Mathilda (Echinimathilda)

Searched as Echinimathilda. The Paleobiology Database treats Mathilda (Echinimathilda) as the accepted name.

No picture of Mathilda (Echinimathilda) was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Mathilda (Echinimathilda), or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
MathildaPBDB
Diet
carnivorePBDB, for Mathildidae
Life habit
epifaunalPBDB, for Mathildidae
Motility
actively mobilePBDB, for Mathildidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 37 million years on record.

The record covers at least 93.9 Mya to 56 Mya. No occurrence read is dated outside 100.5 Mya to 48.07 Mya.

Early Cretaceous — about 0 of 21 occurrencesLate Cretaceous — about 16 of 21 occurrencesLate CretaceousPaleocene — about 1 of 21 occurrencesPaleoceneEocene — about 4 of 21 occurrencesEocene102–100 Mya — about 0.1 occurrences100–98 Mya — about 0.3 occurrences98–96 Mya — about 0.3 occurrences96–94 Mya — about 0.3 occurrences94–92 Mya — about 0.1 occurrences91–89 Mya — about 0.2 occurrences89–87 Mya — about 0.4 occurrences87–85 Mya — about 0.3 occurrences85–83 Mya — about 0.1 occurrences83–82 Mya — about 0.5 occurrences82–80 Mya — about 0.5 occurrences80–78 Mya — about 0.5 occurrences78–76 Mya — about 0.5 occurrences76–74 Mya — about 0.5 occurrences74–72 Mya — about 0.5 occurrences72–71 Mya — about 3 occurrences71–69 Mya — about 3 occurrences69–67 Mya — about 3 occurrences67–65 Mya — about 2 occurrences65–63 Mya — about 0.4 occurrences63–62 Mya — about 0.4 occurrences56–54 Mya — about 0.9 occurrences54–52 Mya — about 0.9 occurrences52–51 Mya — about 0.9 occurrences51–49 Mya — about 0.9 occurrences49–47 Mya — about 0.4 occurrences93.9 Mya56 Mya102 Mya47 Mya

21 occurrences of Mathilda (Echinimathilda) 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

21 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

10 formations

Ripley — 34.49°N, 89.01°WRipley — 34.73°N, 88.95°WRipley — 35.29°N, 88.60°WReklaw — 30.80°N, 96.72°WReklaw — 30.01°N, 97.25°WCoffee Sand — 34.26°N, 88.70°WCorsicana Marl — 29.95°N, 97.71°WCorsicana Marl — 29.79°N, 97.80°WOwl Creek — 34.75°N, 88.93°WProvidence — 31.82°N, 84.97°WSevern — 38.92°N, 76.85°WMoonkinu — 11.80°S, 130.40°EKincaid — 31.29°N, 96.72°WRedding — 40.68°N, 122.02°W

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

Mathilda (Echinimathilda) and its relatives

Late Cretaceous

Where Mathilda (Echinimathilda) and its relatives were recorded in the Late Cretaceous.

Found in the same rock

772 taxa

The Paleobiology Database records 16 sites for Mathilda (Echinimathilda), 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

9 references

Each of the 21 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. 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 content0

No picture of Mathilda (Echinimathilda) was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Mathilda (Echinimathilda), or no answer at all. This entry cannot say which.

No 3D scan of Mathilda (Echinimathilda) 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.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itMathilda through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Sohl 1960