Janiceps
No picture of Janiceps 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 Janiceps, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- JanicepsinaePBDB
- Diet
- suspension feederPBDB, for Athyrididina
- Life habit
- low-level epifaunalPBDB, for Athyrididina
- Motility
- stationaryPBDB, for Athyrididina
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 8 million years on record.
Every occurrence read is dated to somewhere between 259.857 Mya and 251.902 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
33 occurrences of Janiceps 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
33 occurrences- Permian100%
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
9 formations
- Werfen Formation16
- Bellerophon Formation5
- Julfa Formation3
- Ali Bashi Formation2
- Akhura Formation2
- Ali Bashi Formation2
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The named rock units Janiceps has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Janiceps and its relatives
PermianWhere Janiceps and its relatives were recorded in the Permian.
Found in the same rock
117 taxa- Ombonia tirolensis6 sites
- Comelicothyris5 sites
- Orthothetina ladina5 sites
- Haydenella kiangsiensis4 sites
- Aviculopectinidae3 sites
- Comelicania merlai3 sites
- Comelicothyris laterosulcata3 sites
- Comelicothyris recticardinis3 sites
- Geinitzina3 sites
- Glomospira3 sites
- Haydenella minuta3 sites
- Hemigordius3 sites
- Leptodus nobilis3 sites
- Nodosaria3 sites
- Spinomarginifera pygmaea3 sites
- Transcaucasathyris minor3 sites
- Ufimia differentiata3 sites
- Agathammina2 sites
- Ammodiscus2 sites
- Baisalina2 sites
- Comelicania2 sites
- Crenispirifer dzhulfensis2 sites
- Cryptophyllum leptoconicum2 sites
- Cyclogyra2 sites
The Paleobiology Database records 23 sites for Janiceps, 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
9 references- The Athyridoids of the transitional beds between Bellerophon and Werfen Formations (uppermost Permian, southern Alps, Italy)15
- Survival patterns of macrobenthic marine assemblages during the end-Permian mass extinction in the western Tethys (Dolomites, Italy)4
- The Development and Change of Marine Organisms at the Palaeozoic-Mesozoic Boundary4
- Sistema Brakhiopod Otryada Atiridida3
- Environmental and biotic changes across the Permian-Triassic boundary in western Tethys: The Bulla parastratotype, Italy2
- Kotlyar et al., 19832
- Upper Permian brachiopods from the Nesen Formation, north Iran1
- Upper Permian and Permian-Triassic boundary in north Iran1
- Fossili Permiani dei dintori di Recoaro1
Each of the 33 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 Janiceps 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 Janiceps, 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 itJanicepsinae through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Frech 1901