View original imageThis is an original generative reconstruction, not a photograph or scientific plate.
155 / Mesozoic
Araucaria mirabilis
Araucaria mirabilis
Tall conifers bore nearly spherical cones whose internal scales and ovules were silicified by volcanic landscapes.
Structured expansion · editorial review pending
- Time range
- About 160 million years ago
- Final stage
- Middle Jurassic
- Geographic range
- Southern Gondwanan forest · Patagonia, Argentina
01 / ANSWER FIRST
What was Araucaria mirabilis?
This archive records Araucaria mirabilis under the scientific name Araucaria mirabilis, with an age of About 160 million years ago and a range of Southern Gondwanan forest · Patagonia, Argentina. Tall conifers bore nearly spherical cones whose internal scales and ovules were silicified by volcanic landscapes.
Araucaria mirabilis grew in Jurassic Patagonia with spirally scaled branches. Large cones packed many seed scales, each carrying one seed, and resembled the bunya section of living araucarians.
02 / QUICK FACTS
Araucaria mirabilis at a glance
- Scientific name
- Araucaria mirabilis
- Age
- About 160 million years ago
- Last recorded stage
- Middle Jurassic
- Known range
- Southern Gondwanan forest · Patagonia, Argentina
- Broad group
- plant
- Archive era
- Mesozoic
- Habitat signals
- Forest
- Documented regions
- South America
03 / ANATOMY
How was Araucaria mirabilis built?
Overall body plan
Tall conifers bore nearly spherical cones whose internal scales and ovules were silicified by volcanic landscapes.
Growth architecture
The available record is interpreted through preserved proportions, attachment surfaces, wear and comparison with related organisms. For Araucaria mirabilis, those observations must be separated from features added only for visual reconstruction.
Reproductive structures
Araucaria mirabilis grew in Jurassic Patagonia with spirally scaled branches. Large cones packed many seed scales, each carrying one seed, and resembled the bunya section of living araucarians.
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 Araucaria mirabilis.
04 / DIET & BEHAVIOUR
How did Araucaria mirabilis live?
Araucaria mirabilis grew in Jurassic Patagonia with spirally scaled branches. Large cones packed many seed scales, each carrying one seed, and resembled the bunya section of living araucarians. 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 plant communities, soils, water availability and climate. 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 Araucaria mirabilis live?
This archive currently lists About 160 million years ago; Southern Gondwanan forest · Patagonia, Argentina. 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
Southern Gondwanan forest · Patagonia, Argentina. This boundary can change when specimens are reidentified or new localities are published.
Time window
About 160 million years ago, with the final recorded stage listed as Middle Jurassic. 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 Forest. These labels help explore related records; a habitat reconstruction requires evidence from individual localities.
07 / FOSSIL EVIDENCE
What evidence supports reconstructions of Araucaria mirabilis?
Primary record
Cerro Cuadrado's petrified branches and hundreds of cones preserve scales, ovules and occasional embryos in three dimensions.
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 Araucaria mirabilis within About 160 million years ago and Southern Gondwanan forest · Patagonia, Argentina. 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 Araucaria mirabilis disappear?
Volcanism, climate shifts and conifer-community turnover in the later Jurassic ended this species.
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
Araucaria mirabilis FAQ
What was Araucaria mirabilis?
This archive records Araucaria mirabilis under the scientific name Araucaria mirabilis, with an age of About 160 million years ago. Tall conifers bore nearly spherical cones whose internal scales and ovules were silicified by volcanic landscapes.
When did Araucaria mirabilis live?
The current archive range is About 160 million years ago; its youngest recorded stage is Middle Jurassic.
Where was Araucaria mirabilis found?
The archive currently lists Southern Gondwanan forest · Patagonia, Argentina. Species-level locality assignments and the full geographic range still require source-specific review.
How do scientists know about Araucaria mirabilis?
Cerro Cuadrado's petrified branches and hundreds of cones preserve scales, ovules and occasional embryos in three dimensions.
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