Glycymeris (Glycymeris) rosecanyonensis

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
- Glycymeris (Glycymeris)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 21 million years on record.
Every occurrence read is dated to somewhere between 61.66 Mya and 41.03 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
30 occurrences of Glycymeris (Glycymeris) rosecanyonensis on record, most of them in the Eocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
30 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
7 formations
- Llajas Formation8
- Ardath Formation · La Jolla Group8
- Scripps Formation · La Jolla Group7
- Juncal Formation2
- Matilija Formation2
- Domengine Formation1
Loading coastlines…
The named rock units Glycymeris (Glycymeris) rosecanyonensis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Glycymeris (Glycymeris) rosecanyonensis and its relatives
EoceneWhere Glycymeris (Glycymeris) rosecanyonensis and its relatives were recorded in the Eocene.
Found in the same rock
183 taxa- Turritella uvasana applinae14 sites
- Tejonia moragai13 sites
- Ficopsis remondii12 sites
- Rimella supraplicata10 sites
- Bittium cliffensis9 sites
- Glyptoactis (Claibornicardia) domenginica9 sites
- Caryocorbula parilis8 sites
- Crassatella uvasana8 sites
- Fasciolaria bilineata7 sites
- Ectinochilus (Macilentos) macilentus6 sites
- Pleurofusia fresnoensis6 sites
- Pseudoperissolax blakei6 sites
- Terebrifusus howei6 sites
- Cylichnina tantilla5 sites
- Fusus (Hemifusus) cooperii5 sites
- Macoma viticola5 sites
- Macrocallista tecolotensis5 sites
- Neverita (Neverita) globosa5 sites
- Pachycrommium clarki5 sites
- Paraseraphs erraticus5 sites
- Phalium (Semicassis) tuberculiformis5 sites
- Turritella buwaldana5 sites
- Ancilla (Spirancilla) gabbi4 sites
- Antigona kelloggi4 sites
The Paleobiology Database records 29 sites for Glycymeris (Glycymeris) rosecanyonensis, 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
8 references- Eocene molluscan stages and their correlation, San Diego area, California14
- Megapaleontology of the Eocene Llajas Formation, Simi Valley, California8
- Eocene molluscan paleontology of the Whitaker Peak area, Los Angeles and Ventura counties, California3
- Stratigraphy and Mollusks of Lower Paleogene of the Kamchatka Peninsula and Climatic Features1
- Eocene megapaleontology, stratigraphy, and depositional environments, Elsmere Canyon, Los Angeles County, California1
- A Middle Eocene marine molluscan assemblage form the usually nonmarine Friars Formation, San Diego County, California1
- Molluscan faunas of the Domengine and Arroyo Hondo Formations of the California Eocene1
- An Eocene invertebrate fauna from the La Jolla Quadrangle, California1
Each of the 30 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 content2

Picture of Glycymeris (Glycymeris) rosecanyonensis
- Source
- GBIF
- Credit
- via GBIF
- Licence
- CC BY 4.0
- 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
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itGlycymeris (Glycymeris) through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hanna 1927)