Palaeostomata
Palaeostomata is a superorder of extinct stenolaemate bryozoans, including all extinct orders within Stenolaemata and excluding the order Cyclostomata, which is the only extant stenolaemate order. Palaeostomates are sometimes called "stony bryozoans" because they are heavily calcified, making them ideal candidates for fossilization. They are distinct from cyclostomes because they lack calcified exterior walls above the basal lamina and because their zooecial tubes are transected by calcitic partitions, such as diaphragms.
No picture of Palaeostomata was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Palaeostomata, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- StenolaemataPBDB
- Diet
- suspension feederPBDB, for Stenolaemata
- Life habit
- epifaunalPBDB, for Bryozoa
- Motility
- stationary, attachedPBDB, for Stenolaemata
- Vision
- blindPBDB, for Stenolaemata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 449 million years on record.
The record covers at least 515.3 Mya to 66 Mya. No occurrence read is dated outside 520 Mya to 61.66 Mya.
6,860 occurrences of Palaeostomata 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
6,860 occurrences- Cambrianunder 1%
- Ordovician29%
- Silurian5%
- Devonian10%
- Carboniferous13%
- Permian41%
- Early Triassicunder 1%
- Middle Triassicunder 1%
- Late Triassic2%
- Late Jurassicunder 1%
- Late Cretaceousunder 1%
- Paleoceneunder 1%
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
762 formations
- Lexington Limestone Formation212
- Wreford Formation · Council Grove Group183
- Kazan Formation140
- Bangor Limestone Formation128
- Edwardsville Formation111
- Kapp Starostin Formation108
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The named rock units Palaeostomata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 738 further formations hold fewer occurrences each and are not listed. 904 occurrences have no formation on record, which is common for older literature.
Palaeostomata and its relatives
PermianWhere Palaeostomata and its relatives were recorded in the Permian.
Found in the same rock
2,322 taxa- Fenestella74 sites
- Crinoidea57 sites
- Hallopora52 sites
- Bryozoa50 sites
- Fistulipora49 sites
- Spirifer43 sites
- Platyceras42 sites
- Fenestrata40 sites
- Rafinesquina40 sites
- Cystodictya37 sites
- Platycrinites37 sites
- Platystrophia37 sites
- Prasopora37 sites
- Schuchertella35 sites
- Ctenodonta34 sites
- Zygospira33 sites
- Cleiothyridina32 sites
- Flexicalymene32 sites
- Punctospirifer32 sites
- Amplexopora31 sites
- Ostracoda31 sites
- Corynotrypa30 sites
- Barycrinus29 sites
- Cornulites29 sites
The Paleobiology Database records at least 834 sites for Palaeostomata, and this reads 240 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
710 references- Ecological restructuring after extinction: the Late Ordovician (Mohawkian) of the eastern United States274
- Mshanki Pozdnei Permi226
- Morozova and Kruchinina, 1986167
- The Paleontology and Paleoecology of the Lower Bangor Limestone (Chesterian, Mississippian)in northwestern Alabama128
- Pre-Chattanooga stratigraphy in Central Tennessee121
- Zonation of the Middle and Upper Ordovician strata in northwestern Georgia120
- The early Paleozoic Bryozoa of the Baltic Provinces109
- Silurian and Lower Devonian brachiopod and bryozoan communities of southwestern Byelorussia108
- The fossil fauna of the Ordovician in the Cincinnati Region106
- Kiseleva, 1982103
- Community Organization, Paleontology, and Sedimentology of the Lower Mississippian Borden Delta Platform (Edwardsville Formation, Southern Indiana)95
- Bryozoans from the Lower Permian Voringen Member (Kapp Starostin Formation), Spitsbergen, Svalbard94
Each of the 6,860 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. 698 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 content0
No picture of Palaeostomata was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Palaeostomata, or no answer at all. This entry cannot say which.
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itStenolaemata through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Ma et al. 2014