Glycymeris (Glycymerita) sagittata

Not Glycymeris (Glycymerita) sagittata. This is Glycymeris sagittata (Gabb, 1864), a relative — both are Glycymerididae.
via GBIF · CC BY 4.0 · via GBIF. 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
- GlycymeritaPBDB
- Diet
- suspension feederPBDB, for Glycymerididae
- Life habit
- semi-infaunalPBDB, for Glycymerididae
- Motility
- facultatively mobilePBDB, for Glycymerididae
- Vision
- blindPBDB, for Bivalvia
- Environment
- coastal,inner shelf,outer shelf,oceanicPBDB, for Glycymerididae
Time the record covers
At least 7 million years on record.
The record covers at least 48.07 Mya to 41.03 Mya. No occurrence read is dated outside 56 Mya to 33.9 Mya.
43 occurrences of Glycymeris (Glycymerita) sagittata on record, most of them in the Eocene. 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
43 occurrences- Eocene100%
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
16 formations
- Juncal Formation13
- Llajas Formation6
- Cowlitz Formation4
- Crescent Formation2
- Maniobra Formation2
- Roseburg Formation · Umpqua Group2
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The named rock units Glycymeris (Glycymerita) sagittata 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.
Glycymeris (Glycymerita) sagittata and its relatives
EoceneWhere Glycymeris (Glycymerita) sagittata and its relatives were recorded in the Eocene.
Found in the same rock
536 taxa- Ficopsis remondii20 sites
- Calyptraea diegoana18 sites
- Cylichnina tantilla18 sites
- Turritella buwaldana18 sites
- Eocernina hannibali16 sites
- Ectinochilus (Macilentos) macilentus15 sites
- Pachycrommium clarki15 sites
- Schedocardia brewerii13 sites
- Nemocardium (Nemocardium) linteum12 sites
- Polinices (Euspira) nuciformis12 sites
- Corbula (Caryocorbula) dickersoni11 sites
- Pitar (Lamelliconcha) joaquinensis11 sites
- Brachidontes (Brachidontes) cowlitzensis10 sites
- Acila (Truncacila) decisa9 sites
- Callista (Costacallista) hornii9 sites
- Crassatella uvasana9 sites
- Olivella mathewsonii9 sites
- Turritella andersoni9 sites
- Architectonica (Stellaxis) cognata8 sites
- Clavilithes tabulatus8 sites
- Scaphander (Mirascapha) costatus8 sites
- Sinum obliquum8 sites
- Turritella uvasana8 sites
- Acutostrea idriaensis7 sites
The Paleobiology Database records 42 sites for Glycymeris (Glycymerita) sagittata, 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
19 references- Eocene Macropaleontology of Northern Lockwood Valley, Ventura County, California7
- Eocene molluscan paleontology of the Whitaker Peak area, Los Angeles and Ventura counties, California7
- Megapaleontology of the Eocene Llajas Formation, Simi Valley, California6
- Stratigraphy and fauna of the Tejon Eocene of California3
- Paleoecological anlaysis of molluscan assemblages from the Middle Eocene Cowlitz Formation, southwestern Washington2
- Macropaleontology of the Eocene Crescent Formation in the Little River Area, Southern Olympic Peninsula, Washington2
- Molluscan Paleontology of the Lower Eocene Maniobra Formation, Orocopia Mountains, Southern California2
- Stratigraphy and Mollusca of the Eocene of western Oregon2
- Fauna from the Eocene of Washington2
- Geologic Map and Database of the Roseburg 30 x 60' Quadrangle, Douglas and Coos Counties, Oregon1
- Paleontology of the Eocene Bateque Formation, Baja California Sur, Mexico1
- A Middle Eocene marine molluscan assemblage form the usually nonmarine Friars Formation, San Diego County, California1
Each of the 43 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. 7 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 content1

Picture of Glycymeris sagittata (Gabb, 1864)
- Source
- GBIF
- Credit
- via GBIF
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itGlycymerita through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Gabb 1864)