Calorhadia semen

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
- CalorhadiaPBDB
- Diet
- deposit feederPBDB, for Calorhadia
- Life habit
- infaunalPBDB, for Calorhadia
- Motility
- facultatively mobilePBDB, for Calorhadia
- Vision
- blindPBDB, for Bivalvia
- Environment
- coastal,inner shelf,outer shelf,oceanicPBDB, for Nuculanidae
Time the record covers
At most 11 million years on record.
Every occurrence read is dated to somewhere between 48.07 Mya and 37.71 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
20 occurrences of Calorhadia semen on record, most of them in the Eocene. 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
20 occurrences- Eocene100%
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
6 formations
- Lisbon Formation · Claiborne Group5
- McBean Formation · Claiborne Group5
- Nanjemoy Formation4
- Cook Mountain Formation · Claiborne Group3
- Gosport Sand Formation · Claiborne Group2
- Piney Point Formation · Pamunkey Group1
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The named rock units Calorhadia semen has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Calorhadia semen and its relatives
EoceneWhere Calorhadia semen and its relatives were recorded in the Eocene.
Found in the same rock
212 taxa- Cubitostrea sellaeformis11 sites
- Barbatia (Plagiarca) rhomboidella10 sites
- Bivalvia9 sites
- Callista (Callista) perovata9 sites
- Calyptraea (Trochita) aperta9 sites
- Cavilinga pomilia9 sites
- Gastropoda9 sites
- Anthozoa8 sites
- Cadulus8 sites
- Caryocorbula deusseni8 sites
- Pachecoa decisa8 sites
- Calorhadia bella7 sites
- Pachecoa7 sites
- Spisula parilis7 sites
- Turritella nasuta7 sites
- Venericardia (Venericor) densata7 sites
- Calorhadia opulenta6 sites
- Corbula extenuata6 sites
- Eburneopecten scintillatus6 sites
- Glycymeris idonea6 sites
- Naticidae6 sites
- Nucula (Nucula) ovula6 sites
- Saccella catasarca6 sites
- Ancilla staminea5 sites
The Paleobiology Database records 14 sites for Calorhadia semen, 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
6 references- Ecological control of evolutionary rates in Paleocene - Eocene marine molluscs9
- Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Pteropoda, Scaphopoda and Cephalopoda6
- Geology of the Coastal Plain of South Carolina2
- Resilience of marine invertebrate communities during the early Cenozoic hyperthermals1
- Marine Macro-Invertebrate Paleoenvirionmental Interpretation of the Harvey Site (Cook Mountain, Eocene) in North-Central Louisiana1
- Molluscan biostratigraphy of the Miocene Middle Atlantic Coastal Plain of North America1
Each of the 20 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 Calorhadia semen
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Calorhadia semen 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 itCalorhadia through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Lea 1883)