Dicroidium
Searched as Dicroidium odontopteroides moltenense. The Paleobiology Database treats Dicroidium as the accepted name.
Taylor, Edith; Taylor, Thomas; Cuneo, Ruben; Daghlian, Charles; Puerta, Pablo; Buchanan, David · CC BY 4.0 · via GBIF. 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
- CorystospermaceaePBDB
- Diet
- "photoautotroph"PBDB, for Streptophyta
Time the record covers
At most 5.6 million years on record.
Every occurrence read is dated to somewhere between 247 Mya and 241.464 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Dicroidium on record, most of them in the Middle Triassic. 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
2 occurrences- Middle Triassic100%
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.
Found in
1 formation
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The named rock units Dicroidium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Dicroidium and its relatives
Middle TriassicWhere Dicroidium and its relatives were recorded in the Middle Triassic.
Found in the same rock
590 taxa- Gymnospermopsida49 sites
- Taeniopteris42 sites
- Heidiphyllum41 sites
- Pteridophyta38 sites
- Sphenobaiera38 sites
- Lepidopteris35 sites
- Equisetum32 sites
- Pteridopsida32 sites
- Pteruchus30 sites
- Yabeiella30 sites
- Fanerotheca26 sites
- Pseudoctenis25 sites
- Umkomasia25 sites
- Stachyopitys24 sites
- Ginkgoites22 sites
- Kannaskopifolia sp.21 sites
- Cladophlebis18 sites
- Fraxinopsis18 sites
- Peltaspermum18 sites
- Rissikia18 sites
- Dordrechtites sp.17 sites
- Muscites17 sites
- Telemachus16 sites
- Marchantites15 sites
The Paleobiology Database records 111 sites for Dicroidium, 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
2 references- A new freshwater limuloid from the Middle Triassic of New South Wales1
- The Middle Triassic flora from Benolong, near Dubbo, central-western New South Wales1
Each of the 2 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. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content2
Picture of Dicroidium
- Source
- GBIF
- Credit
- Taylor, Edith; Taylor, Thomas; Cuneo, Ruben; Daghlian, Charles; Puerta, Pablo; Buchanan, David
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC0 Public Domain
- Commercial use
- the licence allows it
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itCorystospermaceae through timeFormations of the Middle TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Gothan 1912