Mercaticeras

Mercaticeras is an extinct genus of ammonites belonging to the family Hildoceratidae.

Mercaticeras

Hectonichus · CC BY-SA 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
HildoceratinaePBDB
Diet
carnivorePBDB, for Ammonoidea
Life habit
nektonicPBDB, for Ammonoidea
Motility
fast-movingPBDB, for Ammonoidea
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At most 23 million years on record.

Every occurrence read is dated to somewhere between 184.2 Mya and 161.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Jurassic — about 94 of 95 occurrencesEarly JurassicMiddle Jurassic — about 1 of 95 occurrencesMiddle JurassicLate Jurassic — about 0 of 95 occurrences185–184 Mya — about 0.3 occurrences184–183 Mya — about 0.8 occurrences183–182 Mya — about 9 occurrences182–182 Mya — about 12 occurrences182–181 Mya — about 12 occurrences181–180 Mya — about 10 occurrences180–179 Mya — about 8 occurrences179–178 Mya — about 8 occurrences178–178 Mya — about 8 occurrences178–177 Mya — about 8 occurrences177–176 Mya — about 8 occurrences176–175 Mya — about 8 occurrences175–174 Mya — about 5 occurrences174–174 Mya — about 0.0 occurrences174–173 Mya — about 0.0 occurrences173–172 Mya — about 0.0 occurrences172–171 Mya — about 0.0 occurrences171–170 Mya — about 0.0 occurrences170–170 Mya — about 0.0 occurrences170–169 Mya — about 0.0 occurrences169–168 Mya — about 0.0 occurrences168–167 Mya — about 0.0 occurrences167–167 Mya — about 0.0 occurrences167–166 Mya — about 0.0 occurrences166–165 Mya — about 0.0 occurrences165–164 Mya — about 0.0 occurrences164–163 Mya — about 0.0 occurrences163–163 Mya — about 0.0 occurrences163–162 Mya — about 0.0 occurrences162–161 Mya — about 0.0 occurrences184.7 Mya161 Mya

95 occurrences of Mercaticeras on record, most of them in the Early Jurassic. 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

95 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

8 formations

Bugarone — 43.33°N, 13.22°EKisgerecse — 47.70°N, 18.43°EKisgerecse — 47.66°N, 18.47°EKisgerecse Marl — 47.70°N, 18.49°ESubbetic Basin — 37.59°N, 3.21°WSubbetic Basin — 38.06°N, 3.26°WSubbetic Basin — 38.13°N, 1.47°WWhiteaves — 52.96°N, 131.61°WWhiteaves — 53.42°N, 132.27°WWhiteaves — 53.20°N, 132.05°WChâabet El Attaris — 35.10°N, 9.71°EStaa — 35.11°N, 9.68°ESierra Fraga — 26.99°S, 69.59°W

Loading coastlines…

The named rock units Mercaticeras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 18 occurrences have no formation on record, which is common for older literature.

Mercaticeras and its relatives

Early Jurassic

Where Mercaticeras and its relatives were recorded in the Early Jurassic.

Found in the same rock

107 taxa

The Paleobiology Database records 61 sites for Mercaticeras, 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

15 references

Each of the 95 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. 3 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 Mercaticeras

Credit
Hectonichus
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Mercaticeras 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 itHildoceratinae through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.