Proarcestes balfouri

Yale Peabody Museum · CC0 · via GBIF. 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
- ProarcestesPBDB
- Diet
- carnivorePBDB, for Ceratitida
- Life habit
- nektonicPBDB, for Ceratitida
- Motility
- actively mobilePBDB, for Ceratitida
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At most 18 million years on record.
Every occurrence read is dated to somewhere between 244.4 Mya and 227.3 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
12 occurrences of Proarcestes balfouri on record, most of them in the Middle Triassic. 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
12 occurrencesThese 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
- Prida Formation · Star Peak Group9
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The named rock units Proarcestes balfouri has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Proarcestes balfouri and its relatives
Middle TriassicWhere Proarcestes balfouri and its relatives were recorded in the Middle Triassic.
Found in the same rock
120 taxa- Longobardites parvus4 sites
- Daonella americana3 sites
- Gymnotoceras blakei3 sites
- Paranautilus smithi3 sites
- Trematoceras elegans3 sites
- Tropigastrites lahontanus3 sites
- Acrochordiceras hyatti2 sites
- Aplococeras smithi2 sites
- Aplococeras vogdesi2 sites
- Daonella sturi2 sites
- Eutomoceras dunni2 sites
- Grypoceras whitneyi2 sites
- Gymnotoceras rotelliformis2 sites
- Parafrechites meeki2 sites
- Sageceras walteri2 sites
- Silberlingitoides cricki2 sites
- Tropigastrites louderbacki2 sites
- Acrochordiceras1 site
- Acrochordiceras carolinae1 site
- Acrochordiceras haueri1 site
- Aghdarbandites ismidicus1 site
- Angustothyris angustaeformis1 site
- Atractites1 site
- Atractites bithynicus1 site
The Paleobiology Database records 11 sites for Proarcestes balfouri, 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- Middle Triassic Molluscan Fossils of Biostratigraphic Significance from the Humboldt Range, Northwestern Nevada10
- Die Trias von Bithynien (Anatolien)1
- The Middle Triassic marine invertebrate faunas of North America1
Each of the 12 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 Proarcestes balfouri
- Source
- GBIF
- Credit
- Yale Peabody Museum
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Proarcestes balfouri 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itProarcestes through timeFormations of the Middle TriassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Oppel 1863)