Micrantheum
Micrantheum is a genus of four species of flowering plant in the family Picrodendraceae and is endemic to Australia. Plants in the genus Micrantheum are heath-like, monoecious shrubs with simple leaves usually in groups of three, and flowers arranged singly or in small clusters in leaf axils, male flowers with three, six or nine stamens.
JJ Harrison ( https://www.jjharrison.com.au/ ) · CC BY-SA 3.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- PicrodendraceaePBDB
- Diet
- "photoautotroph"PBDB, for Angiospermae
Time the record covers
At least 33 million years on record.
The record covers at least 33.9 Mya to 774 ka. No occurrence read is dated outside 37.71 Mya to 0 Mya.
10 occurrences of Micrantheum on record, most of them in the Pleistocene. The Paleobiology Database records this as a living group. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
10 occurrences- Eocene10%
- Pleistocene90%
- Holoceneunder 1%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Micrantheum and its relatives
PleistoceneWhere Micrantheum and its relatives were recorded in the Pleistocene.
Found in the same rock
310 taxa- Acacia9 sites
- Casuarinaceae9 sites
- Cunoniaceae9 sites
- Cyathea9 sites
- Dodonaea9 sites
- Eucalyptus9 sites
- Loranthaceae9 sites
- Myrtaceae9 sites
- Poaceae9 sites
- Podocarpus9 sites
- Rutaceae9 sites
- Agathis8 sites
- Araucaria8 sites
- Archontophoenix8 sites
- Argyrodendron8 sites
- Asteraceae8 sites
- Callitris8 sites
- Chenopodiaceae8 sites
- Davalliaceae8 sites
- Drynaria8 sites
- Elaeocarpus8 sites
- Helicia8 sites
- Leptospermum8 sites
- Lonchocarpus8 sites
The Paleobiology Database records 10 sites for Micrantheum, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
3 references- A complete pollen record of the last 230 ka from Lynch's Crater, north-eastern Australia8
- Evidence of Pleistocene plant extinction and diversity from Regatta Point, western Tasmania, Australia1
- The Eocene flora of the Anglesea Locality, Victoria1
Each of the 10 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Micrantheum
- Source
- Wikipedia/Commons
- Credit
- JJ Harrison ( https://www.jjharrison.com.au/ )
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Micrantheum was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Micrantheum”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itPicrodendraceae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Desfontaines 1818