Antarctodon sobrali

Antarctodon is an extinct genus of mammals from the Early Eocene. It is a basal astrapotherian which lived in what is now Seymour Island, Antarctic Peninsula, at that moment still connected to South America where most of the astrapotherians were found. The holotype and only specimen MLP 08-XI-30-1, an isolated right p4 or m1, was found in the Telm 5 Member of the La Meseta Formation in West Antarctica. It was first named by Mariano Bond, Alejandro Kramarz, Ross D. E. MacPhee and Marcelo Reguero in 2011 and the type species is Antarctodon sobrali.

No picture of Antarctodon sobrali 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 Antarctodon sobrali, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
AntarctodonPBDB
Diet
herbivorePBDB, for Astrapotheria
Life habit
scansorialPBDB, for Eutheria
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At most 3.4 million years on record.

Every occurrence read is dated to somewhere between 41.03 Mya and 37.71 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Eocene — about 2 of 2 occurrencesEocene41–41 Mya — about 0.0 occurrences41–41 Mya — about 0.1 occurrences41–41 Mya — about 0.1 occurrences41–41 Mya — about 0.1 occurrences41–40 Mya — about 0.1 occurrences40–40 Mya — about 0.1 occurrences40–40 Mya — about 0.1 occurrences40–40 Mya — about 0.1 occurrences40–40 Mya — about 0.1 occurrences40–40 Mya — about 0.1 occurrences40–40 Mya — about 0.1 occurrences40–39 Mya — about 0.1 occurrences39–39 Mya — about 0.1 occurrences39–39 Mya — about 0.1 occurrences39–39 Mya — about 0.1 occurrences39–39 Mya — about 0.1 occurrences39–39 Mya — about 0.1 occurrences39–39 Mya — about 0.1 occurrences39–38 Mya — about 0.1 occurrences38–38 Mya — about 0.1 occurrences38–38 Mya — about 0.1 occurrences38–38 Mya — about 0.1 occurrences38–38 Mya — about 0.1 occurrences38–38 Mya — about 0.0 occurrences41.53 Mya37.21 Mya

2 occurrences of Antarctodon sobrali 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

2 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

La Meseta — 64.23°S, 56.67°WLa Meseta — 64.24°S, 56.60°W

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

Antarctodon sobrali and its relatives

Eocene

Where Antarctodon sobrali and its relatives were recorded in the Eocene.

Found in the same rock

97 taxa

The Paleobiology Database records 2 sites for Antarctodon sobrali, 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 2 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. 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 Antarctodon sobrali 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 Antarctodon sobrali, or no answer at all. This entry cannot say which.

No 3D scan of Antarctodon sobrali 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 itAntarctodon through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Bond et al. 2011