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190 / Mesozoic
Adams's Giant Lacewing
Makarkinia adamsi
Scaling from the surviving wing fragment suggests a wing as long as 16 centimeters, among the largest lacewings known.
Structured expansion · editorial review pending
- Time range
- About 113 million years ago
- Final stage
- Early Cretaceous
- Geographic range
- Tropical lagoon and dry woodland · Crato Formation, Brazil
01 / ANSWER FIRST
What was Adams's Giant Lacewing?
This archive records Adams's Giant Lacewing under the scientific name Makarkinia adamsi, with an age of About 113 million years ago and a range of Tropical lagoon and dry woodland · Crato Formation, Brazil. Scaling from the surviving wing fragment suggests a wing as long as 16 centimeters, among the largest lacewings known.
Makarkinia adamsi was a South American giant kalligrammatid. Broad wings may have carried bold eyespots, and adults may have visited reproductive structures of cycads or gnetaleans by day; total size is still inferred from fragments.
02 / QUICK FACTS
Adams's Giant Lacewing at a glance
- Scientific name
- Makarkinia adamsi
- Age
- About 113 million years ago
- Last recorded stage
- Early Cretaceous
- Known range
- Tropical lagoon and dry woodland · Crato Formation, Brazil
- Broad group
- insect
- Archive era
- Mesozoic
- Habitat signals
- Ocean · Forest
- Documented regions
- South America
03 / ANATOMY
How was Adams's Giant Lacewing built?
Overall body plan
Scaling from the surviving wing fragment suggests a wing as long as 16 centimeters, among the largest lacewings known.
Exoskeleton and segmentation
The available record is interpreted through preserved proportions, attachment surfaces, wear and comparison with related organisms. For Adams's Giant Lacewing, those observations must be separated from features added only for visual reconstruction.
Wings and sensory structures
Makarkinia adamsi was a South American giant kalligrammatid. Broad wings may have carried bold eyespots, and adults may have visited reproductive structures of cycads or gnetaleans by day; total size is still inferred from fragments.
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 Adams's Giant Lacewing.
04 / DIET & BEHAVIOUR
How did Adams's Giant Lacewing live?
Makarkinia adamsi was a South American giant kalligrammatid. Broad wings may have carried bold eyespots, and adults may have visited reproductive structures of cycads or gnetaleans by day; total size is still inferred from fragments. 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 vegetation, freshwater margins and atmospheric conditions. 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 Adams's Giant Lacewing live?
This archive currently lists About 113 million years ago; Tropical lagoon and dry woodland · Crato Formation, Brazil. 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
Tropical lagoon and dry woodland · Crato Formation, Brazil. This boundary can change when specimens are reidentified or new localities are published.
Time window
About 113 million years ago, with the final recorded stage listed as 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 · Forest. These labels help explore related records; a habitat reconstruction requires evidence from individual localities.
07 / FOSSIL EVIDENCE
What evidence supports reconstructions of Adams's Giant Lacewing?
Primary record
One incomplete Crato wing preserves dense crossveins; a better-preserved wing of the same genus confirms its affinity and constrains wing shape and eyespot placement.
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 Adams's Giant Lacewing within About 113 million years ago and Tropical lagoon and dry woodland · Crato Formation, Brazil. 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 Adams's Giant Lacewing disappear?
The rise of flowering plants, competition among pollinators and changing Cretaceous vegetation may have narrowed the niche of giant kalligrammatids.
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
Adams's Giant Lacewing FAQ
What was Adams's Giant Lacewing?
This archive records Adams's Giant Lacewing under the scientific name Makarkinia adamsi, with an age of About 113 million years ago. Scaling from the surviving wing fragment suggests a wing as long as 16 centimeters, among the largest lacewings known.
When did Adams's Giant Lacewing live?
The current archive range is About 113 million years ago; its youngest recorded stage is Early Cretaceous.
Where was Adams's Giant Lacewing found?
The archive currently lists Tropical lagoon and dry woodland · Crato Formation, Brazil. Species-level locality assignments and the full geographic range still require source-specific review.
How do scientists know about Adams's Giant Lacewing?
One incomplete Crato wing preserves dense crossveins; a better-preserved wing of the same genus confirms its affinity and constrains wing shape and eyespot placement.
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