Dacryoconarida

Dacryoconarida is an extinct subclass of free living animals from the Tentaculita class, which were common in the Devonian oceans. Dacryoconarids have a subspherical, drop- or tear-shaped embryonic chamber. The phylogenetic affinities of tentaculites are not fully resolved; they have often been placed among molluscs, but recent microstructural analyses place them among the Lophophorata. Their fossils are known from Devonian rocks of Australia, Asia, Europe, North Africa and North America.

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

On record

Recorded, not inferred
Sits inside
TentaculitaPBDB
Diet
suspension feederPBDB, for Tentaculita
Life habit
semi-infaunalPBDB, for Tentaculita
Motility
stationaryPBDB, for Tentaculita
Vision
blindPBDB, for Tentaculita

Time the record covers

At least 86 million years on record.

The record covers at least 445.5 Mya to 358.86 Mya. No occurrence read is dated outside 449.6 Mya to 351.9 Mya.

Ordovician — about 1 of 785 occurrencesOrdovicianSilurian — about 12 of 785 occurrencesSilurianDevonian — about 771 of 785 occurrencesDevonianCarboniferous — about 1 of 785 occurrencesCarboniferous452–448 Mya — about 0.3 occurrences448–445 Mya — about 0.7 occurrences445–441 Mya — about 0.6 occurrences441–438 Mya — about 1 occurrence438–435 Mya — about 1 occurrence435–431 Mya — about 0.8 occurrences431–428 Mya — about 1 occurrence428–424 Mya — about 2 occurrences424–421 Mya — about 3 occurrences421–418 Mya — about 7 occurrences418–414 Mya — about 10 occurrences414–411 Mya — about 149 occurrences411–408 Mya — about 65 occurrences408–404 Mya — about 50 occurrences404–401 Mya — about 50 occurrences401–397 Mya — about 63 occurrences397–394 Mya — about 72 occurrences394–391 Mya — about 94 occurrences391–387 Mya — about 100 occurrences387–384 Mya — about 57 occurrences384–380 Mya — about 30 occurrences380–377 Mya — about 6 occurrences377–374 Mya — about 8 occurrences374–370 Mya — about 7 occurrences370–367 Mya — about 2 occurrences367–363 Mya — about 0.8 occurrences363–360 Mya — about 0.8 occurrences360–357 Mya — about 0.6 occurrences357–353 Mya — about 0.5 occurrences353–350 Mya — about 0.2 occurrences445.5 Mya358.86 Mya452 Mya350 Mya

785 occurrences of Dacryoconarida on record, most of them in the Devonian. 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

785 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

162 formations

Daleje Shale — 50.04°N, 14.39°EDaleje Shale — 49.97°N, 14.17°EDaleje Shale — 49.99°N, 14.28°EDaleje Shale — 49.94°N, 14.19°EDaleje Shale — 49.94°N, 14.13°ETangxiang — 22.00°N, 108.00°ETangxiang — 22.52°N, 107.98°ESalmontrout Limestone — 65.00°N, 141.00°WZlichov Limestone — 49.50°N, 14.33°EZlichov Limestone — 49.99°N, 14.28°EZlichov Limestone — 49.96°N, 14.24°EZlichov Limestone — 50.03°N, 14.92°EZlichov Limestone — 50.05°N, 14.41°ESilica — 41.72°N, 83.72°WSilica — 42.13°N, 83.60°WSilica — 41.12°N, 84.85°WMagian — 39.37°N, 67.58°EProkop-Dvorce — 50.03°N, 14.31°EProkop-Dvorce — 49.94°N, 14.19°EProkop-Dvorce — 50.04°N, 14.41°EProkop-Dvorce — 49.96°N, 14.24°EProkop-Dvorce — 48.78°N, 14.35°EProkop-Dvorce — 49.95°N, 14.10°ETrebotov Limestone — 49.99°N, 14.28°ETrebotov Limestone — 50.04°N, 14.40°ETrebotov Limestone — 49.92°N, 14.07°EPraha — 49.42°N, 15.86°EPraha — 49.96°N, 14.19°EMarcellus — 42.85°N, 78.80°WMarcellus — 42.65°N, 74.02°WMarcellus — 41.22°N, 74.82°WMarcellus — 42.97°N, 76.14°WMarcellus — 42.99°N, 76.04°WMarcellus — 42.80°N, 74.88°WNizhnemagianskaya — 39.00°N, 69.00°ELiangquan — 31.00°N, 88.00°ELiangquan — 28.15°N, 85.98°ENa Quan — 22.68°N, 106.67°ENa Quan — 22.23°N, 106.18°ELudlowville — 42.76°N, 78.65°WLudlowville — 42.80°N, 78.85°WLudlowville — 42.85°N, 78.64°WLudlowville — 42.85°N, 78.37°WTangding — 22.00°N, 108.00°ETangding — 25.00°N, 107.00°EElm Point — 51.69°N, 98.93°WElm Point — 51.45°N, 98.79°WElm Point — 51.45°N, 98.78°WElm Point — 51.42°N, 98.74°WElm Point — 51.32°N, 98.35°WElm Point — 51.12°N, 98.37°WElm Point — 50.77°N, 98.23°WElm Point — 50.77°N, 98.26°WTurkparidinskaya — 39.00°N, 69.00°EToshem — 61.30°N, 60.13°EStinava-Chabicov — 50.00°N, 17.00°EStinava-Chabicov — 49.85°N, 17.52°EStinava-Chabicov — 49.00°N, 17.00°EMariposas — 41.13°N, 1.07°WUnion Springs — 42.80°N, 74.75°WUnion Springs — 42.86°N, 74.87°WChotec — 49.50°N, 14.33°EKacak Shales — 50.04°N, 14.40°EKacak Shales — 49.94°N, 14.19°EKacak Shales — 49.93°N, 14.12°EToc Tat — 22.68°N, 106.67°EToc Tat — 23.28°N, 105.38°E

Loading coastlines…

The named rock units Dacryoconarida has been recovered from, largest first. Drawn where the rock is now, not where it formed. 138 further formations hold fewer occurrences each and are not listed. 108 occurrences have no formation on record, which is common for older literature.

Dacryoconarida and its relatives

Devonian

Where Dacryoconarida and its relatives were recorded in the Devonian.

Found in the same rock

1,732 taxa

The Paleobiology Database records 424 sites for Dacryoconarida, and this reads 240 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

116 references

Each of the 785 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. 104 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 content0

No picture of Dacryoconarida 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 Dacryoconarida, 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 itTentaculita through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Fisher 1962)