Cyrena marylandica
No picture of Cyrena marylandica 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 Cyrena marylandica, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- CyrenaPBDB
- Diet
- suspension feederPBDB, for Venerida
- Life habit
- infaunalPBDB, for Venerida
- Motility
- facultatively mobilePBDB, for Venerida
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At most 6.4 million years on record.
The one occurrence read is dated to somewhere between 119.57 Mya and 113.2 Mya, which is a dating window rather than a span.
1 occurrence of Cyrena marylandica on record, most of them in the Early Cretaceous. 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
1 occurrences- Early Cretaceous100%
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
1 formation
- Arundel Clay Formation · Potomac Group1
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The named rock units Cyrena marylandica has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Cyrena marylandica and its relatives
Early CretaceousWhere Cyrena marylandica and its relatives were recorded in the Early Cretaceous.
Found in the same rock
3 taxa- Bythinia arundelensis1 site
- Viviparus arlingtonensis1 site
- Viviparus marylandicus1 site
The Paleobiology Database records 1 site for Cyrena marylandica, and this reads all of them. The number is how many of those sites it was catalogued from too.
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
1 referenceEach of the 1 occurrence 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Cyrena marylandica 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 Cyrena marylandica, or no answer at all. This entry cannot say which.
No 3D scan of Cyrena marylandica 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 itCyrena through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Clark 1911