Halloporidae

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
- HalloporinaPBDB
- 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 44 million years on record.
The record covers at least 471.3 Mya to 426.7 Mya. No occurrence read is dated outside 486.85 Mya to 419.62 Mya.
710 occurrences of Halloporidae 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
710 occurrences- Ordovician93%
- Silurian7%
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
166 formations
- Corryville Formation25
- Bellevue Formation21
- Mount Auburn Formation17
- Hermitage Formation17
- Waynesville Formation16
- Miamitown Formation15
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The named rock units Halloporidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 142 further formations hold fewer occurrences each and are not listed. 143 occurrences have no formation on record, which is common for older literature.
Halloporidae and its relatives
OrdovicianWhere Halloporidae and its relatives were recorded in the Ordovician.
Found in the same rock
1,811 taxa- Hallopora147 sites
- Platystrophia60 sites
- Ambonychia57 sites
- Rafinesquina56 sites
- Prasopora52 sites
- Batostoma50 sites
- Homotrypa50 sites
- Eridotrypa48 sites
- Heterotrypa45 sites
- Zygospira44 sites
- Lophospira39 sites
- Crinoidea37 sites
- Flexicalymene37 sites
- Liospira37 sites
- Hormotoma36 sites
- Rafinesquina alternata36 sites
- Amplexopora35 sites
- Constellaria35 sites
- Anazyga recurvirostra34 sites
- Escharopora33 sites
- Isotelus33 sites
- Modiolopsis32 sites
- Conularia31 sites
- Ctenodonta30 sites
The Paleobiology Database records 481 sites for Halloporidae, 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
135 references- Gradient ecology of a biotic invasion: biofacies of the type Cincinnatian Series (Upper Ordovician), Cincinnati, Ohio region, USA85
- The early Paleozoic Bryozoa of the Baltic Provinces81
- Zonation of the Middle and Upper Ordovician strata in northwestern Georgia61
- Comparative geographic and environmental diversity dynamics of gastropods and bivalves during the Ordovician Radiation (M.S. thesis, University of Cincinnati)39
- Ecological associations in a regressive sequence: the latest Ordovician of the Oslo-Asker district, Norway30
- Pre-Chattanooga stratigraphy in Central Tennessee20
- Bryozoa from Rocklandian (Middle Ordovician) rocks of the Upper Mississippi Valley region18
- Palaeozoic geology of the Lake Simcoe Area, Ontario18
- The fossil fauna of the Ordovician in the Cincinnati Region17
- Systematic paleontology, biostratigraphy, and paleoecology of Middle Ordovician Bryozoa (Trepostomata) from the Hermitage Formation of east-central Tennessee15
- Lithostratigraphy and depositional environments of the Lexington Limestone (Ordovician) of central Kentucky15
- Upper Ordovician bryozoa from the Montagne de Noire, Southern France12
Each of the 710 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. 123 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 Halloporidae
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Halloporidae 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itHalloporina through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Bassler 1911