Phragmolites compressus

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
- PhragmolitesPBDB
- Diet
- detritivorePBDB, for Bucaniidae
- Life habit
- epifaunalPBDB, for Bucaniidae
- Motility
- actively mobilePBDB, for Bucaniidae
- Vision
- limitedPBDB, for Gastropoda
- Environment
- marinePBDB, for Bellerophontida
Time the record covers
At least 2.8 million years on record.
The record covers at least 453.8 Mya to 451 Mya. No occurrence read is dated outside 457.3 Mya to 449.6 Mya.
20 occurrences of Phragmolites compressus 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
20 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
12 formations
- Dunleith Formation · Galena Group5
- Bobcaygeon Formation · Simcoe Group4
- Chaumont Formation2
- Decorah Shale Formation1
- Cummingsville Formation1
- Prosser Limestone Formation1
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The named rock units Phragmolites compressus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Phragmolites compressus and its relatives
OrdovicianWhere Phragmolites compressus and its relatives were recorded in the Ordovician.
Found in the same rock
312 taxa- Hormotoma gracilis15 sites
- Eroicaspira bellicincta14 sites
- Liospira vitruvia14 sites
- Sinuites cancellatus14 sites
- Lophospira perangulata13 sites
- Omospira trentonensis13 sites
- Trochonema umbilicata13 sites
- Cyrtostropha salteri12 sites
- Tetranota bidorsata12 sites
- Tetranota sexcarinata12 sites
- Cyrtodonta11 sites
- Cyrtodontula11 sites
- Eunema centralis11 sites
- Liospira progne11 sites
- Subulites11 sites
- Cyclonema textilis10 sites
- Cymatonota10 sites
- Eunema concinnula10 sites
- Fusispira subfusiformis10 sites
- Holopea pyrene10 sites
- Liospira americana10 sites
- Lyrodesma10 sites
- Modiolodon10 sites
- Modiolopsis10 sites
The Paleobiology Database records 20 sites for Phragmolites compressus, 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
6 references- Stratigraphic ranges of Middle and Late Ordovician Gastropoda and Monoplacophora of Minnesota10
- Gastropoda and Conularida of the Ottawa Formation of the Ottawa - St. Lawrence Lowland5
- Palaeozoic geology of the Lake Simcoe Area, Ontario2
- Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023)1
- Oldest Carnivorous Gastropod Borings, Found in Trentonian (Middle Ordovician) Brachiopods1
- The Lower Silurian Gastropoda of Minnesota1
Each of the 20 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 Phragmolites compressus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Phragmolites compressus 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 itPhragmolites through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Conrad 1838)