Fraxinisaura rozynekae

Fraxinisaura is an extinct genus of basal lepidosauromorph reptile known from the Middle Triassic of Germany. The only known species is Fraxinisaura rozynekae. It possessed an elongated snout, unique features of the teeth, and an ilium which was intermediate in orientation between sphenodontians and squamates. Based on characteristics of the maxilla, it is considered a close relative of Marmoretta from the Middle Jurassic of the United Kingdom, resolving a ghost lineage between that genus and other Triassic basal lepidosauromorphs.

Fraxinisaura rozynekae

H.-D. Sues & R. R. Schoch · CC0 · 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
FraxinisauraPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Amniota

Time the record covers

At most 2.5 million years on record.

The one occurrence read is dated to somewhere between 239.48 Mya and 237 Mya, which is a dating window rather than a span.

Middle Triassic — about 1 of 1 occurrenceMiddle TriassicLate Triassic — about 0 of 1 occurrence240–239 Mya — about 0.0 occurrences239–239 Mya — about 0.0 occurrences239–239 Mya — about 0.0 occurrences239–239 Mya — about 0.0 occurrences239–239 Mya — about 0.0 occurrences239–239 Mya — about 0.0 occurrences239–239 Mya — about 0.0 occurrences239–239 Mya — about 0.0 occurrences239–238 Mya — about 0.0 occurrences238–238 Mya — about 0.0 occurrences238–238 Mya — about 0.0 occurrences238–238 Mya — about 0.0 occurrences238–238 Mya — about 0.0 occurrences238–238 Mya — about 0.0 occurrences238–238 Mya — about 0.0 occurrences238–238 Mya — about 0.0 occurrences238–238 Mya — about 0.0 occurrences238–237 Mya — about 0.0 occurrences237–237 Mya — about 0.0 occurrences237–237 Mya — about 0.0 occurrences237–237 Mya — about 0.0 occurrences237–237 Mya — about 0.0 occurrences239.98 Mya236.5 Mya

1 occurrence of Fraxinisaura rozynekae on record, most of them in the Middle Triassic. 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 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

1 formation

Erfurt — 49.08°N, 9.89°E

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The named rock units Fraxinisaura rozynekae has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Fraxinisaura rozynekae and its relatives

Middle Triassic

Where Fraxinisaura rozynekae and its relatives were recorded in the Middle Triassic.

Found in the same rock

32 taxa

The Paleobiology Database records 1 site for Fraxinisaura rozynekae, 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

1 reference

Each of the 1 occurrence 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Fraxinisaura rozynekae

Credit
H.-D. Sues & R. R. Schoch
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Fraxinisaura rozynekae 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.

Keep going

What may have been alongside itFraxinisaura through timeFormations of the Middle TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Schoch and Sues 2018