Dryosauridae

Dryosauridae is an extinct family of herbivorous bipedal ornithopod dinosaurs, first proposed by Milner & Norman in 1984. They are known from Middle Jurassic to Early Cretaceous rocks of Africa, Europe, and North America, with their fossil record possibly extending to South America, Australia and Antarctica and to the Late Cretaceous if elasmarians are included in the group.

Dryosauridae

Oh-Berlin.com · 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
Sits inside
DryomorphaPBDB
Diet
herbivorePBDB, for Ornithopoda
Life habit
ground dwelling, gregariousPBDB, for Ornithischia
Motility
actively mobilePBDB, for Ornithischia
Environment
terrestrialPBDB, for Ornithischia

Time the record covers

At least 68 million years on record.

The record covers at least 152.21 Mya to 83.6 Mya. No occurrence read is dated outside 161.5 Mya to 66 Mya.

Middle Jurassic — about 0 of 61 occurrencesLate Jurassic — about 44 of 61 occurrencesLate JurassicEarly Cretaceous — about 16 of 61 occurrencesEarly CretaceousLate Cretaceous — about 1 of 61 occurrencesLate CretaceousPaleocene — about 0 of 61 occurrences163–160 Mya — about 0.1 occurrences160–157 Mya — about 0.2 occurrences157–153 Mya — about 6 occurrences153–150 Mya — about 15 occurrences150–147 Mya — about 13 occurrences147–144 Mya — about 9 occurrences144–140 Mya — about 0.9 occurrences140–137 Mya — about 0.1 occurrences137–134 Mya — about 2 occurrences134–130 Mya — about 2 occurrences130–127 Mya — about 1 occurrence127–124 Mya — about 4 occurrences124–120 Mya — about 4 occurrences120–117 Mya — about 1 occurrence117–114 Mya — about 1 occurrence114–110 Mya — about 0.4 occurrences110–107 Mya — about 0.0 occurrences84–81 Mya — about 0.2 occurrences81–77 Mya — about 0.2 occurrences77–74 Mya — about 0.2 occurrences74–71 Mya — about 0.2 occurrences71–67 Mya — about 0.2 occurrences67–64 Mya — about 0.1 occurrences152.21 Mya83.6 Mya163 Mya64 Mya

61 occurrences of Dryosauridae on record, most of them in the Late Jurassic. 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

61 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

19 formations

Morrison — 40.42°N, 109.21°WMorrison — 41.91°N, 105.96°WMorrison — 41.88°N, 106.08°WMorrison — 41.97°N, 106.29°WMorrison — 40.44°N, 109.30°WMorrison — 38.53°N, 105.22°WMorrison — 38.58°N, 108.40°WMorrison — 42.02°N, 106.05°WMorrison — 38.32°N, 108.83°WMorrison — 39.15°N, 108.77°WMorrison — 41.98°N, 106.14°WMorrison — 37.02°N, 109.56°WMorrison — 40.50°N, 109.17°WMorrison — 39.06°N, 108.74°WMorrison — 40.46°N, 108.39°WMorrison — 39.16°N, 108.81°WMorrison — 42.15°N, 105.91°WMorrison — 39.01°N, 111.02°WMorrison — 38.25°N, 110.81°WMorrison — 40.46°N, 109.52°WMorrison — 39.14°N, 109.02°WWessex — 50.63°N, 1.40°WWessex — 50.66°N, 1.47°WLourinhã — 39.85°N, 8.62°WLourinhã — 39.23°N, 9.34°WAlcobaça — 39.52°N, 9.13°WAlcobaça — 39.46°N, 9.18°WTunbridge Wells Sand — 51.09°N, 0.17°WTunbridge Wells Sand — 51.09°N, 0.30°WTunbridge Wells Sand — 51.04°N, 0.37°WWeald Clay — 50.95°N, 0.27°EWeald Clay — 51.10°N, 0.32°WMarnes de Bléville — 49.53°N, 1.35°WCamarillas — 40.65°N, 0.88°WTendaguru — 9.68°S, 39.22°ETahora — 38.92°S, 176.83°EGlowaczów — 50.89°N, 21.66°EVillar del Arzobispo — 40.67°N, 0.88°WSüntel — 52.29°N, 8.71°EElrhaz — 16.47°N, 9.17°ECastrillo de la Reina — 42.01°N, 3.33°WVectis — 50.66°N, 1.47°WFreixial — 39.09°N, 9.41°WAnning — 24.96°N, 102.06°EPraia da Amoreira-Porto Novo — 39.17°N, 9.20°W

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The named rock units Dryosauridae 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.

Dryosauridae and its relatives

Late Jurassic

Where Dryosauridae and its relatives were recorded in the Late Jurassic.

Found in the same rock

265 taxa

The Paleobiology Database records 60 sites for Dryosauridae, 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

41 references

Each of the 61 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. 29 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 Dryosauridae

Credit
Oh-Berlin.com
Licence
CC BY 2.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution-NonCommercial-ShareAlike
Commercial use
the licence does not allow it

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 itDryomorpha through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Milner and Norman 1984