Nipponitrigonia kikuchiana
No picture of Nipponitrigonia kikuchiana 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 Nipponitrigonia kikuchiana, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- NipponitrigoniaPBDB
- Diet
- suspension feederPBDB, for Trigoniidae
- Life habit
- shallow infaunalPBDB, for Trigoniidae
- Motility
- fast-movingPBDB, for Trigoniidae
- Vision
- blindPBDB, for Trigoniidae
- Environment
- marinePBDB, for Trigoniidae
Time the record covers
At least 25 million years on record.
The record covers at least 125.77 Mya to 100.5 Mya. No occurrence read is dated outside 143.1 Mya to 93.9 Mya.
24 occurrences of Nipponitrigonia kikuchiana on record, most of them in the Early 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
24 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
9 formations
- Tanohata Formation · Miyako Group6
- Hiraiga Formation · Miyako Group4
- Hoji Formation3
- Hinagu Formation2
- Yatsushiro Formation2
- Kikunotani Formation1
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The named rock units Nipponitrigonia kikuchiana has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Nipponitrigonia kikuchiana and its relatives
Early CretaceousWhere Nipponitrigonia kikuchiana and its relatives were recorded in the Early Cretaceous.
Found in the same rock
112 taxa- Pterotrigonia (Pterotrigonia)15 sites
- Anthonya6 sites
- Bakevellia (Neobakevellia)5 sites
- Eriphyla (Eriphyla)5 sites
- Glycymeris (Hanaia)5 sites
- Otostoma5 sites
- Praecaprotina5 sites
- Spondylus5 sites
- Trajanella5 sites
- Ceratostreon4 sites
- Gervillia (Gervillia)4 sites
- Lopha (Actinostreon)4 sites
- Nagaoella4 sites
- Ptychomya densicostata4 sites
- Teredo4 sites
- Acmaea3 sites
- Ataphrus3 sites
- Cosmetodon3 sites
- Glycymerita3 sites
- Grammatodon (Nanonavis)3 sites
- Plectomya3 sites
- Amphidonte (Amphidonte)2 sites
- Astarte2 sites
- Astarte (Leckhamptonia)2 sites
The Paleobiology Database records 24 sites for Nipponitrigonia kikuchiana, 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
4 references- A systematic survey of the Mesozoic Bivalvia from Japan16
- Kase, 19846
- Upper Albian bivalves from the Goshonoura Group1
- Lower Cretaceous bivalves from the Sakawa area, Shikoku1
Each of the 24 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 content0
No picture of Nipponitrigonia kikuchiana 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 Nipponitrigonia kikuchiana, or no answer at all. This entry cannot say which.
No 3D scan of Nipponitrigonia kikuchiana 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 itNipponitrigonia through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Yokoyama 1891)