Tetranota macra
No picture of Tetranota macra 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 Tetranota macra, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- TetranotaPBDB
- Diet
- detritivorePBDB, for Plectonotidae
- Life habit
- epifaunalPBDB, for Plectonotidae
- Motility
- actively mobilePBDB, for Plectonotidae
- Vision
- limitedPBDB, for Gastropoda
- Environment
- marinePBDB, for Bellerophontida
Time the record covers
At most 7.7 million years on record.
Every occurrence read is dated to somewhere between 457.3 Mya and 449.6 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
9 occurrences of Tetranota macra 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
9 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
8 formations
- Quimbys Mill Formation2
- Platteville Formation1
- Decorah Shale Formation1
- Pecatonica Formation1
- Mifflin Formation1
- Grand Detour Formation1
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The named rock units Tetranota macra has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Tetranota macra and its relatives
OrdovicianWhere Tetranota macra and its relatives were recorded in the Ordovician.
Found in the same rock
108 taxa- Clathrospira subconica9 sites
- Eunema centralis9 sites
- Eunema helicteres9 sites
- Lophospira serrulata9 sites
- Lophospira ventricosa9 sites
- Paraliospira supracingulata9 sites
- Tetranota obsoleta9 sites
- Fusispira spicula8 sites
- Helicotoma planulata8 sites
- Holopea ampla8 sites
- Holopea concinnula8 sites
- Holopea insignis8 sites
- Holopea rotunda8 sites
- Hormotoma gracilis8 sites
- Lesueurilla beloitensis8 sites
- Lophospira decursa8 sites
- Lophospira perangulata8 sites
- Loxobucania emmonsi8 sites
- Maclurina bigsbyi8 sites
- Maclurites depressus8 sites
- Maclurites nitidus8 sites
- Ophiletina sublaxa8 sites
- Phragmolites fimbriata8 sites
- Pterotheca attenuata8 sites
The Paleobiology Database records 9 sites for Tetranota macra, 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
2 references- Stratigraphic ranges of Middle and Late Ordovician Gastropoda and Monoplacophora of Minnesota8
- The Lower Silurian Gastropoda of Minnesota1
Each of the 9 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 content0
No picture of Tetranota macra 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 Tetranota macra, or no answer at all. This entry cannot say which.
No 3D scan of Tetranota macra 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itTetranota through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ulrich and Scofield 1897