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90 / Mesozoic
Kronosaurus
Kronosaurus queenslandicus
A massive pliosaur skull powered attacks on large marine prey.
Structured expansion · editorial review pending
- Time range
- About 125–100 million years ago
- Final stage
- End of the Early Cretaceous
- Geographic range
- Australian inland sea
01 / ANSWER FIRST
What was Kronosaurus?
This archive records Kronosaurus under the scientific name Kronosaurus queenslandicus, with an age of About 125–100 million years ago and a range of Australian inland sea. A massive pliosaur skull powered attacks on large marine prey.
Kronosaurus used four flippers to accelerate through Australia’s inland sea. Its broad jaws could seize turtles and other marine reptiles.
02 / QUICK FACTS
Kronosaurus at a glance
- Scientific name
- Kronosaurus queenslandicus
- Age
- About 125–100 million years ago
- Last recorded stage
- End of the Early Cretaceous
- Known range
- Australian inland sea
- Broad group
- reptile
- Archive era
- Mesozoic
- Habitat signals
- Ocean
- Documented regions
- Oceania
03 / ANATOMY
How was Kronosaurus built?
Overall body plan
A massive pliosaur skull powered attacks on large marine prey.
Skull and feeding apparatus
The available record is interpreted through preserved proportions, attachment surfaces, wear and comparison with related organisms. For Kronosaurus, those observations must be separated from features added only for visual reconstruction.
Axial skeleton and locomotion
Kronosaurus used four flippers to accelerate through Australia’s inland sea. Its broad jaws could seize turtles and other marine reptiles.
Growth and individual variation
A single specimen does not define the whole species. Size, maturity, preservation and possible sex differences are considered before anatomical traits are treated as typical of Kronosaurus.
04 / DIET & BEHAVIOUR
How did Kronosaurus live?
Kronosaurus used four flippers to accelerate through Australia’s inland sea. Its broad jaws could seize turtles and other marine reptiles. This ecological reconstruction is strongest where anatomy, associated organisms and the depositional setting point in the same direction.
05 / DIET & BEHAVIOUR
What shaped its ecological limits?
Its populations depended on temperature, nesting habitat, prey or vegetation, and connected landscapes. Changes in any one factor did not necessarily cause immediate extinction, but interacting pressures could reduce range, recruitment and resilience.
06 / RANGE & HABITAT
Where and when did Kronosaurus live?
This archive currently lists About 125–100 million years ago; Australian inland sea. Fossil or historical occurrence data describe where evidence has been found, not every place the taxon once occupied. Species-level age and range limits still require source-specific review.
Documented geographic range
Australian inland sea. This boundary can change when specimens are reidentified or new localities are published.
Time window
About 125–100 million years ago, with the final recorded stage listed as End of the Early Cretaceous. Rock units and dating uncertainty mean the true biological range may extend beyond the known record.
Environmental setting
The archive uses the broad habitat labels Ocean. These labels help explore related records; a habitat reconstruction requires evidence from individual localities.
07 / FOSSIL EVIDENCE
What evidence supports reconstructions of Kronosaurus?
Primary record
Skulls, partial skeletons, bite evidence and stomach remains reveal its predatory role.
Comparative anatomy
Preserved structures are compared with close and functionally similar organisms. The method can constrain posture and function, but analogy alone cannot prove colour, behaviour or soft tissue.
Age and locality
Stratigraphy and occurrence records place Kronosaurus within About 125–100 million years ago and Australian inland sea. Reworked fossils and uncertain provenance are treated cautiously.
Open entity records
Links below connect the archive to available taxonomic and occurrence records. A matching name does not verify every ecological claim, and related-taxon links provide comparison rather than an exact species match.
08 / DISAPPEARANCE & DEBATE
Why did Kronosaurus disappear?
Retreating seas and marine faunal turnover removed its habitat.
The last fossil or observation marks the youngest evidence currently known, not necessarily the death of the final individual. Explanations are strongest when timing, environmental change and population biology agree; otherwise the profile preserves uncertainty instead of assigning a single dramatic cause.
09 / FREQUENTLY ASKED QUESTIONS
Kronosaurus FAQ
What was Kronosaurus?
This archive records Kronosaurus under the scientific name Kronosaurus queenslandicus, with an age of About 125–100 million years ago. A massive pliosaur skull powered attacks on large marine prey.
When did Kronosaurus live?
The current archive range is About 125–100 million years ago; its youngest recorded stage is End of the Early Cretaceous.
Where was Kronosaurus found?
The archive currently lists Australian inland sea. Species-level locality assignments and the full geographic range still require source-specific review.
How do scientists know about Kronosaurus?
Skulls, partial skeletons, bite evidence and stomach remains reveal its predatory role.
04 / SOURCES & FURTHER READING
Check the source record
Use the scientific name to compare taxonomy, occurrence records and the fossil record. Database coverage and classifications may differ.
05 / REVISION HISTORY
How has this record changed?
- Completed an AI-assisted bilingual audit of the archive record, corrected identified issues and clarified evidence limits; independent editorial review is pending.
- Expanded into a structured bilingual profile with anatomy, ecology, range, evidence, debate and FAQs; independent editorial review is pending.
- Verified authoritative entity sources and added three responsive reconstruction sizes.
- Initial bilingual species record published.
06 / CORRECTIONS & ADDITIONS