Glycymeris (Hanaia) hokkaidoensis
No picture of Glycymeris (Hanaia) hokkaidoensis was found. Wikipedia, Wikidata and iDigBio were searched and had none. 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 Glycymeris (Hanaia) hokkaidoensis, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- Glycymeris (Hanaia)PBDB
- Diet
- suspension feederPBDB, for Glycymeris
- Life habit
- infaunalPBDB, for Glycymeris
- Motility
- facultatively mobilePBDB, for Glycymeris
- Vision
- blindPBDB, for Bivalvia
- Environment
- coastal,inner shelf,outer shelf,oceanicPBDB, for Glycymerididae
Time the record covers
At most 11 million years on record.
Every occurrence read is dated to somewhere between 100.5 Mya and 89.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Glycymeris (Hanaia) hokkaidoensis 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
3 formations
- Mikasa Sandstone Formation · Middle Yezo Group2
- Saku Formation1
- Nagase Formation1
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The named rock units Glycymeris (Hanaia) hokkaidoensis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Glycymeris (Hanaia) hokkaidoensis and its relatives
Late CretaceousWhere Glycymeris (Hanaia) hokkaidoensis and its relatives were recorded in the Late Cretaceous.
Found in the same rock
11 taxa- Acila (Truncacila) hokkaidoensis2 sites
- Aphrodina2 sites
- Apiotrigonia (Apiotrigonia)2 sites
- Meekia2 sites
- Pterotrigonia (Acanthotrigonia)2 sites
- Steinmanella2 sites
- Gnesioceramus cripsii1 site
- Inoceramus (Inoceramus)1 site
- Inoceramus ginterensis1 site
- Inoceramus teshioensis1 site
- Inoceramus yabei1 site
The Paleobiology Database records 4 sites for Glycymeris (Hanaia) hokkaidoensis, and this reads all of them. The number is how many of those sites it was catalogued from too.
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- A systematic survey of the Mesozoic Bivalvia from Japan3
- Part V. Bivalve fossils from the Upper Cretaceous of the Monobe area, Shikoku1
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 Glycymeris (Hanaia) hokkaidoensis was found. Wikipedia, Wikidata and iDigBio were searched and had none.
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 Glycymeris (Hanaia) hokkaidoensis, or no answer at all. This entry cannot say which.
No 3D scan of Glycymeris (Hanaia) hokkaidoensis 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 itGlycymeris (Hanaia) through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Yabe and Nagao 1928)