Paucicrura

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
- DalmanellinaePBDB
- Diet
- suspension feederPBDB, for Dalmanellidae
- Life habit
- epifaunalPBDB, for Dalmanellidae
- Motility
- stationary, attachedPBDB, for Dalmanellidae
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 17 million years on record.
The record covers at least 458.2 Mya to 440.5 Mya. No occurrence read is dated outside 486.85 Mya to 432.9 Mya.
253 occurrences of Paucicrura 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
253 occurrences- Ordovician98%
- Silurian2%
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
73 formations
- Denley Limestone Formation · Lower Trenton Group63
- Edinburg Formation11
- Verulam Formation · Simcoe Group11
- Advance Formation11
- Dunleith Formation · Galena Group8
- Scales Shale Formation · Maquoketa Group8
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The named rock units Paucicrura has been recovered from, largest first. Drawn where the rock is now, not where it formed. 49 further formations hold fewer occurrences each and are not listed. 18 occurrences have no formation on record, which is common for older literature.
Paucicrura and its relatives
OrdovicianWhere Paucicrura and its relatives were recorded in the Ordovician.
Found in the same rock
1,238 taxa- Isotelus gigas64 sites
- Prasopora59 sites
- Platystrophia58 sites
- Flexicalymene (Flexicalymene) senaria57 sites
- Stictopora54 sites
- Anazyga recurvirostra49 sites
- Eridotrypa mutabilis49 sites
- Sowerbyella41 sites
- Rafinesquina deltoidea39 sites
- Sowerbyella kayi38 sites
- Rafinesquina37 sites
- Merocrinus35 sites
- Strophomena35 sites
- Cupulocrinus34 sites
- Ceraurus pleurexanthemus32 sites
- Sowerbyella (Sowerbyella) sericea30 sites
- Rafinesquina trentonensis28 sites
- Sowerbyella curdsvillensis28 sites
- Dinorthis meedsi25 sites
- Glyptorthis bellarugosa25 sites
- Hesperorthis tricenaria25 sites
- Amplexopora24 sites
- Rhynchotrema24 sites
- Homocystites23 sites
The Paleobiology Database records 248 sites for Paucicrura, 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
57 references- R. Titus unpublished collections55
- Palaeozoic geology of the Lake Simcoe Area, Ontario18
- Ordovician brachiopods Enteletacea of the east baltic area17
- Biostratigraphy of the Middle and Late Ordovician cephalopods of the Upper Mississippi Valley area14
- The Barr and lower Ardmillan series (Caradoc) of the Girvan District, south-west Ayrshire, with descriptions of the Brachiopoda12
- Upper Middle Ordovician (Caradoc) brachiopods from the Advance Formation, northern Rocky Mountains, British Columbia11
- Gradient analysis of Middle Ordovician brachiopod biofacies: Biostratigraphic, biogeographic, and Macroevolutionary Implications9
- Brachiopods and trilobites of the Sardeson Beds in the Twin Cities9
- Fossil Communities of the Middle Trenton Group (Ordovician) of New York State8
- Fossil communities of the lower Trenton Group (Middle Ordovician) of central and northwestern New York State7
- Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada7
- The geology of the Baltic Republics6
Each of the 253 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. 45 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 Paucicrura
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Paucicrura 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 itDalmanellinae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cooper 1956