Didemnum carpaticum

Didemnum is a genus of colonial tunicates in the family Didemnidae. It is the most speciose genus in the didemnid family. Species in this genus often have small calcareous spicules embedded in the tunic and form irregular or lobed colonies. Some Didemnum species, including Didemnum vexillum and Didemnum perlucidem are considered invasive species. In early 2006, Didemnum vexillum was found covering a 230 km2 area of cobble habitat in Georges Bank off the coast of New England, and is classified as an invasive species of greatest concern in coastal areas throughout Europe, New Zealand, and North America. Didemnum sp. invasions have also been recorded in Canada, the Mediterranean, and the Netherlands.

A picture published with the record for Didemnum carpaticum. What it shows has not been checked.

Silke Baron · CC BY 2.0 · 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.

Time the record covers

At most 12 million years on record.

The one occurrence read is dated to somewhere between 132.6 Mya and 121.4 Mya, which is a dating window rather than a span.

Early Cretaceous — about 1 of 1 occurrenceEarly Cretaceous133–132 Mya — about 0.0 occurrences132–132 Mya — about 0.0 occurrences132–131 Mya — about 0.0 occurrences131–131 Mya — about 0.0 occurrences131–131 Mya — about 0.0 occurrences131–130 Mya — about 0.0 occurrences130–130 Mya — about 0.0 occurrences130–129 Mya — about 0.0 occurrences129–129 Mya — about 0.0 occurrences129–129 Mya — about 0.0 occurrences129–128 Mya — about 0.0 occurrences128–128 Mya — about 0.0 occurrences128–127 Mya — about 0.0 occurrences127–127 Mya — about 0.0 occurrences127–127 Mya — about 0.0 occurrences127–126 Mya — about 0.0 occurrences126–126 Mya — about 0.0 occurrences126–125 Mya — about 0.0 occurrences125–125 Mya — about 0.0 occurrences125–125 Mya — about 0.0 occurrences125–124 Mya — about 0.0 occurrences124–124 Mya — about 0.0 occurrences124–123 Mya — about 0.0 occurrences123–123 Mya — about 0.0 occurrences123–123 Mya — about 0.0 occurrences123–122 Mya — about 0.0 occurrences122–122 Mya — about 0.0 occurrences122–121 Mya — about 0.0 occurrences133.1 Mya120.9 Mya

1 occurrence of Didemnum carpaticum 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

1 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.

Didemnum carpaticum and its relatives

Early Cretaceous

Where Didemnum carpaticum and its relatives were recorded in the Early Cretaceous.

Found in the same rock

26 taxa

The Paleobiology Database records 1 site for Didemnum carpaticum, 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

1 reference

Each of the 1 occurrence 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Didemnum carpaticum

Credit
Silke Baron
Licence
CC BY 2.0
Commercial use
the licence allows it

No 3D scan of Didemnum carpaticum was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0.