Diplorrhina

Diplorrhina Hawle and Corda (1847) is a genus of trilobite belonging to Order Agnostida. It lived during the early Middle Cambrian in what are now the Czech Republic and the North Siberian plateau. as in members of the family Peronopsidae it lacks a preglabellar furrow. Both cephalon and pygidium lack spines. It is difficult to distinguish Diplorrhina from many other peronopsids.

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

On record

Recorded, not inferred
Sits inside
MetagnostidaePBDB
Diet
detritivorePBDB, for Agnostida
Life habit
epifaunalPBDB, for Agnostida
Motility
slow-movingPBDB, for Agnostida
Vision
blindPBDB, for Metagnostidae

Time the record covers

At least 5.8 million years on record.

The record covers at least 505.3 Mya to 499.5 Mya. No occurrence read is dated outside 509.7 Mya to 497 Mya.

Cambrian — about 36 of 36 occurrencesCambrian510–509 Mya — about 0.1 occurrences509–509 Mya — about 0.1 occurrences509–508 Mya — about 0.1 occurrences508–508 Mya — about 0.3 occurrences508–507 Mya — about 0.4 occurrences507–507 Mya — about 0.4 occurrences507–507 Mya — about 0.4 occurrences507–506 Mya — about 0.6 occurrences506–506 Mya — about 0.6 occurrences506–505 Mya — about 0.7 occurrences505–505 Mya — about 1 occurrence505–504 Mya — about 1 occurrence504–504 Mya — about 1 occurrence504–503 Mya — about 1 occurrence503–503 Mya — about 2 occurrences503–502 Mya — about 4 occurrences502–502 Mya — about 4 occurrences502–502 Mya — about 4 occurrences502–501 Mya — about 4 occurrences501–501 Mya — about 4 occurrences501–500 Mya — about 1 occurrence500–500 Mya — about 0.5 occurrences500–499 Mya — about 0.5 occurrences499–499 Mya — about 0.5 occurrences499–498 Mya — about 0.5 occurrences498–498 Mya — about 0.5 occurrences498–497 Mya — about 0.5 occurrences497–497 Mya — about 0.5 occurrences505.3 Mya499.5 Mya510.2 Mya496.5 Mya

36 occurrences of Diplorrhina 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

36 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

13 formations

V-Creek Limestone — 19.52°S, 138.79°EV-Creek Limestone — 19.56°S, 138.81°EV-Creek Limestone — 20.25°S, 138.63°EV-Creek Limestone — 19.67°S, 138.76°EV-Creek Limestone — 19.79°S, 138.65°EV-Creek Limestone — 20.23°S, 138.29°EV-Creek Limestone — 20.19°S, 138.45°EV-Creek Limestone — 19.68°S, 138.69°EAktas — 43.53°N, 69.95°EZhumabai — 43.53°N, 69.95°ECurrant Bush — 19.54°S, 138.86°ECurrant Bush — 19.45°S, 138.62°EJince — 49.78°N, 13.97°EMarjum — 39.00°N, 113.00°WQuita Creek — 21.93°S, 139.13°EWheeler Shale — 39.54°N, 112.92°WMenevia — 51.87°N, 5.22°WFerrals — 43.40°N, 2.63°EBuchava — 49.96°N, 13.74°EKap Stanton — 80.25°N, 62.50°WInca — 20.03°S, 138.91°E

Loading coastlines…

The named rock units Diplorrhina 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.

Diplorrhina and its relatives

Cambrian

Where Diplorrhina and its relatives were recorded in the Cambrian.

Found in the same rock

178 taxa

The Paleobiology Database records 28 sites for Diplorrhina, 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

11 references

Each of the 36 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 Diplorrhina 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 Diplorrhina, or no answer at all. This entry cannot say which.

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itMetagnostidae through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hawle and Corda 1847