Scaphander (Mirascapha) costatus

University of Washington Burke Museum · CC0 · 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
- Scaphander (Mirascapha)PBDB
- Diet
- carnivorePBDB, for Cylichnidae
- Life habit
- epifaunalPBDB, for Cylichnidae
- Motility
- actively mobilePBDB, for Cylichnidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 55 million years on record.
The record covers at least 89.8 Mya to 33.9 Mya. No occurrence read is dated outside 93.9 Mya to 27.3 Mya.
74 occurrences of Scaphander (Mirascapha) costatus 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
74 occurrences- Late Cretaceous11%
- Paleocene22%
- Eocene66%
- Oligocene1%
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
24 formations
- Martinez Formation11
- Meganos Formation8
- Roseburg Formation · Umpqua Group6
- Santiago Formation5
- Matilija Formation5
- Scripps Formation · La Jolla Group4
Loading coastlines…
The named rock units Scaphander (Mirascapha) costatus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.
Scaphander (Mirascapha) costatus and its relatives
EoceneWhere Scaphander (Mirascapha) costatus and its relatives were recorded in the Eocene.
Found in the same rock
767 taxa- Nemocardium (Nemocardium) linteum25 sites
- Ficopsis remondii19 sites
- Polinices (Euspira) nuciformis19 sites
- Brachidontes (Brachidontes) cowlitzensis18 sites
- Nuculana (Saccella) gabbii16 sites
- Polinices hornii16 sites
- Calyptraea diegoana15 sites
- Dentalium cooperi14 sites
- Acila (Truncacila) decisa13 sites
- Cucullaea mathewsonii13 sites
- Crassatella uvasana12 sites
- Gari (Gobraeus) hornii12 sites
- Cylichnina tantilla11 sites
- Eocernina hannibali11 sites
- Tejonia moragai11 sites
- Caryocorbula parilis10 sites
- Dentalium stramineum10 sites
- Pachycrommium clarki10 sites
- Rimella supraplicata10 sites
- Turritella infragranulata pachecoensis10 sites
- Turritella merriami10 sites
- Pitar uvasana9 sites
- Conus remondii8 sites
- Glycymeris (Glycymerita) sagittata8 sites
The Paleobiology Database records 68 sites for Scaphander (Mirascapha) costatus, 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
26 references- The geology and paleontology of the type section of the Meganos Formation (lower Middle Eocene) of California8
- Stratigraphy and Mollusca of the Eocene of western Oregon7
- Fauna of the Martinez Eocene of California7
- Geology of the Northern Santa Ana Mountains, California6
- Eocene molluscan paleontology of the Whitaker Peak area, Los Angeles and Ventura counties, California5
- Geology of the coast ranges immediately north of the San Francisco Bay region, California5
- Stratigraphy and fauna of the Tejon Eocene of California5
- Upper Cretaceous formations and faunas of southern California4
- Fauna of the Type Tejon: Its relation to the Cowlitz Phase of the Tejon Group of Washington4
- Eocene molluscan stages and their correlation, San Diego area, California3
- Megapaleontology of the Eocene Llajas Formation, Simi Valley, California2
- Upper Cretaceous of the Pacific Coast2
Each of the 74 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. 14 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 Scaphander (Mirascapha) costatus
- Source
- GBIF
- Credit
- University of Washington Burke Museum
- Licence
- CC0
- 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 itScaphander (Mirascapha) through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Gabb 1864)