Atrypa

Atrypa is a genus of brachiopod with round to short egg-shaped shells covered with many fine radial ridges. Growth lines form perpendicular to the costae and are spaced approximately 2 to 3 times further apart than the costae.. The pedunculate valve is slightly convex, but oftentimes levels out or becomes slightly concave toward the anterior margin. The brachial valve is highly convex. Neither valve contains an interarea. Atrypa had a large geographic range and occurred from the late Lower Silurian (Telychian) to the early Upper Devonian (Frasnian). Other sources expand the range from the Late Ordovician to Carboniferous, approximately from 449 to 336 Ma. A proposed new species, A. harrisi, was found in the trilobite-rich Floresta Formation in Boyacá, Colombia.

Atrypa

Dwergenpaartje · CC BY-SA 3.0 · 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
AtrypinaePBDB
Diet
suspension feederPBDB, for Atrypida
Life habit
epifaunalPBDB, for Atrypida
Motility
stationaryPBDB, for Atrypida
Vision
blindPBDB, for Rhynchonellata
Environment
marinePBDB, for Lophophorata

Time the record covers

At least 110 million years on record.

The record covers at least 450.2 Mya to 339.9 Mya. No occurrence read is dated outside 471.3 Mya to 298.9 Mya.

Ordovician — about 14 of 1479 occurrencesOrdovicianSilurian — about 686 of 1479 occurrencesSilurianDevonian — about 776 of 1479 occurrencesDevonianCarboniferous — about 3 of 1479 occurrencesCarboniferousPermian — about 0 of 1479 occurrences475–469 Mya — about 0.1 occurrences469–463 Mya — about 0.2 occurrences463–457 Mya — about 0.5 occurrences457–451 Mya — about 1 occurrence451–445 Mya — about 9 occurrences445–439 Mya — about 53 occurrences439–433 Mya — about 129 occurrences433–427 Mya — about 290 occurrences427–421 Mya — about 193 occurrences421–415 Mya — about 150 occurrences415–409 Mya — about 111 occurrences409–403 Mya — about 46 occurrences403–397 Mya — about 46 occurrences397–391 Mya — about 87 occurrences391–385 Mya — about 186 occurrences385–379 Mya — about 118 occurrences379–373 Mya — about 41 occurrences373–367 Mya — about 10 occurrences367–361 Mya — about 3 occurrences361–355 Mya — about 2 occurrences355–349 Mya — about 0.6 occurrences349–343 Mya — about 0.3 occurrences343–337 Mya — about 0.8 occurrences337–331 Mya — about 0.4 occurrences331–325 Mya — about 0.1 occurrences325–319 Mya — about 0.1 occurrences319–313 Mya — about 0.1 occurrences313–307 Mya — about 0.1 occurrences307–301 Mya — about 0.1 occurrences301–295 Mya — about 0.0 occurrences450.2 Mya339.9 Mya475 Mya295 Mya

1,479 occurrences of Atrypa 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

