Gasconadia

via GBIF · CC0 · 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
- SinuopeidaePBDB
- Life habit
- epifaunalPBDB, for Gastropoda
- Motility
- actively mobilePBDB, for Gastropoda
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 450 thousand years on record.
The record covers at least 486.85 Mya to 486.4 Mya. No occurrence read is dated outside 490.2 Mya to 457.3 Mya.
21 occurrences of Gasconadia 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
21 occurrences- Cambrian5%
- Ordovician95%
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
9 formations
- Chepultepec Formation5
- Tanyard Formation3
- Tribes Hill Formation · Beekmantown Group3
- Oneota Dolomite Formation3
- Gasconade Dolomite Formation2
- Gasconade Formation2
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The named rock units Gasconadia has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Gasconadia and its relatives
OrdovicianWhere Gasconadia and its relatives were recorded in the Ordovician.
Found in the same rock
108 taxa- Macluritella uniangulata7 sites
- Finkelnburgia5 sites
- Ceratopea grandis4 sites
- Dakeoceras4 sites
- Ectenoceras4 sites
- Sinuopea4 sites
- Tetralobula4 sites
- Clarkoceras3 sites
- Conocerina3 sites
- Euconia conicus3 sites
- Hystricurus3 sites
- Levisoceras3 sites
- Ophileta supraplana3 sites
- Ozarkina3 sites
- Ribeiria3 sites
- Clarkoceras newtonwinchelli2 sites
- Conocerina obliqua2 sites
- Ellesmeroceras2 sites
- Eremoceras teres2 sites
- Hemithecella expansa2 sites
- Macluritella2 sites
- Ophileta2 sites
- Ophileta complanata2 sites
- Ozarkina typica2 sites
The Paleobiology Database records 19 sites for Gasconadia, 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
11 references- Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023)7
- Geology of the Bristol and Wallace quadrangles, Virginia2
- Faunal correlations of the Ellenburger limestone of Texas2
- Systematic Paleontology2
- The Calciferous of the Mohawk Valley, with descriptions of new species2
- Competitive algal colonization or peritidal flats in a schizohaline environment: the lower Ordovician of New York1
- Early Ordovician Sea in Central Texas1
- Beekmantown Group (Lower Ordovician) of Maryland1
- The oldest known tentaculitid: from the Chepultepec Limestone (Canadian) of Virginia1
- Ozarkian and Canadian cephalopods. Part II, Brevicones1
- Geology of the Appalachian Valley in Virginia. Part I – Geological text and illustrations1
Each of the 21 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. 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 Gasconadia
- Source
- GBIF
- Credit
- via GBIF
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Gasconadia 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 itSinuopeidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Weller and St. Clair 1928