Girvanella problematica
No picture of Girvanella problematica was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Girvanella problematica, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- GirvanellaPBDB
- Diet
- "photoautotroph"PBDB, for Girvanella
- Life habit
- epifaunalPBDB, for Girvanella
- Motility
- stationary, attached, epibiontPBDB, for Girvanella
- Environment
- hypersaline,marine,brackish,freshwaterPBDB, for Cyanobacteria
Time the record covers
At least 394 million years on record.
The record covers at least 516 Mya to 121.4 Mya. No occurrence read is dated outside 521 Mya to 119.57 Mya.
32 occurrences of Girvanella problematica on record, most of them in the Devonian. 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
32 occurrences- Cambrian13%
- Ordovician25%
- Silurian16%
- Devonian44%
- Early Cretaceous3%
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
21 formations
- Ihmert Formation3
- Heceta Formation3
- Cashions Creek Formation2
- Stinchar Formation2
- Oi-Muran Reef Massif Formation2
- Sokol Subsuite Formation1
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The named rock units Girvanella problematica has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.
Girvanella problematica and its relatives
DevonianWhere Girvanella problematica and its relatives were recorded in the Devonian.
Found in the same rock
239 taxa- Rothpletzella9 sites
- Solenoporaceae6 sites
- Alveolites4 sites
- Issinella4 sites
- Izhella4 sites
- Ostracoda4 sites
- Renalcis4 sites
- Syringopora4 sites
- Thamnopora4 sites
- Vermiporella myna4 sites
- <Spongiostromata>3 sites
- Allonema silurica3 sites
- Archaeolynthus3 sites
- Athyris3 sites
- Aulopora3 sites
- Cambrocyathellus3 sites
- Crinoidea3 sites
- Epiphyton3 sites
- Fenestellidae3 sites
- Gastropoda3 sites
- Givetianella tsienii3 sites
- Nochoroicyathus3 sites
- Platyaxum3 sites
- Proaulopora3 sites
The Paleobiology Database records 24 sites for Girvanella problematica, 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
17 references- Mid-Late Devonian calcified marine algae and cyanobacteria, south China8
- Paleoecology of upper Eifelian and lower Givetian coral limestones in the northwestern Sauerland (Devonian; Rhenish Massif)4
- Silurian microbial associations from the Alexander Terrane, Alaska3
- Diversity and systematics of Middle-Late Ordovician calcified cyanobacteria and associated microfossils from Ordos Basin, North China2
- Varlamov et al., 20082
- Maclurites and Girvanella in the Gordon River Limestone (Ordovician) of Tasmania2
- Sequence Stratigraphy and Rudist Facies Development of the Upper Barremian-Lower Cenomanian Platform, Northern Sinai, Egypt1
- Bryozoans, corals, and microfacies of Lower Eifelian (Middle Devonian) limestones at Kierspe, Germany1
- Animal and plant communities of Podolia1
- The ecology of Lower Cambrian buildups from Zuune Arts, Mongolia: implications for early metazoan reef evolution1
- Fossils from the Lower Cambrian of the MacKenzie Mountains (Canada)1
- Depositional environment, paleoecology and diagenetic history of the "Marbre rouge à crinoîdes de Baelen" (late Upper Devonian, Verviers Synclinorium, Eastern Belgium)1
Each of the 32 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. 5 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 Girvanella problematica was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Girvanella problematica, or no answer at all. This entry cannot say which.
No 3D scan of Girvanella problematica 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 itGirvanella through timeFormations of the DevonianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Nicholson and Etheridge 1878