Kossmaticeras

Kossmaticeras is an extinct ammonoid genus belonging to the desmoceratacean family Kossmaticeratidae. Species in this genus were fast-moving nektonic carnivores. They lived during the Late Cretaceous, from the upper Turonian to the upper Maastrichtian ages. The type species of the genus is K. theobaldianus.

Kossmaticeras

Uncredited · 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
KossmaticeratinaePBDB
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 least 28 million years on record.

The record covers at least 100.5 Mya to 72.2 Mya. No occurrence read is dated outside 113.2 Mya to 66 Mya.

Early Cretaceous — about 1 of 55 occurrencesEarly CretaceousLate Cretaceous — about 54 of 55 occurrencesLate CretaceousPaleocene — about 0 of 55 occurrences114–113 Mya — about 0.1 occurrences113–111 Mya — about 0.1 occurrences111–109 Mya — about 0.1 occurrences109–108 Mya — about 0.1 occurrences108–106 Mya — about 0.1 occurrences106–104 Mya — about 0.1 occurrences104–103 Mya — about 0.1 occurrences103–101 Mya — about 0.1 occurrences101–99 Mya — about 0.0 occurrences95–93 Mya — about 0.5 occurrences93–91 Mya — about 0.8 occurrences91–90 Mya — about 1 occurrence90–88 Mya — about 6 occurrences88–86 Mya — about 6 occurrences86–85 Mya — about 10 occurrences85–83 Mya — about 8 occurrences83–81 Mya — about 0.8 occurrences81–80 Mya — about 0.8 occurrences80–78 Mya — about 0.8 occurrences78–77 Mya — about 0.8 occurrences77–75 Mya — about 0.8 occurrences75–73 Mya — about 0.8 occurrences73–72 Mya — about 2 occurrences72–70 Mya — about 4 occurrences70–68 Mya — about 4 occurrences68–67 Mya — about 4 occurrences67–65 Mya — about 2 occurrences100.5 Mya72.2 Mya114.1 Mya65.1 Mya

55 occurrences of Kossmaticeras 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

55 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

15 formations

St Lucia — 27.88°S, 32.42°ESt Lucia — 28.03°S, 32.28°ESt Lucia — 28.43°S, 32.18°ESt Lucia — 28.45°S, 32.32°ESt Lucia — 28.06°S, 32.39°EQuiriquina — 36.72°S, 73.12°WQuiriquina — 36.61°S, 72.97°WQuiriquina — 36.61°S, 73.06°WMiria — 22.68°S, 114.24°EMiria — 22.96°S, 114.08°EUmzamba — 31.10°S, 30.17°EUmzamba — 29.87°S, 31.02°EAnaipadi — 11.11°N, 78.97°EOtamatea — 36.20°S, 174.29°EOkarahia Sandstone — 42.57°S, 173.52°EMzamba — 30.75°S, 30.62°ESanta Marta — 63.75°S, 58.00°WGarudamangalam — 11.11°N, 78.98°EWhisky Bay — 63.75°S, 58.00°WTe Mai — 40.88°S, 176.97°EHaida — 53.25°N, 132.00°WPanoche — 37.45°N, 121.28°WSalinas — 14.25°S, 12.36°E

Loading coastlines…

The named rock units Kossmaticeras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 occurrences have no formation on record, which is common for older literature.

Kossmaticeras and its relatives

Late Cretaceous

Where Kossmaticeras and its relatives were recorded in the Late Cretaceous.

Found in the same rock

222 taxa

The Paleobiology Database records 44 sites for Kossmaticeras, 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

24 references

Each of the 55 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. 12 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 Kossmaticeras

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

3D model

Source
Sketchfab
Credit
nzfauna
Licence
CC Attribution-NonCommercial
Commercial use
the licence does not allow it

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 itKossmaticeratinae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Grossouvre 1901