Harfordia robusta
Harfordia robusta is a species of sea snail, a marine gastropod mollusk in the family Fasciolariidae, the spindle snails, the tulip snails and their allies.

Steve Lonhart (SIMoN / MBNMS) · Public Domain · 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- Sits inside
- HarfordiaPBDB
- Diet
- carnivorePBDB, for Neogastropoda
- Life habit
- epifaunalPBDB, for Neogastropoda
- Motility
- actively mobilePBDB, for Neogastropoda
- 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 0 Mya.
26 occurrences of Harfordia robusta 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
26 occurrences- Pliocene4%
- Pleistocene96%
- Holoceneunder 1%
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
7 formations
- Palos Verdes Sand Formation6
- Lomita Marl Formation4
- Unnamed Formation3
- Santa Barbara Formation2
- Quaternary terrace Formation2
- Fernando Formation1
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The named rock units Harfordia robusta 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.
Harfordia robusta and its relatives
PleistoceneWhere Harfordia robusta and its relatives were recorded in the Pleistocene.
Found in the same rock
892 taxa- Callianax biplicata18 sites
- Thylacodes squamigerus18 sites
- Epilucina californica17 sites
- Californiconus californicus16 sites
- Chlorostoma funebrale16 sites
- Homalopoma (Homalopoma) luridum16 sites
- Crepidula adunca14 sites
- Glans carpenteri14 sites
- Leukoma staminea14 sites
- Diodora aspera13 sites
- Fissurella volcano12 sites
- Hima cooperi12 sites
- Littorina (Littorina) scutulata12 sites
- Lottia insessa12 sites
- Pomaulax gibberosa12 sites
- Acmaea mitra11 sites
- Atrimitra idae11 sites
- Glycymeris septentrionalis11 sites
- Hipponix tumens11 sites
- Mitrella tuberosa11 sites
- Norrisia norrisii11 sites
- Nutricola tantilla11 sites
- Paciocinebrina interfossa11 sites
- Petricola (Petricola) carditoides11 sites
The Paleobiology Database records 21 sites for Harfordia robusta, 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
16 references- Paleontology of the Pleistocene of Point Loma, San Diego County, California5
- Geology of San Nicolas Island, California3
- Geology and Paleontology of Palos Verdes Hills, California3
- The Paleontology and Stratigraphy of the Marine Pliocene and Pleistocene of San Pedro, California3
- Paleoecologic molluscan geography of the Californian Pleistocene1
- Late Pleistocene faunas from the northwestern coast of Baja California, Mexico1
- Geologic Application of Biometrical Analysis of Molluscan Assemblages1
- Distributional List of the West American Marine Molluscs from San Diego, California to the Polar Sea1
- An Upper Pleistocene fauna from the Baldwin Hills, Los Angeles County, California1
- Geology and Paleontology of a Portion of Los Angeles, California1
- Catalogue of the Marine Pliocene and Pleistocene Mollusca of California1
- The Anomalous Stratigraphy of Deadman's Island, California1
Each of the 26 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. 4 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 Harfordia robusta
- Source
- Wikipedia/Commons
- Credit
- Steve Lonhart (SIMoN / MBNMS)
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Harfordia robusta 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 itHarfordia through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Trask 1855)