1,479 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

386 formations

Dawson Bay — 51.02°N, 98.68°WDawson Bay — 52.89°N, 101.06°WDawson Bay — 51.60°N, 99.82°WDawson Bay — 51.65°N, 99.81°WDawson Bay — 53.00°N, 101.00°WDawson Bay — 52.60°N, 104.95°WDawson Bay — 52.81°N, 100.87°WDawson Bay — 52.80°N, 100.96°WDawson Bay — 52.73°N, 100.83°WDawson Bay — 52.88°N, 101.05°WDawson Bay — 52.83°N, 100.40°WDawson Bay — 52.80°N, 100.25°WDawson Bay — 52.97°N, 100.57°WDawson Bay — 52.75°N, 100.44°WDawson Bay — 52.46°N, 100.69°WDawson Bay — 52.09°N, 99.85°WOnondaga — 42.95°N, 76.17°WOnondaga — 42.92°N, 78.25°WOnondaga — 42.78°N, 74.33°WOnondaga — 42.70°N, 74.92°WOnondaga — 42.97°N, 76.14°WOnondaga — 42.18°N, 73.95°WOnondaga — 42.08°N, 73.97°WOnondaga — 42.26°N, 73.90°WOnondaga — 41.93°N, 74.03°WOnondaga — 42.59°N, 74.93°WOnondaga — 42.65°N, 74.04°WOnondaga — 42.55°N, 73.94°WOnondaga — 42.90°N, 76.02°WOnondaga — 42.65°N, 74.08°WOnondaga — 42.00°N, 74.00°WOnondaga — 43.00°N, 75.00°WOnondaga — 43.00°N, 76.00°WHenryhouse — 35.08°N, 98.24°WHenryhouse — 35.00°N, 97.00°WHenryhouse — 34.73°N, 96.63°WHenryhouse — 34.37°N, 97.00°WHenryhouse — 34.60°N, 97.03°WHenryhouse — 34.62°N, 96.63°WHenryhouse — 34.66°N, 96.68°WHenryhouse — 34.34°N, 97.33°WHenryhouse — 34.77°N, 96.67°WHenryhouse — 34.11°N, 97.20°WHenryhouse — 34.68°N, 96.76°WIrondequoit — 43.12°N, 79.07°WIrondequoit — 43.25°N, 76.72°WIrondequoit — 43.16°N, 79.05°WIrondequoit — 43.18°N, 78.72°WIrondequoit — 43.20°N, 77.62°WIrondequoit — 43.23°N, 77.21°WIrondequoit — 43.23°N, 76.98°WIrondequoit — 43.21°N, 76.88°WIrondequoit — 43.24°N, 76.80°WBird Fiord — 76.30°N, 99.30°WBird Fiord — 77.18°N, 86.47°WBird Fiord — 76.63°N, 88.46°WBird Fiord — 76.62°N, 88.40°WBird Fiord — 77.63°N, 83.49°WBird Fiord — 77.61°N, 83.57°WBird Fiord — 77.49°N, 83.91°WRochester — 43.16°N, 79.05°WRochester — 43.18°N, 78.72°WRochester — 43.16°N, 77.68°WRochester — 43.19°N, 77.56°WRochester — 43.23°N, 77.21°WRochester — 43.22°N, 77.02°WRochester — 43.19°N, 76.91°WRochester — 43.22°N, 76.81°WRochester — 43.25°N, 76.64°WTriangle — 42.35°N, 75.89°WTriangle — 42.33°N, 75.85°WTriangle — 42.19°N, 75.87°WTriangle — 42.31°N, 75.60°WTriangle — 42.46°N, 75.47°WTriangle — 42.29°N, 75.46°WTriangle — 42.28°N, 76.02°WTriangle — 42.29°N, 75.43°WTriangle — 42.40°N, 75.31°WTriangle — 42.33°N, 75.23°WTriangle — 42.42°N, 75.86°WTriangle — 42.40°N, 75.77°WTriangle — 42.49°N, 76.03°WTriangle — 42.44°N, 76.03°WRoberts Mountain — 39.84°N, 116.35°WRoberts Mountain — 39.94°N, 116.32°WScotch Grove — 42.00°N, 91.00°WScotch Grove — 40.00°N, 97.00°WScotch Grove — 41.92°N, 90.92°WScotch Grove — 41.90°N, 90.60°WScotch Grove — 42.15°N, 90.68°WScotch Grove — 42.00°N, 92.00°WScotch Grove — 42.00°N, 90.50°WScotch Grove — 42.12°N, 91.13°WScotch Grove — 42.48°N, 90.87°WScotch Grove — 41.85°N, 90.18°WScotch Grove — 42.10°N, 91.28°WMcColley Canyon — 38.87°N, 117.92°WMcColley Canyon — 39.60°N, 116.27°WMcColley Canyon — 39.42°N, 116.03°WMcColley Canyon — 40.13°N, 116.10°WMcColley Canyon — 39.98°N, 116.27°WMcColley Canyon — 40.15°N, 116.10°WMcColley Canyon — 39.87°N, 116.31°WMcColley Canyon — 39.67°N, 116.39°WCanon de Caballeros — 23.77°N, 99.27°WSouris River — 51.75°N, 100.53°WSouris River — 53.00°N, 101.00°WSouris River — 51.65°N, 99.97°WSouris River — 52.86°N, 100.94°WSouris River — 52.82°N, 100.93°WMuch Wenlock — 53.00°N, 2.00°WMuch Wenlock — 52.03°N, 2.40°WMuch Wenlock — 52.00°N, 2.00°WMuch Wenlock — 52.02°N, 2.57°WMuch Wenlock — 51.72°N, 2.90°WMuch Wenlock — 52.60°N, 2.55°WMuch Wenlock — 52.50°N, 2.08°WRochester Shale — 43.15°N, 77.62°WRochester Shale — 43.15°N, 77.06°WRochester Shale — 43.10°N, 79.06°WRochester Shale — 43.20°N, 77.53°WRochester Shale — 43.17°N, 78.68°WRochester Shale — 43.15°N, 77.72°WRochester Shale — 43.22°N, 76.82°WRochester Shale — 39.65°N, 78.76°WCoeymans — 41.29°N, 74.14°WCoeymans — 42.80°N, 74.75°WCoeymans — 42.97°N, 75.15°WCoeymans — 42.67°N, 74.32°WCoeymans — 42.86°N, 74.80°WCoeymans — 42.91°N, 74.87°WJemelle — 50.05°N, 4.48°EJemelle — 50.10°N, 5.02°ERoberts Mountains — 39.95°N, 116.31°WRoberts Mountains — 39.90°N, 116.36°WMount Ida — 36.77°S, 144.77°EMount Ida — 37.00°S, 144.00°ECoopers Creek Limestone — 38.15°S, 146.47°ERacine — 43.04°N, 87.91°WRacine — 42.73°N, 87.78°WRacine — 42.88°N, 88.04°WRacine — 43.01°N, 88.38°WRacine — 42.00°N, 88.00°WRacine — 41.85°N, 87.65°WKopanina — 50.08°N, 14.47°EKopanina — 49.95°N, 14.22°EKopanina — 50.03°N, 14.32°EKopanina — 49.95°N, 12.93°EWaldron Shale — 35.00°N, 88.00°WWaldron Shale — 39.00°N, 86.00°WWaldron Shale — 39.45°N, 85.67°WSilica — 41.72°N, 83.72°WWinnipegosis — 52.96°N, 100.90°WWinnipegosis — 52.92°N, 100.97°WWinnipegosis — 52.86°N, 100.81°WWinnipegosis — 52.87°N, 100.68°WWinnipegosis — 52.83°N, 100.74°WWinnipegosis — 52.82°N, 100.84°WWinnipegosis — 52.79°N, 100.95°WWinnipegosis — 51.58°N, 99.54°W

Loading coastlines…

The named rock units Atrypa has been recovered from, largest first. Drawn where the rock is now, not where it formed. 362 further formations hold fewer occurrences each and are not listed. 243 occurrences have no formation on record, which is common for older literature.

Atrypa and its relatives

Devonian

Where Atrypa and its relatives were recorded in the Devonian.

Found in the same rock

1,295 taxa

The Paleobiology Database records 1,284 sites for Atrypa, 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

294 references

Each of the 1,479 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. 282 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 content2

Picture of Atrypa

Credit
Dwergenpaartje
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC0 Public Domain
Commercial use
the licence allows it

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 itAtrypinae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Dalman 1828