Cryptostomida
Cryptostomida is an order of fossil bryozoans that lived from the Ordovician to the Permian.

Not Cryptostomida. This is Heminematopora gaetula Ernst, Jiménez-Sánchez & Baidder, 2015, a relative.
via GBIF · CC BY 4.0 · via GBIF. 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
- PalaeostomataPBDB
- 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 188 million years on record.
The record covers at least 443.1 Mya to 254.14 Mya. No occurrence read is dated outside 458.2 Mya to 251.902 Mya.
286 occurrences of Cryptostomida 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
286 occurrences- Ordovicianunder 1%
- Carboniferous1%
- Permian98%
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
66 formations
- Wreford Formation · Council Grove Group50
- Chandalaz Formation24
- Kazan Formation12
- Kapp Starostin Formation12
- Bell Canyon Formation10
- Lyudyanza Formation8
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The named rock units Cryptostomida has been recovered from, largest first. Drawn where the rock is now, not where it formed. 42 further formations hold fewer occurrences each and are not listed. 33 occurrences have no formation on record, which is common for older literature.
Cryptostomida and its relatives
PermianWhere Cryptostomida and its relatives were recorded in the Permian.
Found in the same rock
1,134 taxa- Acanthocladia guadalupensis61 sites
- Rhombopora lepidodendroides51 sites
- Syringoclemis wrefordensis51 sites
- Septopora spinulosa40 sites
- Rectifenestella tenax32 sites
- Tabulipora carbonaria27 sites
- Spinofenestella spinulosa26 sites
- Minilya binodata25 sites
- Condranema magna24 sites
- Polypora23 sites
- Penniretepora curvula21 sites
- Timanodictya nikiforovae21 sites
- Fistulipora20 sites
- Timanodictya20 sites
- Fenestella16 sites
- Polypora elliptica15 sites
- Fistulipora incrustans14 sites
- Penniretepora13 sites
- Timanodictya dichotoma13 sites
- Fistulipora grandis guadalupensis11 sites
- Girtypora ocellata11 sites
- Penniretepora flexistriata11 sites
- Rhombopora11 sites
- Septopora orientalis11 sites
The Paleobiology Database records 232 sites for Cryptostomida, 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
59 references- Stratigraphic and Geographic Bryozoan Abundance Gradients in the Calcareous Shales of the Wreford Megacyclothem (Lower Permian, Kansas)50
- Kiseleva, 198228
- The Guadalupian fauna25
- Novyye Permskiye mshanki Kabarovskogo kraya15
- Morozova and Kruchinina, 198614
- Species involved in Permian bryozoan bioherms, west Texas13
- Bryozoans from the Lower Permian Voringen Member (Kapp Starostin Formation), Spitsbergen, Svalbard12
- Mshanki Pozdnei Permi10
- Main trends in the evolution of the suborder Timanodictyina9
- Bryozoa8
- New bryozoans of the Family Girtyporidae from the Upper Permian of the southern Maritime Territory8
- Upper Permian bryozoans from the Akiyoshi Limestone Group6
Each of the 286 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. 47 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 Heminematopora gaetula Ernst, Jiménez-Sánchez & Baidder, 2015
- Source
- GBIF
- Credit
- via GBIF
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Cryptostomida was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
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 itPalaeostomata through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Vine 1884