Matsudagonia dubia
No picture of Matsudagonia dubia was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Matsudagonia dubia, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- MatsudagoniaPBDB
- Diet
- suspension feederPBDB, for Trigoniida
- Life habit
- infaunalPBDB, for Trigoniida
- Motility
- facultatively mobilePBDB, for Trigoniida
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At most 6.2 million years on record.
Every occurrence read is dated to somewhere between 72.2 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Matsudagonia dubia 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
4 occurrences- Late 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
- Himenoura U-IV Formation · Himenoura Group2
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The named rock units Matsudagonia dubia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Matsudagonia dubia and its relatives
Late CretaceousWhere Matsudagonia dubia and its relatives were recorded in the Late Cretaceous.
Found in the same rock
53 taxa- Amakusatapes ovatus3 sites
- Leptosolen3 sites
- Acila (Truncacila)2 sites
- Clisocolus2 sites
- Cnestriella2 sites
- Eriphyla2 sites
- Inoceramus (Endocostea)2 sites
- Izumia2 sites
- Limopsis2 sites
- Loxo2 sites
- Myrtea2 sites
- Nanonavis2 sites
- Tenea2 sites
- Yaadia2 sites
- Agnomyax1 site
- Anomia1 site
- Aphrodina1 site
- Apiotrigonia1 site
- Bicorbula1 site
- Brachidontes1 site
- Caestocorbula1 site
- Cataceramus balticus1 site
- Clisocolus (Clisocolus)1 site
- Crassatella1 site
The Paleobiology Database records 3 sites for Matsudagonia dubia, 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
2 references- Unpublished data on Cretaceous-Paleocene molluscan assemblages2
- Bivalve fossils from the Uppermost Formation of the Upper Himenoura Subgroup in Amakusa Shimojima island, Kyushu, Part 12
Each of the 4 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Matsudagonia dubia was found. Wikidata and iDigBio were searched and had none.
Wikipedia and 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 Matsudagonia dubia, or no answer at all. This entry cannot say which.
No 3D scan of Matsudagonia dubia 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
What may have been alongside itMatsudagonia through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Tashiro 1979)