Protocardia (Protocardia)

Preslicka, James · 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
- ProtocardiaPBDB
- Diet
- suspension feederPBDB, for Cardiidae
- Life habit
- infaunalPBDB, for Cardiidae
- Motility
- facultatively mobilePBDB, for Cardiidae
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 107 million years on record.
The record covers at least 192.9 Mya to 85.7 Mya. No occurrence read is dated outside 199.5 Mya to 83.6 Mya.
88 occurrences of Protocardia (Protocardia) on record, most of them in the Middle Jurassic. 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
88 occurrencesThese 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
23 formations
- Chari Formation13
- Kaladongar Formation10
- Goradongar Formation8
- Khadir Formation7
- Habo beds Formation6
- Washtawa Formation3
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The named rock units Protocardia (Protocardia) has been recovered from, largest first. Drawn where the rock is now, not where it formed. 17 occurrences have no formation on record, which is common for older literature.
Protocardia (Protocardia) and its relatives
Middle JurassicWhere Protocardia (Protocardia) and its relatives were recorded in the Middle Jurassic.
Found in the same rock
552 taxa- Grammatodon (Grammatodon)15 sites
- Camptonectes (Camptonectes) auritus10 sites
- Astarte9 sites
- Cosmetodon9 sites
- Astarte (Astarte)8 sites
- Entolium8 sites
- Modiolus8 sites
- Nuculana (Praesaccella)8 sites
- Pholadomya lirata8 sites
- Plagiostoma8 sites
- Pleuromya uniformis8 sites
- Varicorbula globosa8 sites
- Inoperna7 sites
- Entolium (Entolium) corneolum6 sites
- Eonavicula6 sites
- Grammatodon (Indogrammatodon)6 sites
- Isocyprina6 sites
- Pholadomya (Bucardiomya)6 sites
- Actinostreon gregarea5 sites
- Actinostreon marshi5 sites
- Aequipecten5 sites
- Chlamys5 sites
- Ctenoides5 sites
- Eopecten5 sites
The Paleobiology Database records 44 sites for Protocardia (Protocardia), 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
18 references- Unpublished data from Kachchh44
- A systematic survey of the Mesozoic Bivalvia from Japan15
- Habo Beds near Ler (Kutch): Pt. 3 - Biostratigraphy of the beds on the east of Ler6
- The upper Shemshak Formation (Toarcian–Aalenian) of the Eastern Alborz (Iran): Biota and palaeoenvironments during a transgressive–regressive cycle3
- Jurassic bivalves of Gebel Maghara, North Sinai, Egypt2
- Palökologie benthischer Faunen aus dem Unter-Toarc SW-Europas2
- Taxonomy and palaeoecology of the benthic macroinvertebrate fauna from the Middle Jurassic of northwestern Jordan2
- Lower Cretaceous bivalves from the Sakawa area, Shikoku2
- Salinity-controlled benthic associations from the Upper Jurassic of Portugal2
- Mollusques fossiles du Crétace de la Côte occidentale d'Afrique du Cameroun à l'Angola. II. - Lamellibranches2
- First record of a Middle Jurassic macrofauna from the Brnjica (NE Serbia): stratigraphy, palaeoecology and correlation with adjacent regions1
- Middle Cretaceous (Cenomanian) bivalves from the Karai Formation, Uttattur Group, of the Cauvery Basin, south India1
Each of the 88 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. 6 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 content2

Picture of Protocardia (Protocardia)
- Source
- GBIF
- Credit
- Preslicka, James
- Licence
- CC0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Credit
- Shellie Luallin
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itProtocardia through timeFormations of the Middle JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Beyrich 1845