Actinocyclus

Searched as Actinocyclus ellipticus javanicus. The Paleobiology Database treats Actinocyclus as the accepted name.

Actinocyclus is a genus of diatoms in the family Hemidiscaceae.

Actinocyclus

Kristian Peters http://www.korseby.net/outer/flora/algae/index.html · 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
HemidiscaceaePBDB
Diet
"photoautotroph"PBDB, for Bacillariophyceae
Environment
marine,brackish,freshwaterPBDB, for Bacillariophyceae

Time the record covers

At most 2.2 million years on record.

The one occurrence read is dated to somewhere between 13.82 Mya and 11.63 Mya, which is a dating window rather than a span.

Miocene — about 1 of 1 occurrenceMiocene14–14 Mya — about 0.0 occurrences14–14 Mya — about 0.0 occurrences14–14 Mya — about 0.0 occurrences14–13 Mya — about 0.0 occurrences13–13 Mya — about 0.0 occurrences13–13 Mya — about 0.0 occurrences13–13 Mya — about 0.0 occurrences13–13 Mya — about 0.0 occurrences13–13 Mya — about 0.0 occurrences13–13 Mya — about 0.0 occurrences13–13 Mya — about 0.0 occurrences13–13 Mya — about 0.0 occurrences13–13 Mya — about 0.0 occurrences13–12 Mya — about 0.0 occurrences12–12 Mya — about 0.0 occurrences12–12 Mya — about 0.0 occurrences12–12 Mya — about 0.0 occurrences12–12 Mya — about 0.0 occurrences12–12 Mya — about 0.0 occurrences12–12 Mya — about 0.0 occurrences12–12 Mya — about 0.0 occurrences12–12 Mya — about 0.0 occurrences14.32 Mya11.13 Mya

1 occurrence of Actinocyclus on record, most of them in the Miocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

1 occurrences

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

Calvert — 37.93°N, 77.51°W

Loading coastlines…

The named rock units Actinocyclus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Actinocyclus and its relatives

Miocene

Where Actinocyclus and its relatives were recorded in the Miocene.

Found in the same rock

646 taxa

The Paleobiology Database records at least 1,074 sites for Actinocyclus, and this reads 240 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

1 reference

Each of the 1 occurrence 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 Actinocyclus

Credit
Kristian Peters http://www.korseby.net/outer/flora/algae/index.html
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Actinocyclus was found in Sketchfab.

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

The description on this site

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 itHemidiscaceae through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Ehrenberg 1837