Trenella bifrons

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

On record

Recorded, not inferred
Sits inside
TrenellaPBDB
Diet
grazerPBDB, for Yochelcionelloidea
Life habit
low-level epifaunalPBDB, for Yochelcionelloidea
Motility
slow-movingPBDB, for Yochelcionelloidea
Vision
blindPBDB, for Trenellidae
Environment
marinePBDB, for Helcionelloida

Time the record covers

At most 3.9 million years on record.

Every occurrence read is dated to somewhere between 516 Mya and 512.1 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Cambrian — about 8 of 8 occurrencesCambrian516–516 Mya — about 0.3 occurrences516–516 Mya — about 0.3 occurrences516–516 Mya — about 0.3 occurrences516–515 Mya — about 0.3 occurrences515–515 Mya — about 0.3 occurrences515–515 Mya — about 0.3 occurrences515–515 Mya — about 0.3 occurrences515–515 Mya — about 0.3 occurrences515–515 Mya — about 0.3 occurrences515–514 Mya — about 0.3 occurrences514–514 Mya — about 0.3 occurrences514–514 Mya — about 0.3 occurrences514–514 Mya — about 0.3 occurrences514–514 Mya — about 0.3 occurrences514–514 Mya — about 0.3 occurrences514–513 Mya — about 0.3 occurrences513–513 Mya — about 0.3 occurrences513–513 Mya — about 0.3 occurrences513–513 Mya — about 0.3 occurrences513–513 Mya — about 0.3 occurrences513–513 Mya — about 0.3 occurrences513–512 Mya — about 0.3 occurrences512–512 Mya — about 0.3 occurrences512–512 Mya — about 0.3 occurrences516.5 Mya511.6 Mya

8 occurrences of Trenella bifrons 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

8 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

2 formations

Parara Limestone — 34.92°S, 137.80°EParara — 34.73°S, 137.63°EParara — 34.80°S, 137.69°E

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The named rock units Trenella bifrons has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Trenella bifrons and its relatives

Cambrian

Where Trenella bifrons and its relatives were recorded in the Cambrian.

Found in the same rock

67 taxa

The Paleobiology Database records 6 sites for Trenella bifrons, 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

2 references

Each of the 8 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content0

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

No 3D scan of Trenella bifrons 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 itTrenella through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Parkhaev 2001