Sigmobolbina

via GBIF · CC BY-NC 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
- PerspicillinaePBDB
- Diet
- suspension feederPBDB, for Palaeocopida
- Life habit
- epifaunalPBDB, for Palaeocopida
- Motility
- actively mobilePBDB, for Ostracoda
- Vision
- limitedPBDB, for Ostracoda
- Environment
- marinePBDB, for Ostracoda
Time the record covers
At least 8.7 million years on record.
The record covers at least 458.2 Mya to 449.5 Mya. No occurrence read is dated outside 461.4 Mya to 445.2 Mya.
28 occurrences of Sigmobolbina on record, most of them in the Ordovician. 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
28 occurrences- Ordovician100%
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
12 formations
- Dalby Formation6
- Furudal Formation3
- Zagornyi Formation3
- Folkeslunda Formation2
- Gullhögen Formation2
- Segerstad Limestone Formation1
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The named rock units Sigmobolbina has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.
Sigmobolbina and its relatives
OrdovicianWhere Sigmobolbina and its relatives were recorded in the Ordovician.
Found in the same rock
278 taxa- Remopleurides16 sites
- Euprimites14 sites
- Laccochilina13 sites
- Steusloffia13 sites
- Tallinnella11 sites
- Uhakiella11 sites
- Illaenus10 sites
- Nileus10 sites
- Trinodus10 sites
- Conchoprimitia8 sites
- Lonchodomas8 sites
- Sigmoopsis8 sites
- Echinosphaerites7 sites
- Baltonotella6 sites
- Clisospira6 sites
- Onniella6 sites
- Asaphus5 sites
- Leptellina5 sites
- Panderia5 sites
- Pseudobasilicus5 sites
- Pseudoclimacograptus5 sites
- Sphaerocoryphe5 sites
- Telephina5 sites
- Ampyx4 sites
The Paleobiology Database records 27 sites for Sigmobolbina, 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
10 references- The Subdivision of the Ordovician in the Berzini boring (South-East Latvia)4
- Swedish Late Ordovician marine benthic assemblages and their bearing on brachiopod biogeography4
- The Viruan (Middle Ordovician) of Kinnekulle and northern Billingen, Vastergotland4
- Ordovician of the siberian Platform: Key section on the Kulumbe River3
- The Lower and Middle Viruan sequence in two borings in Ostergotland, central Sweden3
- The Viruan (Middle Ordovician) of Oland3
- Ordovician of the Tungus Basin (Siberian Platform). Field excursion guidebook2
- Lower and Middle Viruan (Middle Ordovician) of the Siljan district2
- The Chasmops Series of the Kullatorp Core2
- Upper Ordovician Ostracods from the Oslo region, Norway1
Each of the 28 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 Sigmobolbina
- Source
- GBIF
- Credit
- via GBIF
- Licence
- CC BY-NC 4.0
- Commercial use
- the licence does not allow 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 itPerspicillinae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Henningsmoen 1953