Triadomerus bulbosus

George Poinar Jr. & John T. Huber · CC BY 3.0 · via Wikidata/Commons. 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
- TriadomerusPBDB
- Motility
- actively mobilePBDB, for Arthropoda
- Environment
- terrestrialPBDB, for Insecta
Time the record covers
At most 12 million years on record.
Every occurrence read is dated to somewhere between 83.6 Mya and 72.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Triadomerus bulbosus on record, most of them in the Late Cretaceous. 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
3 occurrences- Late Cretaceous100%
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
1 formation
- Foremost Formation · Belly River Group2
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The named rock units Triadomerus bulbosus 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.
Triadomerus bulbosus and its relatives
Late CretaceousWhere Triadomerus bulbosus and its relatives were recorded in the Late Cretaceous.
Found in the same rock
70 taxa- Archaeromma minutissimum3 sites
- Peronehelea chrimikalydia3 sites
- Archaeromma nearcticum2 sites
- Atriculicoides globosus2 sites
- Baeomorpha ovatata2 sites
- Cretomiastor ferejunctus2 sites
- Culicoides canadensis2 sites
- Culicoides filipalpis2 sites
- Culicoides tyrrelli2 sites
- Leptoconops (Leptoconops) primaevus2 sites
- Minyohelea pumilis2 sites
- Palaeobrachypogon vetus2 sites
- Serphites paradoxus2 sites
- Alloambria caudata1 site
- Alloambria infelicis1 site
- Ambaraphis costalis1 site
- Ambaraphis kotejai1 site
- Aniferella bostoni1 site
- Apalocnemis canadambris1 site
- Archaeromma1 site
- Archaeromma masneri1 site
- Archichrysotus manitobus1 site
- Atriculicoides1 site
- Baeomorpha dubitata1 site
The Paleobiology Database records 3 sites for Triadomerus bulbosus, 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 3 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 content1

Picture of Triadomerus bulbosus
- Source
- Wikidata/Commons
- Credit
- George Poinar Jr. & John T. Huber
- Licence
- CC BY 3.0
- Commercial use
- the licence allows it
No 3D scan of Triadomerus bulbosus 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 itTriadomerus through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Yoshimoto 1975