Diplostraca

Branchiopoda is a class of crustaceans. It comprises fairy shrimp, clam shrimp, Diplostraca, Notostraca, the Devonian Lepidocaris and possibly the Cambrian Rehbachiella. They are mostly small, freshwater animals that feed on plankton and detritus.

Diplostraca

Hans Hillewaert Rise0011 Franco Folini Public Library of Science · CC BY-SA 4.0 · via Wikipedia/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
CalmanostracaPBDB
Diet
suspension feeder, detritivorePBDB, for Branchiopoda
Life habit
nektobenthicPBDB, for Branchiopoda
Motility
slow-movingPBDB, for Branchiopoda
Vision
well-developedPBDB, for Branchiopoda
Environment
marine,brackish,freshwaterPBDB, for Branchiopoda

Time the record covers

At least 515 million years on record.

The record covers at least 516 Mya to 129 ka. No occurrence read is dated outside 521 Mya to 11.7 ka.

Cambrian — about 2 of 331 occurrencesCambrianOrdovician — about 0 of 331 occurrencesSilurian — about 0 of 331 occurrencesDevonian — about 8 of 331 occurrencesDevonianCarboniferous — about 61 of 331 occurrencesCarboniferousPermian — about 56 of 331 occurrencesPermianEarly Triassic — about 33 of 331 occurrencesMiddle Triassic — about 39 of 331 occurrencesLate Triassic — about 63 of 331 occurrencesEarly Jurassic — about 8 of 331 occurrencesMiddle Jurassic — about 3 of 331 occurrencesLate Jurassic — about 26 of 331 occurrencesEarly Cretaceous — about 19 of 331 occurrencesLate Cretaceous — about 3 of 331 occurrencesPaleocene — about 2 of 331 occurrencesEocene — about 1 of 331 occurrencesOligocene — about 2 of 331 occurrencesMiocene — about 2 of 331 occurrencesPliocene — about 0 of 331 occurrencesPleistocene — about 3 of 331 occurrences531–514 Mya — about 1 occurrence514–496 Mya — about 0.9 occurrences425–407 Mya — about 0.7 occurrences407–390 Mya — about 2 occurrences390–372 Mya — about 4 occurrences372–354 Mya — about 2 occurrences354–337 Mya — about 0.3 occurrences337–319 Mya — about 6 occurrences319–301 Mya — about 48 occurrences301–283 Mya — about 40 occurrences283–266 Mya — about 9 occurrences266–248 Mya — about 45 occurrences248–230 Mya — about 62 occurrences230–213 Mya — about 29 occurrences213–195 Mya — about 17 occurrences195–177 Mya — about 4 occurrences177–159 Mya — about 5 occurrences159–142 Mya — about 24 occurrences142–124 Mya — about 6 occurrences124–106 Mya — about 10 occurrences106–89 Mya — about 4 occurrences89–71 Mya — about 0.2 occurrences71–53 Mya — about 3 occurrences53–35 Mya — about 0.6 occurrences35–18 Mya — about 3 occurrences18–0 Mya — about 4 occurrences516 Mya129 ka531 Mya0 Mya

331 occurrences of Diplostraca on record, most of them in the Late Triassic. The Paleobiology Database records this as a living group. 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

331 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

110 formations

Grès à Voltzia — 48.91°N, 7.20°EGrès à Voltzia — 48.73°N, 7.17°EGrès à Voltzia — 48.82°N, 7.25°EGrès à Voltzia — 49.15°N, 6.86°EGrès à Voltzia — 48.69°N, 7.38°EGrès à Voltzia — 48.88°N, 7.28°EGrès à Voltzia — 48.78°N, 7.25°EGrès à Voltzia — 48.64°N, 7.44°EYekchan — 61.88°N, 145.45°EYekchan — 61.90°N, 144.93°EWellington — 36.35°N, 97.43°WWellington — 36.35°N, 97.30°WWellington — 37.96°N, 97.32°WWellington — 37.90°N, 97.35°WWellington — 38.13°N, 97.21°WWellington — 38.04°N, 97.21°WWellington — 37.87°N, 97.24°WWellington — 37.79°N, 97.28°WOttweiler Schichten — 49.52°N, 7.48°EOttweiler Schichten — 49.28°N, 6.79°EOttweiler Schichten — 49.43°N, 7.34°EOttweiler Schichten — 49.32°N, 6.91°EOttweiler Schichten — 49.24°N, 6.75°EOttweiler Schichten — 49.42°N, 7.24°EOttweiler Schichten — 49.35°N, 7.03°EOttweiler Schichten — 49.37°N, 7.11°EMorrison — 38.45°N, 107.40°WMorrison — 39.24°N, 109.00°WMorrison — 39.15°N, 108.77°WMorrison — 37.53°N, 103.68°WMorrison — 44.46°N, 104.73°WMorrison — 45.22°N, 108.83°WMorrison — 39.15°N, 108.77°WMorrison — 38.85°N, 108.46°WWild Cow — 34.95°N, 106.30°WDe Geerdalen — 77.62°N, 14.98°EDe Geerdalen — 78.00°N, 21.87°EDe Geerdalen — 78.10°N, 13.88°EHassberge — 50.00°N, 10.68°EHassberge — 49.91°N, 10.52°ELower Saarbrucker layer — 49.38°N, 7.25°ELower Saarbrucker layer — 49.24°N, 6.99°EIsheevo — 55.78°N, 48.93°EGrabfeld — 49.70°N, 10.43°EGrabfeld — 49.88°N, 10.43°EGrabfeld — 50.27°N, 10.42°ELockatong — 40.81°N, 74.02°WLockatong — 40.42°N, 75.06°WBrejo Santo — 7.25°S, 39.12°WBrejo Santo — 7.50°S, 39.00°WBrejo Santo — 7.17°S, 39.31°WStuttgart — 49.20°N, 9.30°EKayitou — 25.83°N, 104.38°EKayitou — 26.73°N, 104.44°EShar Teg — 44.12°N, 95.82°ETuckahoe — 37.52°N, 77.63°WTuckahoe — 37.60°N, 77.72°WVrchlabi — 50.57°N, 15.40°EVrchlabi — 50.62°N, 15.60°ETiaojishan — 41.32°N, 119.24°ETiaojishan — 40.87°N, 119.99°ETiaojishan — 40.92°N, 119.65°EElliot — 29.13°S, 27.33°EYixian — 41.16°N, 119.31°EYixian — 41.62°N, 120.90°EYixian — 41.63°N, 121.65°EPaluxy — 32.88°N, 97.50°WPaluxy — 33.50°N, 97.50°WPaluxy — 33.12°N, 97.57°WSanta Maria — 29.74°S, 53.79°WHeiligenwald — 49.56°N, 11.54°E

Loading coastlines…

The named rock units Diplostraca has been recovered from, largest first. Drawn where the rock is now, not where it formed. 86 further formations hold fewer occurrences each and are not listed. 37 occurrences have no formation on record, which is common for older literature.

Diplostraca and its relatives

Late Triassic

Where Diplostraca and its relatives were recorded in the Late Triassic.

Found in the same rock

1,617 taxa

The Paleobiology Database records 229 sites for Diplostraca, 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

133 references

Each of the 331 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. 121 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 Diplostraca

Credit
Hans Hillewaert Rise0011 Franco Folini Public Library of Science
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Diplostraca was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itCalmanostraca through timeFormations of the Late TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Gerstecker 1866)