Diapsida

Diapsids are a clade of sauropsids, distinguished from other reptiles by the presence of two holes, known as temporal fenestrae, in each side of their skulls. The earliest traditionally identified diapsids, the araeoscelidians, appeared about three hundred million years ago during the late Carboniferous period. All diapsids other than the most primitive ones in the clade Araeoscelidia are often placed into the clade Neodiapsida, which appeared during the following Permian. The diapsids are extremely diverse, and in a cladistic sense, include birds and all modern reptile groups, including turtles, which were historically thought to lie outside the group. Recent studies have questioned the relationship of Araeoscelidia to Neodiapsida, with cladistic analyses suggesting the diapsid condition of araeoscelidians was evolved independently of neodiapsids.

Diapsida

Leigh Bedford · CC BY 2.0 · 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
Also called
diapsidPBDB
Sits inside
RomeriidaPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB

Time the record covers

At least 283 million years on record.

The record covers at least 283.3 Mya to 11.7 ka. No occurrence read is dated outside 290.1 Mya to 0 Mya.

Permian — about 3 of 12000 occurrencesPermianEarly Triassic — about 11 of 12000 occurrencesMiddle Triassic — about 61 of 12000 occurrencesLate Triassic — about 502 of 12000 occurrencesLate TriassicEarly Jurassic — about 522 of 12000 occurrencesEarly JurassicMiddle Jurassic — about 300 of 12000 occurrencesLate Jurassic — about 1128 of 12000 occurrencesEarly Cretaceous — about 1548 of 12000 occurrencesEarly CretaceousLate Cretaceous — about 5040 of 12000 occurrencesLate CretaceousPaleocene — about 163 of 12000 occurrencesEocene — about 679 of 12000 occurrencesOligocene — about 65 of 12000 occurrencesMiocene — about 663 of 12000 occurrencesPliocene — about 356 of 12000 occurrencesPleistocene — about 891 of 12000 occurrences296–286 Mya — about 0.6 occurrences286–276 Mya — about 1 occurrence276–266 Mya — about 0.2 occurrences266–256 Mya — about 0.3 occurrences256–247 Mya — about 15 occurrences247–237 Mya — about 61 occurrences237–227 Mya — about 96 occurrences227–217 Mya — about 140 occurrences217–207 Mya — about 157 occurrences207–197 Mya — about 360 occurrences197–187 Mya — about 191 occurrences187–178 Mya — about 63 occurrences178–168 Mya — about 77 occurrences168–158 Mya — about 279 occurrences158–148 Mya — about 597 occurrences148–138 Mya — about 580 occurrences138–128 Mya — about 168 occurrences128–118 Mya — about 468 occurrences118–108 Mya — about 507 occurrences108–99 Mya — about 404 occurrences99–89 Mya — about 445 occurrences89–79 Mya — about 1150 occurrences79–69 Mya — about 2357 occurrences69–59 Mya — about 1069 occurrences59–49 Mya — about 404 occurrences49–39 Mya — about 225 occurrences39–30 Mya — about 155 occurrences30–20 Mya — about 86 occurrences20–9.9 Mya — about 409 occurrences9.9–0 Mya — about 1533 occurrences283.3 Mya11.7 ka296 Mya0 Mya

12,000+ occurrences of Diapsida on record. 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

12,000 occurrences read

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. The read hit its cap, so every figure above is a floor and the shares are of the occurrences read. More on what this infers.

