Mathilda

Mathilda is a genus of sea snails, marine gastropod mollusks in the family Mathildidae.

Mathilda

Manuel CABALLER · CC BY 4.0 · 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
Sits inside
MathildidaePBDB
Diet
carnivorePBDB, for Mathildidae
Life habit
epifaunalPBDB, for Mathildidae
Motility
actively mobilePBDB, for Mathildidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 233 million years on record.

The record covers at least 233.6 Mya to 11.7 ka. No occurrence read is dated outside 237 Mya to 0 Mya.

Middle Triassic — about 0 of 210 occurrencesLate Triassic — about 1 of 210 occurrencesLate TriassicEarly Jurassic — about 0 of 210 occurrencesMiddle Jurassic — about 21 of 210 occurrencesLate Jurassic — about 0 of 210 occurrencesEarly Cretaceous — about 6 of 210 occurrencesEarly CretaceousLate Cretaceous — about 44 of 210 occurrencesLate CretaceousPaleocene — about 33 of 210 occurrencesEocene — about 66 of 210 occurrencesEoceneOligocene — about 7 of 210 occurrencesMiocene — about 17 of 210 occurrencesPliocene — about 10 of 210 occurrencesPleistocene — about 4 of 210 occurrences242–234 Mya — about 1.0 occurrences234–226 Mya — about 0.0 occurrences177–169 Mya — about 3 occurrences169–161 Mya — about 18 occurrences145–137 Mya — about 0.0 occurrences137–129 Mya — about 2 occurrences129–121 Mya — about 0.4 occurrences121–113 Mya — about 2 occurrences113–105 Mya — about 1 occurrence105–97 Mya — about 0.7 occurrences89–81 Mya — about 2 occurrences81–73 Mya — about 6 occurrences73–64 Mya — about 42 occurrences64–56 Mya — about 26 occurrences56–48 Mya — about 26 occurrences48–40 Mya — about 19 occurrences40–32 Mya — about 24 occurrences32–24 Mya — about 5 occurrences24–16 Mya — about 7 occurrences16–8.1 Mya — about 9 occurrences8.1–0 Mya — about 17 occurrences233.6 Mya11.7 ka242 Mya0 Mya

210 occurrences of Mathilda on record, most of them in the Eocene. 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

210 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

65 formations

Reklaw — 30.88°N, 95.38°WReklaw — 30.11°N, 97.32°WReklaw — 30.01°N, 97.26°WReklaw — 30.80°N, 96.72°WReklaw — 30.00°N, 97.25°WRipley — 34.73°N, 88.95°WRipley — 35.23°N, 88.61°WRipley — 34.49°N, 89.01°WRipley — 35.32°N, 88.42°WRipley — 35.29°N, 88.60°WCook Mountain — 32.10°N, 88.86°WCook Mountain — 30.02°N, 97.07°WCook Mountain — 31.12°N, 95.90°WCook Mountain — 30.63°N, 96.55°WCook Mountain — 31.20°N, 95.73°WCook Mountain — 30.63°N, 96.54°WLellinge Greensand — 55.71°N, 12.60°ESevern — 38.80°N, 77.00°WSevern — 38.89°N, 76.85°WSevern — 38.92°N, 76.85°WSelsey — 50.73°N, 0.78°WBrightseat — 38.97°N, 76.85°WProvidence — 31.73°N, 85.12°WProvidence — 31.82°N, 84.97°WProvidence — 31.89°N, 85.21°WCoffee Sand — 34.26°N, 88.70°WCoffee Sand — 34.45°N, 88.58°WBowden — 17.88°N, 76.28°WMoodys Branch — 32.95°N, 90.17°WMoodys Branch — 32.33°N, 90.15°WHatchetigbee Bluff — 31.93°N, 88.05°WHatchetigbee Bluff — 31.93°N, 87.75°WWeches — 31.21°N, 96.02°WWeches — 31.11°N, 96.28°WWeches — 30.18°N, 97.47°WWeches — 31.59°N, 94.84°WPrairie Bluff — 32.67°N, 88.26°WPrairie Bluff — 31.97°N, 86.00°WRed Bluff — 31.81°N, 88.69°WRed Bluff — 31.66°N, 88.66°WGosport Sand — 31.54°N, 87.52°WGosport Sand — 31.55°N, 87.91°WKincaid — 30.13°N, 97.47°WKincaid — 31.29°N, 96.72°WDanian Limestone — 55.25°N, 12.13°ETermofourà — 45.05°N, 7.80°EPakaurangi — 36.22°S, 174.28°ECorsicana Marl — 29.95°N, 97.71°WCorsicana Marl — 29.79°N, 97.80°WMount Laurel Sand — 39.55°N, 75.65°WStone City — 30.53°N, 96.69°WCalcaire de Mons — 50.45°N, 3.93°E

Loading coastlines…

The named rock units Mathilda has been recovered from, largest first. Drawn where the rock is now, not where it formed. 41 further formations hold fewer occurrences each and are not listed. 34 occurrences have no formation on record, which is common for older literature.

Mathilda and its relatives

Eocene

Where Mathilda and its relatives were recorded in the Eocene.

Found in the same rock

2,193 taxa

The Paleobiology Database records 134 sites for Mathilda, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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

71 references

Each of the 210 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. 59 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 content2

Picture of Mathilda

Credit
Manuel CABALLER
Licence
CC BY 4.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Credit
Veterock
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itMathildidae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Semper 1865)