Melampus olivaceus

Carpenter, 1857 · CC0 · 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
- salt marsh shellPBDB
- Sits inside
- MelampusPBDB
- Diet
- grazerPBDB, for Ellobiidae
- Life habit
- epifaunalPBDB, for Ellobiidae
- Motility
- actively mobilePBDB, for Ellobiidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 2.4 million years on record.
The record covers at least 2.58 Mya to 129 ka. No occurrence read is dated outside 3.6 Mya to 11.7 ka.
23 occurrences of Melampus olivaceus on record, most of them in the Pleistocene. 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
23 occurrences- Pliocene9%
- Pleistocene91%
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
4 formations
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The named rock units Melampus olivaceus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.
Melampus olivaceus and its relatives
PleistoceneWhere Melampus olivaceus and its relatives were recorded in the Pleistocene.
Found in the same rock
921 taxa- Cryptomya californica19 sites
- Lucinisca nuttalli19 sites
- Donax (Donax) gouldii18 sites
- Glossaulax reclusiana18 sites
- Leptopecten latiauratus17 sites
- Anomia peruviana16 sites
- Callianax biplicata16 sites
- Cerithideopsis californica16 sites
- Crucibulum spinosum16 sites
- Dentalium neohexagonum16 sites
- Phrontis tegula16 sites
- Argopecten ventricosus15 sites
- Caesia perpinguis15 sites
- Californiconus californicus15 sites
- Donax (Paradonax) californicus15 sites
- Laevicardium substriatum15 sites
- Saccella taphria15 sites
- Tivela (Pachydesma) stultorum15 sites
- Acteocina culcitella14 sites
- Macoma nasuta14 sites
- Nucula (Lamellinucula) exigua14 sites
- Caryocorbula luteola13 sites
- Dendraster excentricus13 sites
- Rexithaerus secta13 sites
The Paleobiology Database records 21 sites for Melampus olivaceus, 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
9 references- The Paleontology and Stratigraphy of the Marine Pliocene and Pleistocene of San Pedro, California6
- Paleoecologic analysis and age of a late Pleistocene fossil assemblage from Upper Newport Bay, Newport Beach, Orange County, California4
- The paleontology of the Pleistocene molluscan fauna of the Newport Bay area, California4
- Geology of southeastern Ventura basin, Los Angeles County, California2
- Late Pleistocene invertebrates of the Newport Bay area, California2
- Geology and Paleontology of Palos Verdes Hills, California2
- Pleistocene mollusks from Tecolote Creek, San Diego, California1
- The paleontology and stratigraphy of the Pleistocene at Signal hill, Long Beach, California1
- An Upper Pleistocene fauna from the Baldwin Hills, Los Angeles County, California1
Each of the 23 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 content1

Picture of Melampus olivaceus
- Source
- Wikidata/Commons
- Credit
- Carpenter, 1857
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Melampus olivaceus was found in Sketchfab.
Smithsonian Open Access and MorphoSource were 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 itMelampus through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Carpenter 1857