Trigonirhynchia

via iDigBio · CC0 · via iDigBio. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- TrigonirhynchiinaePBDB
- Diet
- suspension feederPBDB, for Trigonirhynchiidae
- Life habit
- epifaunalPBDB, for Trigonirhynchiidae
- Motility
- stationary, attachedPBDB, for Trigonirhynchiidae
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 199 million years on record.
The record covers at least 426.7 Mya to 227.3 Mya. No occurrence read is dated outside 432.9 Mya to 201.4 Mya.
43 occurrences of Trigonirhynchia on record, most of them in the Devonian. 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
43 occurrences- Silurian24%
- Devonian43%
- Middle Triassic23%
- Late Triassic9%
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
20 formations
- McColley Canyon Formation6
- Dorgicse Formation5
- Canon de Caballeros Formation4
- Felsõörs Formation3
- Haragan Formation · Hunton Group3
- Nevezis Formation2
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The named rock units Trigonirhynchia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.
Trigonirhynchia and its relatives
DevonianWhere Trigonirhynchia and its relatives were recorded in the Devonian.
Found in the same rock
474 taxa- Leptaena9 sites
- Howellella7 sites
- Mentzelia mentzeli7 sites
- Bivalvia6 sites
- Eospirifer6 sites
- Microsphaeridiorhynchus nucula6 sites
- Trigonirhynchella6 sites
- Atrypa nevadana5 sites
- Atrypa reticularis5 sites
- Chonetes5 sites
- Coenothyris vulgaris5 sites
- Dalejina5 sites
- Gypidula5 sites
- Hysterolites5 sites
- Meristina5 sites
- Nucleospira5 sites
- Rugosa5 sites
- Sphaerirhynchia5 sites
- Volirhynchia vivida5 sites
- Angustothyris angustaeformis4 sites
- Atrypa4 sites
- Atrypa oklahomensis4 sites
- Brachyspirifer pinyonoides4 sites
- Camarotoechia haraganensis4 sites
The Paleobiology Database records 41 sites for Trigonirhynchia, 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
24 references- The Anisian/Ladinian boundary in the Vászoly section (Balaton Highland, Hungary)5
- Great Basin Lower Devonian Brachiopoda5
- European province Late Silurian brachiopods from the Ciudad Victoria area, Tamaulipas, northeastern Mexico4
- Stratigraphy and paleontology of the Hunton Group in the Arbuckle Mountain Region. Part II - Haragan articulate brachiopods4
- Calef and Hancock's Ludlow communities in Wales and the Welsh Borderland2
- Lower and Middle Devonian marine deposits of the Soviet arctic and the correlation with arctic Canada2
- Early Devonian benthic communities of the Alexander Terrane, southeastern Alaska2
- Fauna und Alter der Erbslochgrauwacke (Brachiopoden und Trilobiten, Unter-Devon, Rheinisches Schiefergebirge und Harz2
- Dagys, 19632
- The Pelsonian brachiopod fauna of the Balaton Highland1
- Brachiopod communities of the Lithuanian Silurian1
- The Lower Devonian chonetoidean brachiopods from the Argentine Precordillera1
Each of the 43 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. 12 further references are not listed. 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 content1

Picture of Trigonirhynchia
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Trigonirhynchia 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 itTrigonirhynchiinae through timeFormations of the DevonianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cooper 1942