Glycymeris
Hectonichus · CC BY-SA 3.0 · via Wikidata/Commons. 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- Also called
- bittersweet clamPBDB
- Sits inside
- GlycymeridinaePBDB
- Diet
- suspension feederPBDB
- Life habit
- infaunalPBDB
- Motility
- facultatively mobilePBDB
- Vision
- blindPBDB, for Bivalvia
- Environment
- coastal,inner shelf,outer shelf,oceanicPBDB, for Glycymerididae
Time the record covers
At least 121 million years on record.
The record covers at least 121.4 Mya to 11.7 ka. No occurrence read is dated outside 143.1 Mya to 0 Mya.
1,824 occurrences of Glycymeris on record, most of them in the Miocene. The Paleobiology Database records this as a living group. 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
1,824 occurrences- Early Cretaceous2%
- Late Cretaceous16%
- Paleocene5%
- Eocene20%
- Oligocene14%
- Miocene20%
- Pliocene11%
- Pleistocene12%
- Holoceneunder 1%
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
412 formations
- Gosport Sand Formation · Claiborne Group59
- Moodys Branch Formation · Jackson Group43
- Providence Formation35
- Falun de Jeurs Formation33
- Hinoshima Formation · Himenoura Group29
- Ladd Formation24
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The named rock units Glycymeris has been recovered from, largest first. Drawn where the rock is now, not where it formed. 388 further formations hold fewer occurrences each and are not listed. 340 occurrences have no formation on record, which is common for older literature.
Glycymeris and its relatives
MioceneWhere Glycymeris and its relatives were recorded in the Miocene.
Found in the same rock
2,514 taxa- Turritella68 sites
- Granocardium60 sites
- Anomia argentaria54 sites
- Cyprimeria54 sites
- Veniella conradi53 sites
- Nuculana50 sites
- Crassatella vadosa49 sites
- Syncyclonema48 sites
- Cymbophora45 sites
- Exogyra (Exogyra) costata44 sites
- Linearis44 sites
- Crenella serica42 sites
- Dentalium42 sites
- Serpula42 sites
- Corbula41 sites
- Euspira rectilabrum38 sites
- Pseudolimea reticulata38 sites
- Pterotrigonia (Scabrotrigonia)38 sites
- Camptonectes bubonis37 sites
- Cubitostrea tecticosta37 sites
- Bryozoa36 sites
- Turritella trilira36 sites
- Ostrea34 sites
- Cadulus33 sites
The Paleobiology Database records 1,154 sites for Glycymeris, and this reads 240 of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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
501 references- Biostratigraphie et paleoecologie des gisements types du Stampian de la region d''Etampes (Essonne)87
- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions45
- Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain41
- Effects of sampling on paleoecologic and taphonomic analyses in high-diversity fossil accumulations: an example from the Eocene Gosport Sand, Alabama38
- Upper Cretaceous (Maestrichtian) larger invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with further data for the East Gulf36
- Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Pteropoda, Scaphopoda and Cephalopoda35
- Stratigraphic Distribution of Paleocene and Eocene Fossils in the Eastern Gulf Coast Region34
- Lower Oligocene Bivalvia of the Vicksburg Group in Mississippi32
- Resilience of marine invertebrate communities during the early Cenozoic hyperthermals31
- Mid-Cretaceous (Albian to Turonian) biostratigraphy of northern California22
- The Shiobara-type Molluscan Fauna: An ecological analysis of fossil molluscs21
- Sedimentary facies and fossil molluscs of the Oligocene Ashiya Group in the Hikoshima Takenokojim and Nishiyama area, Shimonoseki City, Southwest Japan20
Each of the 1,824 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. 489 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 content3
Picture of Glycymeris
- Source
- Wikidata/Commons
- Credit
- Hectonichus
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Glycymeris glycymeris · USNM:IZ:USNM 199801
3D model
- Source
- Sketchfab
- Licence
- CC0 Public Domain
- Commercial use
- the licence allows it
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itGlycymeridinae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Da Costa 1778