Unicardium
via iDigBio · CC BY · 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
- MactromyidaePBDB
- Diet
- chemosymbioticPBDB, for Lucinoidea
- Life habit
- infaunalPBDB, for Lucinoidea
- Motility
- facultatively mobilePBDB, for Lucinoidea
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 200 million years on record.
The record covers at least 248.6 Mya to 48.07 Mya. No occurrence read is dated outside 250.8 Mya to 33.9 Mya.
98 occurrences of Unicardium on record, most of them in the Late 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
98 occurrences- Early Triassic2%
- Middle Triassic10%
- Late Triassic1%
- Early Jurassic7%
- Middle Jurassic8%
- Late Jurassic23%
- Early Cretaceous2%
- Late Cretaceous44%
- Paleocene1%
- Eocene1%
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
31 formations
- Prairie Bluff Formation10
- Chari Formation8
- Kap Leslie Formation6
- Marshalltown Formation6
- Peedee Formation4
- Corsicana Marl Formation4
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The named rock units Unicardium has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 further formations hold fewer occurrences each and are not listed. 18 occurrences have no formation on record, which is common for older literature.
Unicardium and its relatives
Late CretaceousWhere Unicardium and its relatives were recorded in the Late Cretaceous.
Found in the same rock
1,372 taxa- Nuculana25 sites
- Veniella conradi24 sites
- Serpula23 sites
- Cubitostrea tecticosta21 sites
- Turritella21 sites
- Anomia argentaria20 sites
- Cardium19 sites
- Crenella serica19 sites
- Cyprimeria19 sites
- Linearis19 sites
- Crassatella vadosa18 sites
- Exogyra (Exogyra) costata18 sites
- Granocardium18 sites
- Bryozoa17 sites
- Neogastropoda17 sites
- Pterotrigonia (Scabrotrigonia)17 sites
- Pyropsis17 sites
- Anchura16 sites
- Bellifusus16 sites
- Glycymeris16 sites
- Arca15 sites
- Camptonectes bubonis15 sites
- Cliona15 sites
- Cymbophora15 sites
The Paleobiology Database records 81 sites for Unicardium, 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
35 references- Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain13
- Unpublished data from Kachchh8
- Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf7
- Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain7
- Stratigraphy of the outcropping post-Magothy Upper Cretaceous formations in Southern New Jersey an Northern Delmarva peninsula, Delaware and Maryland7
- Middle and Upper Jurassic bivalve associations from the Iberian Range (Spain). Las asociaciones de bivalvos del Jurasico Medio y Superior en la Cordillera Iberica (Espana)6
- Unpublished data5
- Palokologie und zeitliche Verbreitung benthischer Faunengemeinschaften im Unterjura von Chile5
- Faunal lists from Muschelkalk Museum, Ingelfingen, Germany4
- Das Festungsprofil auf Spitzbergen3
- Contributo allo studio della fauna Giurese della Dancalia centrale [The Jurassic fauna of the central Danakil]3
- Palaeoecology of corals and rudists in mixed volcaniclastic carbonate small-scale rhythms (Upper Cretaceous, Jamaica)2
Each of the 98 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. 23 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 Unicardium
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC BY
- Commercial use
- the licence allows it
No 3D scan of Unicardium 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
Everything alive alongside itMactromyidae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. d'Orbigny 1850