Sycidium

Guido Sandberger (1821–1869) · Public Domain · via Wikidata/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
- SycidialesPBDB
- Diet
- "photoautotroph"PBDB, for Chlorophyta
- Life habit
- epifaunalPBDB, for Chlorophyta
- Motility
- stationary, attachedPBDB, for Chlorophyta
- Environment
- lagoonal,coastal,inner shelf,marine,brackish,freshwaterPBDB, for Chlorophyta
Time the record covers
At most 16 million years on record.
Every occurrence read is dated to somewhere between 387.95 Mya and 372.15 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Sycidium on record, most of them in the Devonian. 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
6 occurrences- Devonian100%
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
2 formations
Loading coastlines…
The named rock units Sycidium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Sycidium and its relatives
DevonianWhere Sycidium and its relatives were recorded in the Devonian.
Found in the same rock
27 taxa- Iranolepis ginteri2 sites
- Ischnacanthiformes2 sites
- Manberodus fortis2 sites
- Milesacanthus antarctica2 sites
- Nostolepis gaujensis2 sites
- Phoebodus latus2 sites
- Australolepis seddoni1 site
- Bothriolepididae1 site
- Chondrichthyes1 site
- Crinoidea1 site
- Ctenodonta1 site
- Diplacanthidae1 site
- Dipnoa1 site
- Eleutherokomma1 site
- Gastropoda1 site
- Holonema1 site
- Lingula1 site
- Mesotaxis1 site
- Moythomasia1 site
- Nuculoidea1 site
- Orvikuina1 site
- Palaeoneilo1 site
- Palmatolepis1 site
- Porolepidiformes1 site
The Paleobiology Database records 4 sites for Sycidium, 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
4 references- Early Frasnian acanthodians from central Iran2
- Correlation of the reef and basin facies of Frasnian age in the Krtiny HV-105 borehole in the Moravian Karst2
- Upper Devonian shallow-marine siliciclastic strata and associated fauna and flora, Lime Hills D-4 Quadrangle, southwest Alaska1
- Ecological characters of Devonian Leimingdong reef complex section in Lianyuan of Hunan (in Chinese)1
Each of the 6 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 the Paleobiology Database's own record for the work.
Media and terms
Media content1

Picture of Sycidium
- Source
- Wikidata/Commons
- Credit
- Guido Sandberger (1821–1869)
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itSycidiales through timeFormations of the DevonianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Sandberger 1849