Megasurcula carpenteriana
Megasurcula carpenteriana, also known as Carpenter's turrid, is a species of medium-sized predatory sea snail, a marine gastropod mollusc in the family Pseudomelatomidae, a family previously lumped with others collectively known as turrids. This species occurs in the Eastern Pacific Ocean. The species was named in honor of Philip Pearsall Carpenter.

Ed Bierman · CC BY 2.0 · via Wikipedia/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
- Carpenter's turridPBDB
- Sits inside
- MegasurculaPBDB
- Diet
- carnivorePBDB, for Conoidea
- Life habit
- epifaunalPBDB, for Conoidea
- Motility
- actively mobilePBDB, for Conoidea
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 5.2 million years on record.
The record covers at least 5.333 Mya to 129 ka. No occurrence read is dated outside 11.63 Mya to 11.7 ka.
64 occurrences of Megasurcula carpenteriana on record, most of them in the Pleistocene. 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
64 occurrences- Miocene2%
- Pliocene43%
- Pleistocene55%
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
12 formations
- Careaga Sandstone Formation11
- Pico Formation11
- Palos Verdes Sand Formation9
- Towsley Formation5
- Jacalitos Formation5
- Fernando Formation4
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The named rock units Megasurcula carpenteriana has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 occurrences have no formation on record, which is common for older literature.
Megasurcula carpenteriana and its relatives
PleistoceneWhere Megasurcula carpenteriana and its relatives were recorded in the Pleistocene.
Found in the same rock
1,154 taxa- Glossaulax reclusiana39 sites
- Turritella cooperi35 sites
- Saccella taphria30 sites
- Californiconus californicus26 sites
- Mitrella gausapata25 sites
- Panopea generosa25 sites
- Tresus nuttallii25 sites
- Pododesmus (Monia) macrochisma23 sites
- Callianax biplicata22 sites
- Dentalium neohexagonum21 sites
- Euclia tritonidea21 sites
- Caesia perpinguis20 sites
- Dallocardia quadragenarium20 sites
- Dosinia ponderosa19 sites
- Lucinisca nuttalli19 sites
- Thylacodes squamigerus19 sites
- Callianax pedroana18 sites
- Mitrella tuberosa18 sites
- Acanthinucella spirata17 sites
- Acteocina culcitella17 sites
- Caesia fossatus17 sites
- Crepidula nummaria17 sites
- Crepidula onyx17 sites
- Lucinoma annulata17 sites
The Paleobiology Database records 53 sites for Megasurcula carpenteriana, 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- Geology and paleontology of the Santa Maria District California11
- Geology of southeastern Ventura basin, Los Angeles County, California10
- The Etchegoin Pliocene of middle California6
- The Paleontology and Stratigraphy of the Marine Pliocene and Pleistocene of San Pedro, California5
- On the reconciliation of biostratigraphy and strontium isotope stratigraphy of three southern Californian Plio-Pleistocene formations3
- Early Pliocene marine climate and environment of the eastern Ventura Basin, Southern California3
- Late Pleistocene megafauna of Cayucos, California, and its zoogeographic significance3
- Late Pleistocene invertebrates of the Newport Bay area, California2
- Geology and Paleontology of a Portion of Los Angeles, California2
- Geology of the eastern part of the Santa Monica Mountains, Los Angeles County, California2
- Catalogue of Californian fossils2
- Age and paleoenvironmental significance of mega-invertebrates from the "San Pedro" Formation in the Coyote Hills, Fullerton and Buena Park, Orange County, Southern California1
Each of the 64 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 Megasurcula carpenteriana
- Source
- Wikipedia/Commons
- Credit
- Ed Bierman
- Licence
- CC BY 2.0
- Commercial use
- the licence allows it
No 3D scan of Megasurcula carpenteriana 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.
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMegasurcula through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Gabb 1866)