Janassa unguicula
No picture of Janassa unguicula 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 Janassa unguicula, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- JanassaPBDB
- Diet
- carnivorePBDB, for Petalodontiformes
- Life habit
- nektonicPBDB, for Petalodontiformes
- Motility
- actively mobilePBDB, for Petalodontiformes
Time the record covers
At least 43 million years on record.
The record covers at least 303.7 Mya to 259.857 Mya. No occurrence read is dated outside 307 Mya to 254.14 Mya.
6 occurrences of Janassa unguicula on record, most of them in the Permian. 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
6 occurrences- Carboniferous17%
- Permian83%
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
2 formations
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The named rock units Janassa unguicula has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Janassa unguicula and its relatives
PermianWhere Janassa unguicula and its relatives were recorded in the Permian.
Found in the same rock
44 taxa- Polidevcia bellistriata4 sites
- Prodentalium canna3 sites
- Crassidonta stuckenbergi2 sites
- Deltodus mercurei2 sites
- Helodus subpolitus2 sites
- Nucula pulchella2 sites
- Orbiculoidea utahensis2 sites
- Permophorus2 sites
- Acondylacanthus browni1 site
- Agassizodus variabilis1 site
- Bathymyonia nevadensis1 site
- Bellerophon depauperatus1 site
- Cancrinella phosphatica1 site
- Chondrichthyes1 site
- Cochliodontidae1 site
- Composita gigantea1 site
- Composita mexicana1 site
- Composita plana1 site
- Composita subtilita1 site
- Condrathyris perplexa1 site
- Crinoidea1 site
- Crurithyris arcuata1 site
- Ctenacanthus amblyxiphias1 site
- Ctenacanthus obscuracostatus1 site
The Paleobiology Database records 6 sites for Janassa unguicula, 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
4 references- Paleontology and stratigraphy of the Phosphoria Formation2
- The Lower Embar of Wyoming and Its Fauna2
- Fish fauna of the middle Phosphoria Formation1
- Carboniferous fishes from the central western States1
Each of the 6 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 Janassa unguicula 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 Janassa unguicula, or no answer at all. This entry cannot say which.
No 3D scan of Janassa unguicula 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itJanassa through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Eastman 1903