Found in

at least 979 formations

  • Hell Creek Formation · Montana GroupMontana, South Dakota, North Dakota · US · 72.2–66 Mya909
  • Morrison FormationColorado, Wyoming, Utah · US · 157.9–143.1 Mya655
  • Dinosaur Park Formation · Belly River GroupAlberta · CA · 83.6–72.2 Mya463
  • Lance Formation · Montana GroupWyoming, South Dakota, Utah · US · 72.2–66 Mya293
  • Fruitland/Kirtland FormationNew Mexico · US · 83.6–72.2 Mya290
  • Oldman Formation · Belly River GroupAlberta · CA · 83.6–72.2 Mya278
Hell Creek — 47.64°N, 106.57°WHell Creek — 47.70°N, 106.23°WHell Creek — 47.80°N, 106.10°WHell Creek — 47.68°N, 106.43°WHell Creek — 45.14°N, 102.50°WHell Creek — 46.47°N, 104.02°WHell Creek — 47.54°N, 107.08°WHell Creek — 45.95°N, 103.96°WHell Creek — 46.10°N, 103.30°WHell Creek — 45.98°N, 103.75°WHell Creek — 46.15°N, 103.81°WHell Creek — 46.18°N, 103.84°WHell Creek — 46.30°N, 103.98°WHell Creek — 46.41°N, 103.94°WHell Creek — 46.38°N, 103.96°WHell Creek — 46.45°N, 103.02°WHell Creek — 46.33°N, 103.90°WHell Creek — 45.94°N, 103.95°WHell Creek — 47.57°N, 107.10°WHell Creek — 47.52°N, 106.40°WHell Creek — 45.55°N, 105.11°WHell Creek — 47.60°N, 107.00°WHell Creek — 45.53°N, 101.63°WHell Creek — 47.88°N, 106.20°WHell Creek — 45.76°N, 104.95°WHell Creek — 47.62°N, 107.32°WHell Creek — 47.57°N, 106.31°WHell Creek — 48.06°N, 105.40°WHell Creek — 47.53°N, 106.92°WHell Creek — 45.85°N, 104.83°WHell Creek — 47.96°N, 106.46°WHell Creek — 47.84°N, 106.16°WHell Creek — 47.52°N, 106.98°WHell Creek — 47.65°N, 106.65°WHell Creek — 47.60°N, 106.38°WHell Creek — 47.55°N, 107.25°WHell Creek — 47.52°N, 107.18°WHell Creek — 47.07°N, 106.92°WHell Creek — 47.60°N, 107.23°WHell Creek — 47.73°N, 106.50°WHell Creek — 47.63°N, 106.20°WHell Creek — 47.64°N, 106.70°WHell Creek — 47.67°N, 106.27°WHell Creek — 45.46°N, 103.84°WHell Creek — 46.90°N, 101.50°WHell Creek — 45.50°N, 104.16°WHell Creek — 47.81°N, 106.28°WHell Creek — 47.68°N, 105.98°WHell Creek — 47.57°N, 106.76°WHell Creek — 46.09°N, 100.63°WHell Creek — 47.10°N, 104.66°WHell Creek — 45.87°N, 103.79°WHell Creek — 45.65°N, 103.62°WMorrison — 39.07°N, 108.70°WMorrison — 41.89°N, 106.04°WMorrison — 42.04°N, 106.39°WMorrison — 39.65°N, 105.19°WMorrison — 42.15°N, 105.92°WMorrison — 42.02°N, 106.05°WMorrison — 43.38°N, 108.12°WMorrison — 43.63°N, 108.20°WMorrison — 39.15°N, 108.77°WMorrison — 40.42°N, 109.21°WMorrison — 35.20°N, 107.13°WMorrison — 40.44°N, 109.30°WMorrison — 38.12°N, 109.32°WMorrison — 38.54°N, 105.22°WMorrison — 38.81°N, 108.39°WMorrison — 34.94°N, 107.13°WMorrison — 43.43°N, 103.69°WMorrison — 45.25°N, 108.75°WMorrison — 36.21°N, 103.63°WMorrison — 35.32°N, 106.94°WMorrison — 35.56°N, 106.77°WMorrison — 35.60°N, 103.74°WMorrison — 38.45°N, 107.40°WMorrison — 41.98°N, 106.14°WMorrison — 41.88°N, 106.08°WMorrison — 41.88°N, 105.89°WMorrison — 39.24°N, 109.00°WMorrison — 38.58°N, 108.40°WMorrison — 44.54°N, 107.78°WMorrison — 44.65°N, 107.82°WMorrison — 41.97°N, 106.29°WMorrison — 38.73°N, 