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156 / Recently extinct
Saint Helena Dwarf Ebony
Trochetiopsis melanoxylon
Silvery hairy leaves and small pale flowers once covered dry slopes; the last reliable collection was made in 1771.
Structured expansion · editorial review pending
- Time range
- Prehistory–about 1771
- Final stage
- 18th century
- Geographic range
- Dry northern lowlands of Saint Helena, South Atlantic
01 / ANSWER FIRST
What was Saint Helena Dwarf Ebony?
This archive records Saint Helena Dwarf Ebony under the scientific name Trochetiopsis melanoxylon, with an age of Prehistory–about 1771 and a range of Dry northern lowlands of Saint Helena, South Atlantic. Silvery hairy leaves and small pale flowers once covered dry slopes; the last reliable collection was made in 1771.
Trochetiopsis melanoxylon was a mallow-family shrub, not a true ebony. It occupied the island's rain-shadow slopes and differed from living relatives in its smaller flowers and densely hairy leaf surfaces.
02 / QUICK FACTS
Saint Helena Dwarf Ebony at a glance
- Scientific name
- Trochetiopsis melanoxylon
- Age
- Prehistory–about 1771
- Last recorded stage
- 18th century
- Known range
- Dry northern lowlands of Saint Helena, South Atlantic
- Broad group
- plant
- Archive era
- Recently extinct
- Habitat signals
- plant communities, soils, water availability and climate
- Documented regions
- Dry northern lowlands of Saint Helena, South Atlantic
03 / ANATOMY
How was Saint Helena Dwarf Ebony built?
Overall body plan
Silvery hairy leaves and small pale flowers once covered dry slopes; the last reliable collection was made in 1771.
Growth architecture
The available record is interpreted through preserved proportions, attachment surfaces, wear and comparison with related organisms. For Saint Helena Dwarf Ebony, those observations must be separated from features added only for visual reconstruction.
Reproductive structures
Trochetiopsis melanoxylon was a mallow-family shrub, not a true ebony. It occupied the island's rain-shadow slopes and differed from living relatives in its smaller flowers and densely hairy leaf surfaces.
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 Saint Helena Dwarf Ebony.
04 / DIET & BEHAVIOUR
How did Saint Helena Dwarf Ebony live?
Trochetiopsis melanoxylon was a mallow-family shrub, not a true ebony. It occupied the island's rain-shadow slopes and differed from living relatives in its smaller flowers and densely hairy leaf surfaces. 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 Saint Helena Dwarf Ebony live?
This archive currently lists Prehistory–about 1771; Dry northern lowlands of Saint Helena, South Atlantic. 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
Dry northern lowlands of Saint Helena, South Atlantic. This boundary can change when specimens are reidentified or new localities are published.
Time window
Prehistory–about 1771, with the final recorded stage listed as 18th century. 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 plant communities, soils, water availability and climate. These labels help explore related records; a habitat reconstruction requires evidence from individual localities.
07 / FOSSIL EVIDENCE
What evidence supports reconstructions of Saint Helena Dwarf Ebony?
Primary record
Banks and Solander's 1771 specimens, a few early herbarium sheets, botanical art and pollen are the final evidence.
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 Saint Helena Dwarf Ebony within Prehistory–about 1771 and Dry northern lowlands of Saint Helena, South Atlantic. 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 Saint Helena Dwarf Ebony disappear?
Goats introduced by Portuguese sailors, followed by sustained browsing and lowland clearance, destroyed its island 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
Saint Helena Dwarf Ebony FAQ
What was Saint Helena Dwarf Ebony?
This archive records Saint Helena Dwarf Ebony under the scientific name Trochetiopsis melanoxylon, with an age of Prehistory–about 1771. Silvery hairy leaves and small pale flowers once covered dry slopes; the last reliable collection was made in 1771.
When did Saint Helena Dwarf Ebony live?
The current archive range is Prehistory–about 1771; its youngest recorded stage is 18th century.
Where was Saint Helena Dwarf Ebony found?
The archive currently lists Dry northern lowlands of Saint Helena, South Atlantic. Species-level locality assignments and the full geographic range still require source-specific review.
How do scientists know about Saint Helena Dwarf Ebony?
Banks and Solander's 1771 specimens, a few early herbarium sheets, botanical art and pollen are the final evidence.
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