Xenophora (Endoptygma) leprosa

Xenophora leprosa (Morton, 1834), a relative of Xenophora (Endoptygma) leprosa — not Xenophora (Endoptygma) leprosa itself

Not Xenophora (Endoptygma) leprosa. This is Xenophora leprosa (Morton, 1834), a relative — both are Trochidae.

via GBIF · 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
EndoptygmaPBDB
Diet
grazerPBDB, for Xenophoridae
Life habit
epifaunalPBDB, for Xenophoridae
Motility
actively mobilePBDB, for Xenophoridae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At most 18 million years on record.

Every occurrence read is dated to somewhere between 83.6 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Cretaceous — about 60 of 60 occurrencesLate CretaceousPaleocene — about 0 of 60 occurrences84–83 Mya — about 0.1 occurrences83–83 Mya — about 0.7 occurrences83–82 Mya — about 0.7 occurrences82–82 Mya — about 0.7 occurrences82–81 Mya — about 0.7 occurrences81–80 Mya — about 0.7 occurrences80–80 Mya — about 0.7 occurrences80–79 Mya — about 0.7 occurrences79–79 Mya — about 0.7 occurrences79–78 Mya — about 0.7 occurrences78–77 Mya — about 0.7 occurrences77–77 Mya — about 0.7 occurrences77–76 Mya — about 0.7 occurrences76–75 Mya — about 0.7 occurrences75–75 Mya — about 0.7 occurrences75–74 Mya — about 0.7 occurrences74–74 Mya — about 0.7 occurrences74–73 Mya — about 0.7 occurrences73–72 Mya — about 0.7 occurrences72–72 Mya — about 4 occurrences72–71 Mya — about 5 occurrences71–70 Mya — about 5 occurrences70–70 Mya — about 5 occurrences70–69 Mya — about 5 occurrences69–69 Mya — about 5 occurrences69–68 Mya — about 5 occurrences68–67 Mya — about 5 occurrences67–67 Mya — about 5 occurrences67–66 Mya — about 5 occurrences66–66 Mya — about 0.9 occurrences84.1 Mya65.5 Mya

60 occurrences of Xenophora (Endoptygma) leprosa on record, most of them in the Late Cretaceous. 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

60 occurrences

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

11 formations

Prairie Bluff — 34.25°N, 88.97°WPrairie Bluff — 33.89°N, 88.96°WPrairie Bluff — 33.79°N, 88.97°WPrairie Bluff — 33.79°N, 88.91°WPrairie Bluff — 33.73°N, 88.91°WPrairie Bluff — 33.61°N, 88.90°WPrairie Bluff — 33.52°N, 88.84°WPrairie Bluff — 33.38°N, 88.74°WPrairie Bluff — 33.07°N, 88.61°WPrairie Bluff — 33.05°N, 88.56°WPrairie Bluff — 32.90°N, 88.46°WPrairie Bluff — 32.61°N, 88.24°WPrairie Bluff — 32.43°N, 88.04°WPrairie Bluff — 32.39°N, 87.92°WPrairie Bluff — 32.23°N, 87.50°WPrairie Bluff — 32.14°N, 87.42°WPrairie Bluff — 32.07°N, 87.33°WPrairie Bluff — 32.04°N, 87.26°WPrairie Bluff — 32.08°N, 87.03°WPrairie Bluff — 32.05°N, 86.81°WPrairie Bluff — 32.05°N, 86.81°WPrairie Bluff — 31.97°N, 86.72°WPrairie Bluff — 32.00°N, 86.48°WPrairie Bluff — 31.98°N, 86.00°WPrairie Bluff — 31.98°N, 85.92°WMount Laurel Sand — 39.55°N, 75.65°WCoffee Sand — 34.26°N, 88.70°WCoffee Sand — 32.62°N, 89.53°WCoffee Sand — 34.45°N, 88.58°WCorsicana Marl — 32.85°N, 96.21°WCorsicana Marl — 29.44°N, 98.56°WCorsicana Marl — 29.35°N, 98.88°WRipley — 35.23°N, 88.61°WRipley — 34.49°N, 89.01°WRipley — 35.32°N, 88.42°WProvidence — 31.86°N, 85.95°WProvidence — 31.87°N, 85.72°WMarshalltown — 39.78°N, 75.44°WSandy Hook — 40.40°N, 74.12°WMount Laurel — 40.26°N, 74.27°WMerchantville — 39.95°N, 74.99°WSevern — 38.91°N, 76.85°W

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The named rock units Xenophora (Endoptygma) leprosa has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Xenophora (Endoptygma) leprosa and its relatives

Late Cretaceous

Where Xenophora (Endoptygma) leprosa and its relatives were recorded in the Late Cretaceous.

Found in the same rock

850 taxa

The Paleobiology Database records 60 sites for Xenophora (Endoptygma) leprosa, 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

14 references

Each of the 60 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. 2 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 Xenophora leprosa (Morton, 1834)

Source
GBIF
Credit
via GBIF
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 itEndoptygma through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Morton 1834)