Adamsochrysa

Adamsochrysa is an extinct neuropteran genus in the green lacewing family Chrysopidae which is solely known from Eocene sediments exposed in northwestern North America. The genus contains two described species, the type species Adamsochrysa aspera along with Adamsochrysa wilsoni. An additional three specimens have been provisionally placed into the genus as Adamsochrysa Sp. A, Adamsochrysa Sp. B, and Adamsochrysa indet. The genus is placed into the green lacewing subfamily Nothochrysinae and considered as probably closest in relation to the living Australian and Tasmanian genus Dictyochrysa.

Adamsochrysa

Kevmin · CC BY-SA 4.0 · 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
NothochrysinaePBDB
Motility
actively mobilePBDB, for Arthropoda
Environment
terrestrialPBDB, for Insecta

Time the record covers

At most 8 million years on record.

Every occurrence read is dated to somewhere between 56 Mya and 48.07 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Paleocene — about 0 of 5 occurrencesEocene — about 5 of 5 occurrencesEocene56–56 Mya — about 0.1 occurrences56–56 Mya — about 0.2 occurrences56–55 Mya — about 0.2 occurrences55–55 Mya — about 0.2 occurrences55–55 Mya — about 0.2 occurrences55–54 Mya — about 0.2 occurrences54–54 Mya — about 0.2 occurrences54–54 Mya — about 0.2 occurrences54–54 Mya — about 0.2 occurrences54–53 Mya — about 0.2 occurrences53–53 Mya — about 0.2 occurrences53–53 Mya — about 0.2 occurrences53–52 Mya — about 0.2 occurrences52–52 Mya — about 0.2 occurrences52–52 Mya — about 0.2 occurrences52–51 Mya — about 0.2 occurrences51–51 Mya — about 0.2 occurrences51–51 Mya — about 0.2 occurrences51–51 Mya — about 0.2 occurrences51–50 Mya — about 0.2 occurrences50–50 Mya — about 0.2 occurrences50–50 Mya — about 0.2 occurrences50–49 Mya — about 0.2 occurrences49–49 Mya — about 0.2 occurrences49–49 Mya — about 0.2 occurrences49–48 Mya — about 0.2 occurrences48–48 Mya — about 0.2 occurrences48–48 Mya — about 0.1 occurrences56.5 Mya47.6 Mya

5 occurrences of Adamsochrysa on record, most of them in the Eocene. 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

5 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

Klondike Mountain — 48.66°N, 118.75°W

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The named rock units Adamsochrysa has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Adamsochrysa and its relatives

Eocene

Where Adamsochrysa and its relatives were recorded in the Eocene.

Found in the same rock

121 taxa

The Paleobiology Database records 4 sites for Adamsochrysa, 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 5 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. 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 Adamsochrysa

Credit
Kevmin
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Adamsochrysa 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 itNothochrysinae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Makarkin and Archibald 2013