Bachmannia chubutensis

Bachmannia is an extinct genus of ray-finned fish from the order of the catfishes (Siluriformes), containing a single species, B. chubutensis. Fossils of the species, dated to the early Eocene, were found in the Laguna del Hunco site, a caldera in the Argentinean province of Chubut, which is filled with fine-grained, layered mudstones and sandstones interspersed with pyroclastic deposits. The genus was named by Mathilde Dolgopol de Sáez, in honor of the German physician and naturalist Franz Ewald Theodor Bachmann.

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

On record

Recorded, not inferred
Sits inside
BachmanniaPBDB
Diet
carnivorePBDB, for Siluriformes
Life habit
nektobenthicPBDB, for Siluriformes
Motility
actively mobilePBDB, for Siluriformes
Environment
freshwaterPBDB, for Siluriformes

Time the record covers

At most 8 million years on record.

The one occurrence read is dated to somewhere between 56 Mya and 48.07 Mya, which is a dating window rather than a span.

Paleocene — about 0 of 1 occurrenceEocene — about 1 of 1 occurrenceEocene56–56 Mya — about 0.0 occurrences56–56 Mya — about 0.0 occurrences56–55 Mya — about 0.0 occurrences55–55 Mya — about 0.0 occurrences55–55 Mya — about 0.0 occurrences55–54 Mya — about 0.0 occurrences54–54 Mya — about 0.0 occurrences54–54 Mya — about 0.0 occurrences54–54 Mya — about 0.0 occurrences54–53 Mya — about 0.0 occurrences53–53 Mya — about 0.0 occurrences53–53 Mya — about 0.0 occurrences53–52 Mya — about 0.0 occurrences52–52 Mya — about 0.0 occurrences52–52 Mya — about 0.0 occurrences52–51 Mya — about 0.0 occurrences51–51 Mya — about 0.0 occurrences51–51 Mya — about 0.0 occurrences51–51 Mya — about 0.0 occurrences51–50 Mya — about 0.0 occurrences50–50 Mya — about 0.0 occurrences50–50 Mya — about 0.0 occurrences50–49 Mya — about 0.0 occurrences49–49 Mya — about 0.0 occurrences49–49 Mya — about 0.0 occurrences49–48 Mya — about 0.0 occurrences48–48 Mya — about 0.0 occurrences48–48 Mya — about 0.0 occurrences56.5 Mya47.6 Mya

1 occurrence of Bachmannia chubutensis on record, most of them in the Eocene. 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.

Found in

1 formation

Laguna del Hunco — 42.33°S, 70.00°W

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The named rock units Bachmannia chubutensis has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Bachmannia chubutensis and its relatives

Eocene

Where Bachmannia chubutensis and its relatives were recorded in the Eocene.

Found in the same rock

The Paleobiology Database records no fossil sites for Bachmannia chubutensis, so there is nothing to compare it with.

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 content0

No picture of Bachmannia chubutensis was found. Wikipedia, Wikidata and iDigBio were searched and had none.

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 Bachmannia chubutensis, or no answer at all. This entry cannot say which.

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 itBachmannia through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Dolgopol 1941