Ryderia

Ryderia

via GBIF · CC0 · via GBIF. 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
PolidevciinaePBDB
Diet
deposit feederPBDB, for Nuculanoidea
Life habit
infaunalPBDB, for Nuculanoidea
Motility
facultatively mobilePBDB, for Nuculanoidea
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 26 million years on record.

The record covers at least 201.4 Mya to 174.7 Mya. No occurrence read is dated outside 205.7 Mya to 161.5 Mya.

Late Triassic — about 5 of 48 occurrencesLate TriassicEarly Jurassic — about 42 of 48 occurrencesEarly JurassicMiddle Jurassic — about 1 of 48 occurrencesMiddle JurassicLate Jurassic — about 0 of 48 occurrences207–205 Mya — about 0.8 occurrences205–204 Mya — about 2 occurrences204–202 Mya — about 2 occurrences202–200 Mya — about 3 occurrences200–199 Mya — about 4 occurrences199–197 Mya — about 5 occurrences197–196 Mya — about 5 occurrences196–194 Mya — about 5 occurrences194–193 Mya — about 5 occurrences193–191 Mya — about 3 occurrences191–190 Mya — about 3 occurrences190–188 Mya — about 3 occurrences188–187 Mya — about 3 occurrences187–185 Mya — about 3 occurrences185–184 Mya — about 2 occurrences184–182 Mya — about 0.1 occurrences182–181 Mya — about 0.1 occurrences181–179 Mya — about 0.1 occurrences179–177 Mya — about 0.1 occurrences177–176 Mya — about 0.1 occurrences176–174 Mya — about 0.1 occurrences174–173 Mya — about 0.1 occurrences173–171 Mya — about 0.1 occurrences171–170 Mya — about 0.1 occurrences170–168 Mya — about 0.1 occurrences168–167 Mya — about 0.1 occurrences167–165 Mya — about 0.1 occurrences165–164 Mya — about 0.1 occurrences164–162 Mya — about 0.1 occurrences162–161 Mya — about 0.0 occurrences201.4 Mya174.7 Mya206.6 Mya160.6 Mya

48 occurrences of Ryderia on record, most of them in the Early 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

48 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

11 formations

Fjerritslev — 56.56°N, 10.01°EAmaltheenton — 49.79°N, 11.04°EAmaltheenton — 50.06°N, 10.79°EAmaltheenton — 52.06°N, 8.34°EAmaltheenton — 49.35°N, 11.36°ELower Lias — 51.80°N, 1.88°WWestbury — 50.97°N, 2.96°WWestbury — 51.17°N, 3.27°WTolo Channel — 22.44°N, 114.28°ETolo Channel — 22.49°N, 114.32°EJinji — 23.48°N, 116.01°EJinji — 22.16°N, 112.50°EJinji — 23.17°N, 114.60°EGermig — 28.70°N, 86.14°ETakwahoni — 58.65°N, 132.88°WOolite Marl — 51.80°N, 1.88°WCleveland Ironstone — 54.45°N, 0.57°WLemede — 40.11°N, 8.77°W

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The named rock units Ryderia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Ryderia and its relatives

Early Jurassic

Where Ryderia and its relatives were recorded in the Early Jurassic.

Found in the same rock

299 taxa

The Paleobiology Database records 43 sites for Ryderia, 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

17 references

Each of the 48 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. 5 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 Ryderia

Source
GBIF
Credit
via GBIF
Licence
CC0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itPolidevciinae through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Wilton 1930)