111.27°WMorrison — 38.85°N, 108.48°WMorrison — 38.55°N, 105.24°WMorrison — 42.55°N, 106.69°WMorrison — 43.65°N, 106.78°WMorrison — 36.90°N, 102.83°WMorrison — 40.53°N, 109.39°WMorrison — 36.93°N, 102.97°WMorrison — 39.17°N, 109.25°WMorrison — 38.54°N, 106.81°WMorrison — 38.64°N, 108.19°WMorrison — 45.54°N, 110.62°WMorrison — 44.47°N, 103.31°WMorrison — 39.01°N, 110.37°WMorrison — 44.53°N, 103.83°WMorrison — 44.18°N, 103.34°WMorrison — 43.41°N, 103.41°WMorrison — 44.46°N, 104.73°WMorrison — 44.25°N, 104.41°WMorrison — 39.32°N, 110.69°WMorrison — 45.45°N, 108.10°WMorrison — 35.32°N, 106.31°WMorrison — 35.58°N, 106.94°WMorrison — 40.09°N, 105.94°WMorrison — 37.53°N, 103.68°WMorrison — 37.78°N, 103.46°WMorrison — 38.81°N, 108.32°WMorrison — 40.47°N, 109.18°WMorrison — 38.32°N, 108.83°WDinosaur Park — 50.74°N, 111.53°WDinosaur Park — 50.75°N, 111.46°WDinosaur Park — 50.72°N, 111.56°WDinosaur Park — 50.79°N, 111.60°WDinosaur Park — 50.81°N, 111.32°WDinosaur Park — 50.75°N, 111.40°WDinosaur Park — 49.95°N, 110.27°WDinosaur Park — 50.73°N, 111.30°WDinosaur Park — 49.12°N, 110.47°WDinosaur Park — 50.73°N, 111.80°WDinosaur Park — 50.13°N, 111.69°WDinosaur Park — 50.76°N, 110.02°WDinosaur Park — 50.41°N, 110.29°WDinosaur Park — 50.40°N, 111.10°WDinosaur Park — 49.14°N, 110.42°WDinosaur Park — 50.60°N, 111.62°WDinosaur Park — 50.75°N, 111.40°WDinosaur Park — 49.30°N, 110.60°WDinosaur Park — 50.57°N, 111.51°WDinosaur Park — 50.82°N, 111.86°WLance — 43.35°N, 104.48°WLance — 43.12°N, 104.64°WLance — 44.24°N, 109.02°WLance — 43.49°N, 104.46°WLance — 43.30°N, 104.37°WLance — 44.77°N, 100.70°WLance — 41.57°N, 108.67°WLance — 41.57°N, 108.65°WLance — 41.64°N, 107.65°WLance — 43.13°N, 104.49°WLance — 43.00°N, 104.50°WLance — 43.17°N, 104.57°WLance — 43.44°N, 104.41°WLance — 42.20°N, 104.46°WLance — 42.58°N, 105.39°WLance — 43.17°N, 104.91°WLance — 43.14°N, 104.91°WLance — 43.27°N, 104.59°WLance — 45.67°N, 101.48°WLance — 44.09°N, 109.18°WLance — 43.18°N, 104.53°WLance — 37.58°N, 111.83°WLance — 45.93°N, 103.92°WLance — 42.05°N, 106.84°WLance — 44.29°N, 108.84°WLance — 47.40°N, 108.27°WLance — 48.29°N, 105.84°WLance — 43.25°N, 104.65°WLance — 43.80°N, 104.62°WLance — 45.75°N, 101.20°WLance — 45.00°N, 103.18°WLance — 42.65°N, 105.24°WLance — 43.14°N, 104.71°WLance — 42.09°N, 106.88°WLance — 41.91°N, 104.20°WLance — 43.20°N, 104.66°WLance — 43.13°N, 104.07°WLance — 43.49°N, 104.61°WLance — 45.04°N, 108.80°WLance — 42.97°N, 105.53°WFruitland/Kirtland — 36.29°N, 108.10°WFruitland/Kirtland — 36.27°N, 108.23°WFruitland/Kirtland — 36.19°N, 108.09°WFruitland/Kirtland — 36.06°N, 107.96°WFruitland/Kirtland — 36.33°N, 108.05°WFruitland/Kirtland — 36.28°N, 108.26°WFruitland/Kirtland — 36.02°N, 107.64°WFruitland/Kirtland — 36.15°N, 107.83°WFruitland/Kirtland — 35.91°N, 106.54°WFruitland/Kirtland — 35.97°N, 107.50°WFruitland/Kirtland — 36.17°N, 107.96°WFruitland/Kirtland — 36.17°N, 107.94°WFruitland/Kirtland — 36.02°N, 107.80°WFruitland/Kirtland — 35.90°N, 107.46°WFruitland/Kirtland — 36.24°N, 108.19°WFruitland/Kirtland — 36.14°N, 108.11°WFruitland/Kirtland — 36.10°N, 107.85°WFruitland/Kirtland — 35.46°N, 108.66°WFruitland/Kirtland — 35.92°N, 107.39°WFruitland/Kirtland — 36.84°N, 107.77°WOldman — 49.08°N, 110.68°WOldman — 50.75°N, 111.49°WOldman — 50.73°N, 111.80°WOldman — 50.63°N, 111.62°WOldman — 49.10°N, 110.94°WOldman — 49.08°N, 110.84°WOldman — 49.16°N, 110.72°WOldman — 50.83°N, 111.32°WOldman — 49.20°N, 110.60°WOldman — 50.81°N, 111.63°WOldman — 50.90°N, 111.80°WOldman — 50.72°N, 111.48°WOldman — 50.69°N, 111.62°WOldman — 49.30°N, 110.60°WOldman — 49.28°N, 112.58°WOldman — 49.14°N, 112.58°WOldman — 49.28°N, 112.20°WOldman — 50.72°N, 111.40°WWillwood — 43.03°N, 108.38°WWillwood — 43.95°N, 107.57°WWillwood — 44.30°N, 109.00°WWillwood — 44.83°N, 109.09°WWillwood — 44.59°N, 108.86°WWillwood — 44.42°N, 108.69°WWillwood — 44.44°N, 108.63°WWillwood — 44.50°N, 108.67°WWillwood — 44.56°N, 108.70°WWillwood — 44.59°N, 108.62°WWillwood — 44.53°N, 108.43°WWillwood — 44.65°N, 108.54°WWillwood — 44.60°N, 108.32°WWillwood — 44.59°N, 108.41°WWillwood — 44.53°N, 108.32°WWillwood — 44.65°N, 108.72°WWillwood — 44.65°N, 108.54°WWillwood — 44.52°N, 108.57°WWillwood — 44.65°N, 108.90°WWillwood — 44.65°N, 108.83°WWillwood — 44.64°N, 108.76°WWillwood — 44.41°N, 108.79°WWillwood — 44.33°N, 108.77°WWillwood — 44.78°N, 108.97°WCloverly — 45.44°N, 108.14°WCloverly — 45.44°N, 108.16°WCloverly — 46.34°N, 109.69°WCloverly — 45.49°N, 108.52°WCloverly — 44.49°N, 107.86°WCloverly — 44.54°N, 108.01°WCloverly — 44.96°N, 108.30°WCloverly — 45.12°N, 108.71°WCloverly — 45.15°N, 108.73°WCloverly — 45.20°N, 108.81°WCloverly — 45.36°N, 108.75°WCloverly — 43.73°N, 108.33°WCloverly — 43.22°N, 107.57°WCloverly — 43.19°N, 107.69°WCloverly — 45.34°N, 108.81°WCloverly — 44.69°N, 108.24°WCloverly — 45.45°N, 108.10°WCloverly — 45.38°N, 108.26°WCloverly — 45.41°N, 108.04°WCloverly — 46.27°N, 109.89°WCloverly — 45.26°N, 108.41°WPortland — 41.57°N, 72.63°WPortland — 42.26°N, 72.57°WPortland — 41.81°N, 72.55°WPortland — 42.10°N, 72.59°WPortland — 41.90°N, 72.57°WPortland — 42.59°N, 72.60°WPortland — 42.61°N, 72.51°WPortland — 42.52°N, 72.55°WPortland — 41.73°N, 72.66°WPortland — 41.69°N, 72.64°WPortland — 42.17°N, 72.67°WPortland — 42.16°N, 72.58°WPortland — 41.55°N, 72.69°WTendaguru — 9.71°S, 39.23°ETendaguru — 9.69°S, 39.25°ETendaguru — 9.79°S, 39.12°ETendaguru — 9.80°S, 39.31°EKoobi Fora — 3.90°N, 36.24°EKoobi Fora — 3.98°N, 36.32°EKoobi Fora — 4.31°N, 36.27°EKoobi Fora — 4.24°N, 36.26°EKoobi Fora — 4.29°N, 36.23°EKoobi Fora — 3.77°N, 36.44°EKoobi Fora — 3.78°N, 36.33°EKoobi Fora — 3.59°N, 36.24°EKoobi Fora — 3.87°N, 36.37°EKoobi Fora — 3.94°N, 36.25°EKoobi Fora — 4.18°N, 36.42°EKoobi Fora — 4.08°N, 36.35°EKoobi Fora — 4.07°N, 36.37°EJudith River — 46.47°N, 109.30°WJudith River — 46.46°N, 109.41°WJudith River — 48.95°N, 110.62°WJudith River — 47.77°N, 108.95°WJudith River — 47.90°N, 109.00°WJudith River — 47.74°N, 109.62°WJudith River — 47.81°N, 109.59°WJudith