Mecochiridae

Mecochirus longimanatus (von Schlotheim, 1820), a relative of Mecochiridae — not Mecochiridae itself

Not Mecochiridae. This is Mecochirus longimanatus (von Schlotheim, 1820), a relative — both are Mecochiridae.

Kurt Meiers · 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
GlypheoideaPBDB
Diet
carnivorePBDB, for Decapoda
Life habit
infaunalPBDB
Motility
actively mobilePBDB, for Malacostraca
Vision
well-developedPBDB, for Malacostraca

Time the record covers

At least 136 million years on record.

The record covers at least 192.9 Mya to 56 Mya. No occurrence read is dated outside 199.5 Mya to 48.07 Mya.

Late Triassic — about 0 of 98 occurrencesEarly Jurassic — about 3 of 98 occurrencesEarly JurassicMiddle Jurassic — about 17 of 98 occurrencesMiddle JurassicLate Jurassic — about 16 of 98 occurrencesLate JurassicEarly Cretaceous — about 47 of 98 occurrencesEarly CretaceousLate Cretaceous — about 14 of 98 occurrencesLate CretaceousPaleocene — about 0 of 98 occurrencesEocene — about 1 of 98 occurrences203–197 Mya — about 0.7 occurrences197–192 Mya — about 1 occurrence187–182 Mya — about 1 occurrence176–171 Mya — about 9 occurrences171–166 Mya — about 2 occurrences166–161 Mya — about 7 occurrences161–155 Mya — about 8 occurrences155–150 Mya — about 1 occurrence150–145 Mya — about 5 occurrences145–140 Mya — about 0.7 occurrences140–134 Mya — about 4 occurrences134–129 Mya — about 6 occurrences129–124 Mya — about 4 occurrences124–119 Mya — about 16 occurrences119–113 Mya — about 8 occurrences113–108 Mya — about 5 occurrences108–103 Mya — about 3 occurrences103–98 Mya — about 2 occurrences98–92 Mya — about 1 occurrence87–82 Mya — about 0.9 occurrences82–77 Mya — about 3 occurrences77–71 Mya — about 3 occurrences71–66 Mya — about 5 occurrences66–61 Mya — about 0.0 occurrences61–56 Mya — about 0.1 occurrences56–50 Mya — about 0.7 occurrences50–45 Mya — about 0.3 occurrences192.9 Mya56 Mya203 Mya45 Mya

98 occurrences of Mecochiridae on record, most of them in the Early Cretaceous. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

98 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

31 formations

Atherfield Clay — 50.60°N, 1.32°WAtherfield Clay — 50.61°N, 1.36°WOpalinuston — 47.43°N, 8.15°ESan Juan Raya — 18.34°N, 97.58°WSan Juan Raya — 18.53°N, 97.78°WOxford Clay — 52.33°N, 0.09°WSolnhofen — 48.90°N, 11.11°ESpartan Glacier — 71.46°S, 68.42°WSpartan Glacier — 71.48°S, 68.51°WSpartan Glacier — 71.99°S, 60.27°WArgiles a Lopha gregarea — 49.30°N, 0.07°WAgrio — 37.27°S, 70.48°WOpalinus Clay — 47.45°N, 8.17°EOpalinus Clay — 47.33°N, 7.84°EKiowa — 38.61°N, 97.96°WKiowa — 38.57°N, 97.81°WOrnatenton — 48.53°N, 9.35°EOrnatenton — 52.42°N, 7.92°EPflugerville — 30.33°N, 97.71°WAlcobaca — 39.55°N, 9.00°WMulichinco — 37.27°S, 70.48°WLombardische Kieselkalk — 46.00°N, 9.08°EOsta Arena — 43.80°S, 69.52°WYatova — 40.24°N, 1.41°WCuchillo Parado — 28.64°N, 106.09°WGargasian — 29.58°N, 105.09°WLondon Clay — 51.42°N, 0.90°ESundance — 44.72°N, 104.61°WSpray — 49.53°N, 124.71°WStonesfield Slate — 51.80°N, 1.88°WPolacos — 40.56°N, 0.48°E

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The named rock units Mecochiridae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 further formations hold fewer occurrences each and are not listed. 38 occurrences have no formation on record, which is common for older literature.

Mecochiridae and its relatives

Early Cretaceous

Where Mecochiridae and its relatives were recorded in the Early Cretaceous.

Found in the same rock

588 taxa

The Paleobiology Database records 88 sites for Mecochiridae, 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

46 references

Each of the 98 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. 34 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 Mecochirus longimanatus (von Schlotheim, 1820)

Source
GBIF
Credit
Kurt Meiers
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Mecochiridae was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itGlypheoidea through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Van Straelen 1925