Olivooides

Olivooides is an extinct, sphere-shaped microfossil from Cambrian strata. Fossils are currently known only from China. Olivooides was approximately 600‐870 μm in diameter. It was an egg with a large yolk content. Fossils from Shaanxi, China can be found in the cleavage, gastrulation, organogenesis, cuticularization, pre‐hatching, post‐hatching and subsequent growth stages of development. This fossil is a result of soft-bodied preservation. Olivooides has pentaradial symmetry and is usually preserved by calcium phosphate endocast. The internal structure is rarely preserved. It has no larval stage, so it likely had a quick and direct development.

Olivooides

Xing Wang, Jean Vannier, Xiaoguang Yang, Lucas Leclère, Qiang Ou, Xikun Song, Tsuyoshi Komiya, Jian Han · CC BY 4.0 · via Wikidata/Commons. 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
CoronataePBDB
Vision
blindPBDB, for Scyphozoa

Time the record covers

At least 15 million years on record.

The record covers at least 530.7 Mya to 515.3 Mya. No occurrence read is dated outside 538.8 Mya to 506.5 Mya.

Cambrian — about 63 of 63 occurrencesCambrian539–538 Mya — about 2 occurrences538–537 Mya — about 4 occurrences537–536 Mya — about 4 occurrences536–535 Mya — about 4 occurrences535–534 Mya — about 4 occurrences534–533 Mya — about 4 occurrences533–532 Mya — about 4 occurrences532–530 Mya — about 4 occurrences530–529 Mya — about 4 occurrences529–528 Mya — about 4 occurrences528–527 Mya — about 4 occurrences527–526 Mya — about 4 occurrences526–525 Mya — about 3 occurrences525–524 Mya — about 2 occurrences524–523 Mya — about 2 occurrences523–522 Mya — about 2 occurrences522–520 Mya — about 1 occurrence520–519 Mya — about 0.5 occurrences519–518 Mya — about 0.5 occurrences518–517 Mya — about 0.5 occurrences517–516 Mya — about 0.5 occurrences516–515 Mya — about 0.6 occurrences515–514 Mya — about 0.7 occurrences514–513 Mya — about 0.7 occurrences513–511 Mya — about 0.7 occurrences511–510 Mya — about 0.7 occurrences510–509 Mya — about 0.6 occurrences509–508 Mya — about 0.5 occurrences508–507 Mya — about 0.5 occurrences507–506 Mya — about 0.2 occurrences530.7 Mya515.3 Mya539.4 Mya505.9 Mya

63 occurrences of Olivooides on record, most of them in the Cambrian. 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

63 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

9 formations

Dengying — 32.98°N, 106.27°EDengying — 32.50°N, 107.00°EDengying — 26.63°N, 105.85°EDengying — 32.35°N, 106.82°EDengying — 25.52°N, 103.07°EDengying — 24.72°N, 102.56°EKuanchuanpu — 33.00°N, 106.17°EKuanchuanpu — 32.50°N, 106.92°EKuanchuanpu — 32.97°N, 106.25°EMaidiping — 29.53°N, 103.39°EZhujiaqing — 26.28°N, 103.22°ETal — 30.07°N, 78.48°ETal — 30.35°N, 78.17°ETal — 30.45°N, 78.08°EUst-Yudoma — 57.67°N, 131.83°EUst-Yudoma — 57.17°N, 132.00°ESoltanieh — 36.00°N, 51.50°ETaozichong — 26.55°N, 106.47°EAftenstjernesø — 81.57°N, 42.92°W

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The named rock units Olivooides has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Olivooides and its relatives

Cambrian

Where Olivooides and its relatives were recorded in the Cambrian.

Found in the same rock

155 taxa

The Paleobiology Database records 60 sites for Olivooides, 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

16 references

Each of the 63 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. 4 further references are not listed. 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 Olivooides

Credit
Xing Wang, Jean Vannier, Xiaoguang Yang, Lucas Leclère, Qiang Ou, Xikun Song, Tsuyoshi Komiya, Jian Han
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Olivooides 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 itCoronatae through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Qian 1977