Callopterus

Ainia is an extinct genus of prehistoric ray-finned fish that lived during the Kimmeridgian stage of the Late Jurassic epoch. It contains a single species, A. armata, known from the famous Solnhofen Limestone of Germany. It is a distant relative of the bowfin, although it is more closely related to genera such as Caturus and Osteorachis.

Callopterus

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
FuridaePBDB
Motility
actively mobilePBDB, for Osteichthyes

Time the record covers

At least 23 million years on record.

The record covers at least 149.2 Mya to 125.77 Mya. No occurrence read is dated outside 152.21 Mya to 119.57 Mya.

Late Jurassic — about 1 of 3 occurrencesLate JurassicEarly Cretaceous — about 2 of 3 occurrencesEarly Cretaceous153–152 Mya — about 0.2 occurrences152–151 Mya — about 0.4 occurrences151–149 Mya — about 0.4 occurrences149–148 Mya — about 0.1 occurrences139–138 Mya — about 0.5 occurrences138–137 Mya — about 0.5 occurrences127–126 Mya — about 0.0 occurrences126–125 Mya — about 0.2 occurrences125–123 Mya — about 0.2 occurrences123–122 Mya — about 0.2 occurrences122–121 Mya — about 0.2 occurrences121–120 Mya — about 0.2 occurrences120–119 Mya — about 0.1 occurrences149.2 Mya125.77 Mya152.9 Mya118.9 Mya

3 occurrences of Callopterus 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

3 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

2 formations

Bückeberg — 52.26°N, 7.03°ESainte-Barbe Clays — 50.48°N, 3.65°E

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The named rock units Callopterus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Callopterus and its relatives

Early Cretaceous

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

Found in the same rock

77 taxa

The Paleobiology Database records 2 sites for Callopterus, 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

3 references

Each of the 3 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 content1

Picture of Callopterus

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

No 3D scan of Callopterus 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 itFuridae through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Thollière 1854