Calamagras

Calamagras

Walter Auffenberg · CC BY-NC 4.0 · 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
UngaliophiinaePBDB
Diet
carnivorePBDB, for Boidae
Life habit
solitaryPBDB, for Booidea
Motility
actively mobilePBDB, for Osteichthyes
Environment
freshwater,terrestrialPBDB, for Boidae

Time the record covers

At least 40 million years on record.

The record covers at least 56 Mya to 15.98 Mya. No occurrence read is dated outside 59.24 Mya to 11.63 Mya.

Paleocene — about 1 of 40 occurrencesPaleoceneEocene — about 16 of 40 occurrencesEoceneOligocene — about 14 of 40 occurrencesOligoceneMiocene — about 9 of 40 occurrencesMiocene60–59 Mya — about 0.2 occurrences59–57 Mya — about 0.5 occurrences57–55 Mya — about 1 occurrence55–54 Mya — about 2 occurrences54–52 Mya — about 2 occurrences52–50 Mya — about 2 occurrences50–49 Mya — about 2 occurrences49–47 Mya — about 1 occurrence47–45 Mya — about 0.6 occurrences42–40 Mya — about 0.2 occurrences40–39 Mya — about 0.5 occurrences39–37 Mya — about 0.6 occurrences37–35 Mya — about 2 occurrences35–34 Mya — about 2 occurrences34–32 Mya — about 5 occurrences32–30 Mya — about 2 occurrences30–29 Mya — about 1.0 occurrences29–27 Mya — about 0.9 occurrences27–26 Mya — about 0.7 occurrences26–24 Mya — about 2 occurrences24–22 Mya — about 3 occurrences22–21 Mya — about 1 occurrence21–19 Mya — about 1 occurrence19–17 Mya — about 2 occurrences17–16 Mya — about 2 occurrences16–14 Mya — about 0.8 occurrences14–12 Mya — about 0.8 occurrences12–11 Mya — about 0.2 occurrences56 Mya15.98 Mya60.2 Mya10.7 Mya

40 occurrences of Calamagras 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

40 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

Brule — 40.74°N, 103.19°WBrule — 42.40°N, 103.80°WBrule — 45.50°N, 103.10°WMonroe Creek — 41.73°N, 104.08°WHarrison — 42.40°N, 103.60°WHarrison — 42.80°N, 100.80°WHeadon Hill — 50.72°N, 1.22°WHeadon Hill — 50.72°N, 1.59°WBridger — 42.42°N, 109.35°WBridger — 41.80°N, 110.70°WGering — 41.70°N, 103.10°WLignites de Soissonais — 49.08°N, 4.03°ELignites de Soissonais — 49.05°N, 4.00°ESplit Rock — 43.00°N, 108.00°WWasatch — 42.37°N, 108.91°WFleming — 30.70°N, 94.70°WAlai Beds — 42.00°N, 76.00°EAlachua — 29.70°N, 82.60°WCypress Hills — 49.57°N, 109.88°WHsanda Gol — 45.26°N, 101.72°ERosebud — 43.20°N, 101.80°WCalvert — 39.20°N, 75.60°WChadron — 46.10°N, 103.30°WSan Jose — 36.19°N, 107.09°WArikaree — 43.20°N, 108.20°W

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The named rock units Calamagras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 occurrences have no formation on record, which is common for older literature.

Calamagras and its relatives

Eocene

Where Calamagras and its relatives were recorded in the Eocene.

Found in the same rock

980 taxa

The Paleobiology Database records 36 sites for Calamagras, 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

27 references

Each of the 40 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. 15 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 Calamagras

Source
GBIF
Credit
Walter Auffenberg
Licence
CC BY-NC 4.0
Commercial use
the licence does not allow it

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Calamagras floridanus · UF:VP:6150

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

Keep going

What may have been alongside itUngaliophiinae through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cope 1873