Streptocyclammina

Streptocyclammina is a genus of benthic forams with a flattened test from the Jurassic. The test usually starts off streptospiral hence the name, and becomes planispiral in the mature stage. Chambers are numerous per whorl, whorls become rapidly larger in peneropline fashion. Sutures between whorls are slightly indented, the periphery rounded. The wall is finely agglutinated, externally imperorate, internally with massive septa perforated by numerous apertures.

No picture of Streptocyclammina was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Streptocyclammina, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
ForaminiferaPBDB
Diet
omnivorePBDB, for Foraminifera
Life habit
semi-infaunalPBDB, for Foraminifera
Motility
stationaryPBDB, for Foraminifera

Time the record covers

At most 2.1 million years on record.

The one occurrence read is dated to somewhere between 143.1 Mya and 141 Mya, which is a dating window rather than a span.

Late Jurassic — about 0 of 1 occurrenceEarly Cretaceous — about 1 of 1 occurrenceEarly Cretaceous143–143 Mya — about 0.0 occurrences143–143 Mya — about 0.0 occurrences143–143 Mya — about 0.0 occurrences143–143 Mya — about 0.0 occurrences143–143 Mya — about 0.0 occurrences143–143 Mya — about 0.0 occurrences143–142 Mya — about 0.0 occurrences142–142 Mya — about 0.0 occurrences142–142 Mya — about 0.0 occurrences142–142 Mya — about 0.0 occurrences142–142 Mya — about 0.0 occurrences142–142 Mya — about 0.0 occurrences142–142 Mya — about 0.0 occurrences142–142 Mya — about 0.0 occurrences142–142 Mya — about 0.0 occurrences142–142 Mya — about 0.0 occurrences142–141 Mya — about 0.0 occurrences141–141 Mya — about 0.0 occurrences141–141 Mya — about 0.0 occurrences141–141 Mya — about 0.0 occurrences141–141 Mya — about 0.0 occurrences141–141 Mya — about 0.0 occurrences143.6 Mya140.5 Mya

1 occurrence of Streptocyclammina on record, most of them in the Early Cretaceous. 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

Lapos — 46.80°N, 25.80°E

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

Streptocyclammina and its relatives

Early Cretaceous

Where Streptocyclammina and its relatives were recorded in the Early Cretaceous.

Found in the same rock

The Paleobiology Database records no fossil sites for Streptocyclammina, so there is nothing to compare it with.

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 content0

No picture of Streptocyclammina was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Streptocyclammina, or no answer at all. This entry cannot say which.

No 3D scan of Streptocyclammina 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

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 itForaminifera through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.