Explore this animal in Size of Extinct Animals ↗
303 / Precambrian
Horodyskia
Horodyskia moniliformis
Bead-like discs arranged in strings may record an early macroscopic colony.
View original image · 1536 × 1024- Time range
- About 1.48 billion years ago
- Final stage
- Mesoproterozoic
- Geographic range
- Shallow marine sediment · Western Australia
01 / DEFINITION & ECOLOGY
What was Horodyskia?
Horodyskia (Horodyskia moniliformis) was an extinct organism known from About 1.48 billion years ago, with a range in Shallow marine sediment · Western Australia.
Life and ecology
The units grew larger while becoming fewer, although whether they represent an organism remains debated.
02 / DISAPPEARANCE
Why did Horodyskia disappear?
This early macroscopic construction has no clear continuation in younger rocks.
03 / EVIDENCE
How do scientists know about Horodyskia?
Repeated strings and growth sequences support a biological origin, but cellular anatomy is absent.
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?
- Verified authoritative entity sources and added three responsive reconstruction sizes.
- Initial bilingual species record published.
06 / CORRECTIONS & ADDITIONS