Rhynchotrema perlamellosum

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
- RhynchotremaPBDB
- Diet
- suspension feederPBDB, for Rhynchotrematidae
- Life habit
- epifaunalPBDB, for Rhynchotrematidae
- Motility
- stationary, attached, epibiontPBDB, for Rhynchotrematidae
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 6.5 million years on record.
Every occurrence read is dated to somewhere between 449.6 Mya and 443.1 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
9 occurrences of Rhynchotrema perlamellosum on record, most of them in the Ordovician. 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
9 occurrences- Ordovician100%
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
6 formations
- Kagawong Formation3
- Big Hill Formation2
- Mannie Formation1
- Richmond Formation1
- Georgian Bay Formation1
- Waynesville Formation1
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The named rock units Rhynchotrema perlamellosum has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Rhynchotrema perlamellosum and its relatives
OrdovicianWhere Rhynchotrema perlamellosum and its relatives were recorded in the Ordovician.
Found in the same rock
64 taxa- Pterinea demissa3 sites
- Strophomena planumbona3 sites
- Aulacera2 sites
- Calapoecia huronensis2 sites
- Catenipora gracilis2 sites
- Columnaria alveolata2 sites
- Helicelasma rusticum2 sites
- Hiscobeccus capax2 sites
- Lophospira milleri2 sites
- Lyopora goldfussi2 sites
- Rafinesquina alternata2 sites
- Strophomena sulcata2 sites
- Strophomena vetusta2 sites
- Actinoceras1 site
- Anaphragma mirabile1 site
- Anazyga recurvirostra1 site
- Anolotichia ponderosa1 site
- Beatricea undulata1 site
- Bythopora1 site
- Catazyga headi1 site
- Constellaria polystomella1 site
- Corynotrypa1 site
- Crepipora1 site
- Cyclonema bilix1 site
The Paleobiology Database records 9 sites for Rhynchotrema perlamellosum, 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
3 references- Upper Ordovician faunas of Ontario and Quebec5
- The Richmond Formation of Michigan3
- Pre-Chattanooga stratigraphy in Central Tennessee1
Each of the 9 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 content1

Picture of Rhynchotrema perlamellosum
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
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 itRhynchotrema through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Whitfield 1882