Placozygus

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

On record

Recorded, not inferred
Sits inside
ChiastozygaceaePBDB
Diet
"photoautotroph"PBDB, for Haptophyta
Life habit
planktonic, depth=surfacePBDB, for Haptophyta
Motility
passively mobilePBDB, for Haptophyta
Environment
oceanic,oligotrophic,marine,brackishPBDB, for Haptophyta

Time the record covers

At least 6.2 million years on record.

The record covers at least 72.2 Mya to 66 Mya. No occurrence read is dated outside 143.1 Mya to 61.66 Mya.

Late Jurassic — about 0 of 22 occurrencesEarly Cretaceous — about 1 of 22 occurrencesEarly CretaceousLate Cretaceous — about 11 of 22 occurrencesLate CretaceousPaleocene — about 10 of 22 occurrences145–142 Mya — about 0.0 occurrences142–139 Mya — about 0.0 occurrences139–136 Mya — about 0.0 occurrences136–133 Mya — about 0.0 occurrences133–131 Mya — about 0.0 occurrences131–128 Mya — about 0.0 occurrences128–125 Mya — about 0.0 occurrences125–122 Mya — about 0.0 occurrences122–119 Mya — about 0.0 occurrences119–116 Mya — about 0.0 occurrences116–114 Mya — about 0.0 occurrences114–111 Mya — about 0.0 occurrences111–108 Mya — about 0.0 occurrences108–105 Mya — about 0.0 occurrences105–102 Mya — about 0.0 occurrences102–100 Mya — about 0.0 occurrences100–97 Mya — about 0.0 occurrences97–94 Mya — about 0.0 occurrences94–91 Mya — about 0.0 occurrences91–88 Mya — about 0.0 occurrences88–85 Mya — about 0.0 occurrences85–83 Mya — about 0.1 occurrences83–80 Mya — about 0.3 occurrences80–77 Mya — about 0.3 occurrences77–74 Mya — about 0.7 occurrences74–71 Mya — about 2 occurrences71–69 Mya — about 4 occurrences69–66 Mya — about 4 occurrences66–63 Mya — about 7 occurrences63–60 Mya — about 3 occurrences72.2 Mya – 66 Mya145 Mya60 Mya

22 occurrences of Placozygus on record, most of them in the Late Cretaceous. 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

22 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

6 formations

Jagüel — 39.86°S, 67.62°WJagüel — 39.86°S, 66.62°WJagüel — 39.20°S, 67.38°WJagüel — 38.10°S, 68.38°WPedro Luro — 39.50°S, 62.68°WCampo Bola — 51.74°S, 69.17°WPaleocene subsurface — 42.48°S, 63.62°WAvezac — 43.67°N, 1.11°WPedro Luro — 39.71°S, 61.04°W

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The named rock units Placozygus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Placozygus and its relatives

Late Cretaceous

Where Placozygus and its relatives were recorded in the Late Cretaceous.

Found in the same rock

184 taxa

The Paleobiology Database records 20 sites for Placozygus, 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

8 references

Each of the 22 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 Placozygus 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 Placozygus, or no answer at all. This entry cannot say which.

No 3D scan of Placozygus 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 itChiastozygaceae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hoffman 1970