Yaadia
via iDigBio · CC BY-NC-SA · 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
- YaadiinaePBDB
- Diet
- suspension feederPBDB, for Trigoniida
- Life habit
- infaunalPBDB, for Trigoniida
- Motility
- facultatively mobilePBDB, for Trigoniida
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 53 million years on record.
The record covers at least 125.77 Mya to 72.2 Mya. No occurrence read is dated outside 132.6 Mya to 66 Mya.
65 occurrences of Yaadia 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
65 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
20 formations
- Chico Formation8
- Panoche Formation · Great Valley Group8
- Budden Canyon Formation6
- Redding Formation4
- Atherfield Clay Formation · Lower Greensand Group3
- Sandgate Formation · Lower Greensand Group3
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The named rock units Yaadia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 occurrences have no formation on record, which is common for older literature.
Yaadia and its relatives
Late CretaceousWhere Yaadia and its relatives were recorded in the Late Cretaceous.
Found in the same rock
478 taxa- Glycymerita veatchii10 sites
- Pterotrigonia evansana8 sites
- Gervillella sublanceolata7 sites
- Turritella6 sites
- Venilicardia6 sites
- Acila (Truncacila)5 sites
- Acila (Truncacila) demessa5 sites
- Biplica obliqua5 sites
- Calva (Egelicalva) taffi5 sites
- Crassatella5 sites
- Eurotrigonia mantelli5 sites
- Perissitys brevirostris5 sites
- Resatrix5 sites
- Cymbophora gabbiana4 sites
- Cymbophora popenoei4 sites
- Panopea4 sites
- Pterotrigonia4 sites
- Tellinidae4 sites
- Anchura3 sites
- Anomia3 sites
- Biplica isoplicata3 sites
- Buchotrigonia abrupta3 sites
- Califadesma elafium3 sites
- Calva3 sites
The Paleobiology Database records 65 sites for Yaadia, 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
13 references- The North Pacific Cretaceous trigoniid genus Yaadia31
- Map and checklists of Jurassic and Cretaceous macrofossil localities within the San Jose 1:100,000 Quadrangle, California, and discussion of paleontological results7
- The stratigraphical palaeontology of the Lower Greensand7
- Upper Cretaceous of the Pacific Coast4
- Cretaceous system in northern Peru4
- Unpublished data on Cretaceous-Paleocene molluscan assemblages3
- Geology of the Petersfield district, Hampshire2
- An unusual Late Cretaceous fauna from an oyster-rich interval in the Santa Cruz Mountains of California2
- New Late Cretaceous epitoniid and zygopleurid gastropods from the Pacific Slope of North America1
- The buccinid gastropod Deussenia from Upper Cretaceous strata of California1
- The sedimentology and biostratigraphy of a temporary exposure of Blackdown Greensand (Lower Cretaceous, upper Albian) at Blackborough, Devon1
- Described or figured West Coast species of Cymbophora1
Each of the 65 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. 1 further reference is 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 Yaadia
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC BY-NC-SA
- Commercial use
- the licence does not allow it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution-NonCommercial
- Commercial use
- the licence does not allow it
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itYaadiinae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Crickmay 1930