River — 48.92°N, 110.58°WJudith River — 47.78°N, 109.38°WJudith River — 48.97°N, 110.93°WJudith River — 48.98°N, 110.45°WJudith River — 46.10°N, 109.10°WJudith River — 46.40°N, 109.66°WJudith River — 46.42°N, 109.27°WJudith River — 46.44°N, 109.83°WJudith River — 46.23°N, 108.98°WChinle — 34.44°N, 109.46°WChinle — 36.32°N, 106.47°WChinle — 35.05°N, 109.83°WChinle — 35.84°N, 111.25°WChinle — 35.09°N, 109.79°WChinle — 34.94°N, 109.77°WChinle — 37.80°N, 110.33°WChinle — 36.21°N, 106.34°WChinle — 34.53°N, 109.32°WChinle — 35.12°N, 110.55°WChinle — 36.31°N, 106.45°WChinle — 36.34°N, 106.87°WChinle — 38.65°N, 108.91°WChinle — 40.58°N, 109.42°WChinle — 38.00°N, 111.13°WChinle — 34.83°N, 109.82°WBissekty — 42.12°N, 62.66°EBissekty — 40.70°N, 72.60°EBissekty — 42.54°N, 63.30°EBissekty — 42.02°N, 63.30°EBissekty — 42.60°N, 63.47°EBissekty — 41.68°N, 63.82°ETwo Medicine — 47.81°N, 112.18°WTwo Medicine — 47.82°N, 112.66°WTwo Medicine — 48.63°N, 113.75°WTwo Medicine — 48.48°N, 112.70°WTwo Medicine — 48.91°N, 112.64°WTwo Medicine — 48.97°N, 112.65°WTwo Medicine — 48.65°N, 112.97°WTwo Medicine — 47.77°N, 112.29°WTwo Medicine — 48.48°N, 112.58°WTwo Medicine — 48.46°N, 112.47°WTwo Medicine — 47.63°N, 112.58°WGlen Rose Limestone — 32.37°N, 97.69°WGlen Rose Limestone — 32.23°N, 98.23°WGlen Rose Limestone — 31.85°N, 98.62°WGlen Rose Limestone — 30.10°N, 98.42°WGlen Rose Limestone — 29.44°N, 100.12°WGlen Rose Limestone — 30.50°N, 99.40°WGlen Rose Limestone — 29.10°N, 99.44°WGlen Rose Limestone — 29.60°N, 99.12°WGlen Rose Limestone — 29.63°N, 99.26°WGlen Rose Limestone — 29.63°N, 99.42°WGlen Rose Limestone — 29.72°N, 99.00°WGlen Rose Limestone — 30.07°N, 99.33°WGlen Rose Limestone — 30.00°N, 99.11°WGlen Rose Limestone — 30.30°N, 99.05°WGlen Rose Limestone — 29.84°N, 98.22°WGlen Rose Limestone — 30.10°N, 98.50°WGlen Rose Limestone — 30.30°N, 98.30°WGlen Rose Limestone — 30.20°N, 97.98°WGlen Rose Limestone — 30.35°N, 97.79°WGlen Rose Limestone — 30.50°N, 97.91°WGlen Rose Limestone — 30.65°N, 97.67°WGlen Rose Limestone — 30.70°N, 98.09°WGlen Rose Limestone — 30.91°N, 98.03°WGlen Rose Limestone — 31.19°N, 98.13°WGlen Rose Limestone — 31.45°N, 98.25°WGlen Rose Limestone — 31.59°N, 98.13°WGlen Rose Limestone — 31.63°N, 98.21°WGlen Rose Limestone — 31.69°N, 98.38°WGlen Rose Limestone — 31.88°N, 97.63°WGlen Rose Limestone — 32.23°N, 97.76°WGlen Rose Limestone — 32.25°N, 97.81°WGlen Rose Limestone — 32.25°N, 97.72°WGlen Rose Limestone — 29.82°N, 98.77°WGlen Rose Limestone — 29.49°N, 99.21°WFruitland — 36.06°N, 107.97°WFruitland — 36.29°N, 108.23°WFruitland — 36.49°N, 108.49°WFruitland — 36.15°N, 107.98°WFruitland — 36.26°N, 108.26°WFruitland — 36.18°N, 108.21°WFruitland — 36.25°N, 108.06°WFruitland — 35.95°N, 108.00°WFruitland — 36.21°N, 105.64°WFruitland — 36.21°N, 108.08°WFruitland — 37.86°N, 110.10°WFruitland — 36.00°N, 107.00°WFruitland — 36.99°N, 108.17°WKirtland — 36.31°N, 108.08°WKirtland — 36.27°N, 108.17°WKirtland — 36.19°N, 107.89°WKirtland — 36.31°N, 108.05°WKirtland — 36.10°N, 108.09°WKirtland — 36.50°N, 108.08°WKirtland — 37.82°N, 110.35°WKirtland — 36.37°N, 108.26°WKirtland — 36.41°N, 108.35°WKirtland — 36.49°N, 108.57°WKirtland — 36.29°N, 108.55°WKirtland — 36.36°N, 108.57°WKirtland — 36.17°N, 107.80°WKirtland — 36.14°N, 107.80°WKirtland — 36.39°N, 108.07°WKirtland — 36.97°N, 108.17°WJindong — 34.91°N, 128.15°EJindong — 34.90°N, 128.15°EJindong — 34.99°N, 128.45°EJindong — 34.99°N, 128.40°EJindong — 35.07°N, 128.42°EJindong — 35.07°N, 128.28°EJindong — 34.97°N, 128.32°ECedar Mountain — 38.80°N, 111.17°WCedar Mountain — 38.83°N, 109.57°WCedar Mountain — 38.72°N, 109.69°WCedar Mountain — 38.78°N, 109.71°WCedar Mountain — 38.94°N, 111.07°WCedar Mountain — 39.14°N, 110.90°WCedar Mountain — 39.21°N, 111.02°WCedar Mountain — 39.16°N, 110.86°WCedar Mountain — 39.05°N, 111.04°WCedar Mountain — 38.81°N, 109.76°WCedar Mountain — 32.83°N, 109.57°WCedar Mountain — 38.91°N, 110.10°WCedar Mountain — 38.83°N, 109.47°WCedar Mountain — 39.00°N, 111.00°WCedar Mountain — 38.66°N, 111.24°WCedar Mountain — 39.18°N, 110.11°WSao Khua — 16.70°N, 102.25°ESao Khua — 16.68°N, 103.57°ESao Khua — 16.65°N, 102.25°ESao Khua — 16.13°N, 102.58°ESao Khua — 16.54°N, 104.14°ESao Khua — 16.43°N, 104.09°ESao Khua — 16.43°N, 104.00°ESao Khua — 17.00°N, 104.25°ESao Khua — 17.41°N, 102.79°ESao Khua — 17.25°N, 102.67°ESao Khua — 16.42°N, 104.67°ENorth Horn — 39.27°N, 111.25°WNorth Horn — 39.18°N, 111.27°WNorth Horn — 39.20°N, 111.24°WNorth Horn — 39.29°N, 111.11°WNorth Horn — 39.10°N, 111.80°WNorth Horn — 39.00°N, 111.00°WVogel River Series — 3.20°S, 35.22°EVogel River Series — 3.01°S, 35.20°EVogel River Series — 3.25°S, 35.20°EVogel River Series — 3.23°S, 36.19°EVogel River Series — 3.13°S, 35.13°EFort Union — 44.91°N, 108.93°WFort Union — 44.72°N, 108.62°WFort Union — 44.68°N, 108.34°WFort Union — 44.68°N, 108.35°WFort Union — 44.67°N, 108.45°WFort Union — 43.85°N, 108.35°WFort Union — 44.30°N, 109.00°W

Loading coastlines…

The named rock units Diapsida has been recovered from, largest first. Drawn where the rock is now, not where it formed. The read hit its cap, so each count is a floor. 955 further formations hold fewer occurrences each and are not listed. 1,568 occurrences have no formation on record, which is common for older literature.

Found in the same rock

2,464 taxa

The Paleobiology Database records at least 788 sites for Diapsida, 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

at least 3,086 references

Each of the 12,000 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. That read hit its cap, so each count is a floor. 3,074 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 Diapsida

Credit
Leigh Bedford
Licence
CC BY 2.0
Commercial use
the licence allows it

No 3D scan of Diapsida 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.

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What may have been alongside itRomeriida through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Osborn 1903)