication permissions. It does not estimate your chance of finding a fossil or collecting access.
Quick Identification
Look for: associated cranial and postcranial material showing the distinctive Danielsavis combination, rather than a single generic galloanserine limb bone. The bill, palate and major limb joints are the most useful parts for specialist comparison.
Summary
Danielsavis nazensis was an early member of the broad galloanserine radiation, the branch of modern birds containing gamebirds and waterfowl. It had a mosaic of characters rather than the full specialisations of either living group. Subsequent study found that the original interpretation as a basal anseriform was not strongly supported and highlighted galliform like derived features.
The animal was probably a primarily terrestrial or waterside generalist rather than a specialised duck. Its beak and postcranial anatomy permit ecological comparison, but the exact diet remains inferential; plant material, seeds and small invertebrates are reasonable possibilities for an early galloanserine of this build.
Diagnostic Features
- The skull and palate retain a distinctive mixture of early galloanserine characters.
- The postcranial skeleton includes features interpreted as derived similarities with galliform birds.
- The original basal Anseriformes interpretation is not supported by a unique anseriform character combination.
- The species is separated from other London Clay galloanserines by the combined cranial and limb morphology.
- Confident identification is strongest in associated partial skeletons preserving both cranial and postcranial elements.
Fossil Details
Similar Species
Recorded Fossil Sites
No fossil-site occurrences have yet been recorded for this species.