Spitidiscus

Spitidiscus is a genus of ammonites placed in the family Holcodiscidae.

Spitidiscus

Hectonichus · CC BY-SA 3.0 · 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
SpitidiscinaePBDB
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 6.8 million years on record.

The record covers at least 132.6 Mya to 125.77 Mya. No occurrence read is dated outside 137.05 Mya to 121.4 Mya.

Early Cretaceous — about 171 of 171 occurrencesEarly Cretaceous138–137 Mya — about 0.0 occurrences137–136 Mya — about 0.3 occurrences136–136 Mya — about 0.3 occurrences136–135 Mya — about 0.3 occurrences135–135 Mya — about 0.3 occurrences135–134 Mya — about 0.3 occurrences134–134 Mya — about 0.3 occurrences134–133 Mya — about 0.3 occurrences133–133 Mya — about 1 occurrence133–132 Mya — about 10 occurrences132–131 Mya — about 10 occurrences131–131 Mya — about 10 occurrences131–130 Mya — about 10 occurrences130–130 Mya — about 10 occurrences130–129 Mya — about 10 occurrences129–129 Mya — about 10 occurrences129–128 Mya — about 10 occurrences128–128 Mya — about 10 occurrences128–127 Mya — about 10 occurrences127–126 Mya — about 10 occurrences126–126 Mya — about 10 occurrences126–125 Mya — about 7 occurrences125–125 Mya — about 6 occurrences125–124 Mya — about 6 occurrences124–124 Mya — about 6 occurrences124–123 Mya — about 6 occurrences123–123 Mya — about 6 occurrences123–122 Mya — about 6 occurrences122–121 Mya — about 6 occurrences121–121 Mya — about 0.6 occurrences132.6 Mya125.77 Mya137.6 Mya120.9 Mya

171 occurrences of Spitidiscus on record, most of them in the Early 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

171 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

4 formations

Agrio — 33.63°S, 69.87°WAgrio — 34.58°S, 69.60°WAgrio — 34.63°S, 69.50°WAgrio — 37.07°S, 68.90°WAgrio — 37.02°S, 70.28°WAgrio — 37.18°S, 70.38°WAgrio — 37.27°S, 70.43°WAgrio — 37.53°S, 70.00°WAgrio — 37.78°S, 70.20°WAgrio — 38.05°S, 70.02°WAgrio — 38.18°S, 70.05°WAgrio — 38.35°S, 69.95°WAgrio — 38.47°S, 69.97°WAgrio — 38.68°S, 70.07°WEl Mergueb — 36.84°N, 9.62°EMaiolica — 43.59°N, 12.54°EMaiolica — 43.47°N, 12.72°EMaiolica — 43.53°N, 12.58°EKaliste — 49.03°N, 18.33°E

Loading coastlines…

The named rock units Spitidiscus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 137 occurrences have no formation on record, which is common for older literature.

Spitidiscus and its relatives

Early Cretaceous

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

Found in the same rock

178 taxa

The Paleobiology Database records 129 sites for Spitidiscus, 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

18 references

Each of the 171 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. 6 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 Spitidiscus

Credit
Hectonichus
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itSpitidiscinae through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Kilian 1910)