Mimella borealis
No picture of Mimella borealis was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Mimella borealis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- MimellaPBDB
- Diet
- suspension feederPBDB, for Orthida
- Life habit
- epifaunalPBDB, for Orthida
- Motility
- stationary, attachedPBDB, for Orthida
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 22 million years on record.
Every occurrence read is dated to somewhere between 471.3 Mya and 449.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
34 occurrences of Mimella borealis 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
34 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
5 formations
- Crown Point Formation · Chazy Group3
- Aylmer Formation2
- Lebanon Limestone Formation1
- Laval Formation · Chazy Group1
- Valcour Formation · Chazy Group1
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The named rock units Mimella borealis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 26 occurrences have no formation on record, which is common for older literature.
Mimella borealis and its relatives
OrdovicianWhere Mimella borealis and its relatives were recorded in the Ordovician.
Found in the same rock
174 taxa- Eridotrypa18 sites
- Hebertella14 sites
- Anazyga recurvirostra13 sites
- Batostoma13 sites
- Constellaria13 sites
- Dekayella13 sites
- Hallopora13 sites
- Hebertella frankfortensis13 sites
- Hebertella occidentalis13 sites
- Liospira13 sites
- Orthoceras13 sites
- Rhinidictya13 sites
- Lophospira12 sites
- Rhynchotrema increbescens12 sites
- Homotrypa11 sites
- Prismostylus fibratum11 sites
- Zygospira modesta11 sites
- Multicostella platys9 sites
- Rafinesquina alternata9 sites
- Raphistoma stamineum9 sites
- Escharopora7 sites
- Homotrypa curvata praecipta7 sites
- Zygospira7 sites
- Ambonychia6 sites
The Paleobiology Database records 33 sites for Mimella borealis, 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
5 references- Zonation of the Middle and Upper Ordovician strata in northwestern Georgia18
- The Chazy Formation and its fauna12
- The Brachiopoda and Ostracoda of the Chazyan2
- Cavity-dwelling biota in Middle Ordovician (Chazy) bryozoan mounds from Quebec1
- Pre-Chattanooga stratigraphy in Central Tennessee1
Each of the 34 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 content0
No picture of Mimella borealis was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Mimella borealis, or no answer at all. This entry cannot say which.
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 itMimella through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Billings 1859)