Romaniceras (Romaniceras) mexicanum

No picture of Romaniceras (Romaniceras) mexicanum was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Romaniceras (Romaniceras) mexicanum, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
Romaniceras (Romaniceras)PBDB
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 11 million years on record.

Every occurrence read is dated to somewhere between 100.5 Mya and 89.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Cretaceous — about 0 of 35 occurrencesLate Cretaceous — about 35 of 35 occurrencesLate Cretaceous101–100 Mya — about 0.2 occurrences100–100 Mya — about 0.3 occurrences100–99 Mya — about 0.3 occurrences99–99 Mya — about 0.3 occurrences99–99 Mya — about 0.3 occurrences99–98 Mya — about 0.3 occurrences98–98 Mya — about 0.3 occurrences98–97 Mya — about 0.3 occurrences97–97 Mya — about 0.3 occurrences97–97 Mya — about 0.3 occurrences97–96 Mya — about 0.3 occurrences96–96 Mya — about 0.3 occurrences96–96 Mya — about 0.3 occurrences96–95 Mya — about 0.3 occurrences95–95 Mya — about 0.3 occurrences95–94 Mya — about 0.3 occurrences94–94 Mya — about 0.3 occurrences94–94 Mya — about 2 occurrences94–93 Mya — about 3 occurrences93–93 Mya — about 3 occurrences93–92 Mya — about 3 occurrences92–92 Mya — about 3 occurrences92–92 Mya — about 3 occurrences92–91 Mya — about 3 occurrences91–91 Mya — about 3 occurrences91–90 Mya — about 3 occurrences90–90 Mya — about 3 occurrences90–90 Mya — about 2 occurrences101 Mya89.3 Mya

35 occurrences of Romaniceras (Romaniceras) mexicanum 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

35 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

5 formations

Mancos Shale — 35.87°N, 106.91°WMancos Shale — 35.28°N, 106.96°WMancos Shale — 35.98°N, 106.90°WMancos Shale — 35.72°N, 106.93°WMancos Shale — 35.58°N, 106.97°WMancos Shale — 35.47°N, 106.88°WMancos Shale — 35.29°N, 107.09°WMancos Shale — 35.28°N, 106.94°WIndidura — 29.35°N, 101.05°WIndidura — 21.93°N, 102.17°WCarlile Shale — 36.36°N, 104.52°WCarlile Shale — 36.32°N, 104.45°WCarlile Shale — 36.34°N, 104.46°WCarlile Shale — 36.52°N, 104.30°WBoquillas — 29.50°N, 105.00°WMassillan — 44.24°N, 4.75°E

Loading coastlines…

The named rock units Romaniceras (Romaniceras) mexicanum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Romaniceras (Romaniceras) mexicanum and its relatives

Late Cretaceous

Where Romaniceras (Romaniceras) mexicanum and its relatives were recorded in the Late Cretaceous.

Found in the same rock

21 taxa

The Paleobiology Database records 31 sites for Romaniceras (Romaniceras) mexicanum, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

6 references

Each of the 35 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 Romaniceras (Romaniceras) mexicanum was found. Wikidata and iDigBio were searched and had none.

Wikipedia and 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 Romaniceras (Romaniceras) mexicanum, or no answer at all. This entry cannot say which.

No 3D scan of Romaniceras (Romaniceras) mexicanum 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 itRomaniceras (Romaniceras) through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Jones 1938)