Antiacodon pygmaeus
via iDigBio · via iDigBio. 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
- AntiacodonPBDB
- Diet
- grazer, browserPBDB, for Artiodactyla
- Life habit
- ground dwellingPBDB, for Artiodactyla
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Artiodactyla
Time the record covers
At least 4.8 million years on record.
The record covers at least 45.9 Mya to 41.03 Mya. No occurrence read is dated outside 56 Mya to 33.9 Mya.
36 occurrences of Antiacodon pygmaeus 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
36 occurrences- Eocene100%
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
7 formations
- Bridger Formation20
- Aycross Formation2
- Huerfano Formation2
- "Sheep Pass" Formation1
- Wasatch Formation1
- Green River Formation1
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The named rock units Antiacodon pygmaeus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 occurrences have no formation on record, which is common for older literature.
Antiacodon pygmaeus and its relatives
EoceneWhere Antiacodon pygmaeus and its relatives were recorded in the Eocene.
Found in the same rock
377 taxa- Hyopsodus minusculus13 sites
- Omomys carteri13 sites
- Hyopsodus paulus12 sites
- Microsyops elegans11 sites
- Hyrachyus10 sites
- Hyrachyus modestus10 sites
- Sciuravus nitidus10 sites
- Washakius insignis10 sites
- Helaletes nanus8 sites
- Orohippus pumilus8 sites
- Paramys delicatus8 sites
- Scenopagus edenensis8 sites
- Sinopa rapax8 sites
- Notharctus tenebrosus7 sites
- Apatemys bellulus6 sites
- Herpetotherium innominatum6 sites
- Peradectes chesteri6 sites
- Smilodectes gracilis6 sites
- Viverravus gracilis6 sites
- Anaptomorphus westi5 sites
- Eurohippus parvulus5 sites
- Helohyus plicodon5 sites
- Miacis parvivorus5 sites
- Notharctus5 sites
The Paleobiology Database records 36 sites for Antiacodon pygmaeus, 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
12 references- Paleontology and Geology of the Bridger Formation, Southern Green River Basin, Southwestern Wyoming. Part 7. Survey of Bridgerian Artiodactyla, including description of a skull and partial skeleton of Antiacodon pygmaeus10
- Mammalian Fauna From the Lower Bridger Formation (Bridger A, Early Middle Eocene) of the Southern Green River Basin, Wyoming6
- Revision der Equoidea aus den eozänen Braunkohlen des Geiseltales bei Halle (DDR). (Revision of Equoidea from the Eocene lignite of the Geiseltal, Halle (DDR))5
- Geology and mammalian paleontology of the New Fork-Big Sandy area, Sublette County, Wyoming3
- Les mammiferes d'Egerkingen et l'histoire des faunes de l'Eocene d'Europe3
- Geology, Paleontology, and Correlation of Eocene Volcaniclastic Rocks, Southeast Absaroka Range, Hot Springs County, Wyoming2
- Fossil Mammalia of the Huerfano Formation, Eocene, of Colorado2
- Mammals of the Bridgerian (middle Eocene) Elderberry Canyon Local Fauna of eastern Nevada1
- Middle Eocene marsupials (Mammalia) from northeastern Utah and the mammalian fauna from Powder Wash1
- Revision of the Wind River faunas, early Eocene of central Wyoming. Part 5. Geology and biostratigraphy of the upper part of the Wind River Formation, northeastern Wind River Basin1
- Mammalian Faunal Zones of the Bridger Middle Eocene1
- West and Dawson, 19731
Each of the 36 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 Antiacodon pygmaeus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Antiacodon pygmaeus 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itAntiacodon through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Cope 1872)