Choanodus irregularis
No picture of Choanodus irregularis 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 Choanodus irregularis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- ChoanodusPBDB
- Diet
- suspension feederPBDB, for Lyttoniidina
- Life habit
- low-level epifaunalPBDB, for Lyttoniidina
- Motility
- stationary, attachedPBDB, for Lyttoniidina
- Vision
- blindPBDB, for Strophomenata
- Environment
- marinePBDB, for Lyttoniidina
Time the record covers
At most 8.9 million years on record.
Every occurrence read is dated to somewhere between 283.3 Mya and 274.4 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
24 occurrences of Choanodus irregularis 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
24 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
4 formations
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The named rock units Choanodus irregularis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Choanodus irregularis and its relatives
PermianWhere Choanodus irregularis and its relatives were recorded in the Permian.
Found in the same rock
365 taxa- Acosarina mesoplatys20 sites
- Hercosia uddeni19 sites
- Meekella calathica19 sites
- Xenosteges adherens19 sites
- Derbyia laqueata18 sites
- Echinauris irregularis18 sites
- Permophricodothyris bullata18 sites
- Rhipidomella hispidula18 sites
- Composita17 sites
- Institella leonardensis17 sites
- Megousia auriculata16 sites
- Dyoros (Lissosia) vagabundus15 sites
- Rhamnaria tenuispinosa15 sites
- Hustedia spicata14 sites
- Metriolepis tegulata14 sites
- Neospirifer mansuetus14 sites
- Chonosteges variabilis13 sites
- Diplanus lamellatus13 sites
- Edriosteges multispinosus13 sites
- Peniculauris subcostata13 sites
- Rugatia paraindica13 sites
- Derbyia complicata12 sites
- Hustedia lusca12 sites
- Pontisia stehlii tumidosa12 sites
The Paleobiology Database records 24 sites for Choanodus irregularis, 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
1 referenceEach of the 24 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content0
No picture of Choanodus irregularis 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 Choanodus irregularis, or no answer at all. This entry cannot say which.
No 3D scan of Choanodus irregularis 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 itChoanodus through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cooper and Grant 1974