Protoxiphotractus
No picture of Protoxiphotractus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Protoxiphotractus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- StylosphaeridaePBDB
Time the record covers
At least 32 million years on record.
The record covers at least 93.9 Mya to 61.66 Mya. No occurrence read is dated outside 100.5 Mya to 59.24 Mya.
41 occurrences of Protoxiphotractus on record, most of them in the Paleocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
41 occurrences- Late Cretaceous32%
- Paleocene68%
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
5 formations
- Mead Hill Formation23
- Urakawa Formation · Upper Yezo Group3
- Scaglia Bianca Formation2
- Gedeller Formation1
- A Formation · Hakobuchi Group1
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The named rock units Protoxiphotractus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 occurrences have no formation on record, which is common for older literature.
Protoxiphotractus and its relatives
PaleoceneWhere Protoxiphotractus and its relatives were recorded in the Paleocene.
Found in the same rock
116 taxa- Amphipyndax stocki35 sites
- Mita34 sites
- Actinomminae32 sites
- Cornutella californica32 sites
- Dictyomitra andersoni32 sites
- Lithomespilus32 sites
- Amphisphaera31 sites
- Lithelius31 sites
- Stichomitra carnegiense31 sites
- Archaeodictyomitra30 sites
- Theocampe30 sites
- Theocapsomma30 sites
- Dictyomitra multicostata29 sites
- Eucyrtidiidae29 sites
- Myllocercion29 sites
- Spongodiscus29 sites
- Stichomitra29 sites
- Tholodiscus ocellatus28 sites
- Amphipternis27 sites
- Lithatractus pusillus27 sites
- Lithocampe27 sites
- Bathropyramis25 sites
- Cyrtocapsa25 sites
- Lithomelissa25 sites
The Paleobiology Database records 36 sites for Protoxiphotractus, 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
6 references- Stratigraphic, paleontological and geochemical data from Upper Cretaceous and Lower Paleocene strata in southeastern Marlborough, New Zealand34
- Cretaceous radiolarian biostratigraphy of the Urakawa and Obira areas, Hokkaido3
- First evidence of Campanian radiolarians in Turkey and implications for the tectonic setting of the Upper Antalya Nappes1
- The Radiolarian biotic response during OAE2. A high resolution study across the Bonarelli Level at Bottaccione (Gubbio, Italy)1
- Biochronology an Paleontology of Mid-Cretaceous Radiolarians from Northern Apennines (Italy) and Betic Cordillera (Spain)1
- Radiolarian biostratigraphic study of the Hakobuchi Group in the Nakatonbetsu area, north Hokkaido1
Each of the 41 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 content0
No picture of Protoxiphotractus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Protoxiphotractus, or no answer at all. This entry cannot say which.
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itStylosphaeridae through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Pessagno 1973