Angelina

Angelina Salter, 1859, is a genus of ptychopariid trilobite belonging to the Family Olenidae, Suborder olenina. It lived during the Tremadocian Stage, lowermost of the two standard worldwide divisions forming the Lower Ordovician Series and lowest of the seven stages within the Ordovician System. It encompasses all rocks formed during Tremadocian times, which spanned the interval between 485.4 million and 477.7 million years ago. Fossilized remains of Angelina are known from Wales, Central and South America. It differs from most other Triarthrinae in being larger, with a relatively narrow glabella, the occipital ring poorly defined, and lateral glabellar furrows relatively obscure. Eyes are placed midlength that of the cephalon and the facial sutures converge on the front border at the midline. Species also have long genal spines.

Angelina

Micktherocktapper · 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
OlenidaePBDB
Diet
carnivorePBDB, for Trilobita
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
well-developedPBDB, for Olenidae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 5.7 million years on record.

The record covers at least 486.85 Mya to 481.1 Mya. No occurrence read is dated outside 497 Mya to 477.1 Mya.

Cambrian — about 24 of 96 occurrencesCambrianOrdovician — about 72 of 96 occurrencesOrdovician498–497 Mya — about 0.4 occurrences497–496 Mya — about 2 occurrences496–495 Mya — about 2 occurrences495–495 Mya — about 2 occurrences495–494 Mya — about 2 occurrences494–493 Mya — about 2 occurrences493–493 Mya — about 2 occurrences493–492 Mya — about 2 occurrences492–491 Mya — about 2 occurrences491–491 Mya — about 2 occurrences491–490 Mya — about 2 occurrences490–489 Mya — about 2 occurrences489–488 Mya — about 2 occurrences488–488 Mya — about 2 occurrences488–487 Mya — about 2 occurrences487–486 Mya — about 1 occurrence486–486 Mya — about 5 occurrences486–485 Mya — about 5 occurrences485–484 Mya — about 5 occurrences484–484 Mya — about 5 occurrences484–483 Mya — about 5 occurrences483–482 Mya — about 5 occurrences482–481 Mya — about 5 occurrences481–481 Mya — about 5 occurrences481–480 Mya — about 6 occurrences480–479 Mya — about 6 occurrences479–479 Mya — about 6 occurrences479–478 Mya — about 6 occurrences478–477 Mya — about 6 occurrences477–477 Mya — about 2 occurrences486.85 Mya481.1 Mya497.5 Mya476.6 Mya

96 occurrences of Angelina on record, most of them in the Ordovician. 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

96 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

17 formations

Lampazar — 23.00°S, 66.00°WLampazar — 24.14°S, 65.97°WLampazar — 23.15°S, 65.60°WLampazar — 23.05°S, 65.47°WLampazar — 23.17°S, 65.44°WLampazar — 23.54°S, 65.41°WLampazar — 22.72°S, 64.91°WLampazar — 23.62°S, 65.69°WLampazar — 22.92°S, 66.62°WTinu — 17.37°N, 97.17°WTinu — 17.47°N, 97.23°WTinu — 17.03°N, 97.23°WTinu — 17.03°N, 96.57°WSanta Rosita — 24.00°S, 65.00°WSanta Rosita — 23.00°S, 66.00°WSanta Rosita — 22.18°S, 65.26°WSanta Rosita — 22.77°S, 66.20°WVolcancito — 28.87°S, 67.75°WVolcancito — 28.87°S, 67.69°WChañarcito — 23.58°S, 65.43°WChañarcito — 23.74°S, 65.47°WTaique — 23.84°S, 66.00°WTaique — 23.87°S, 65.99°WGuanacuna — 17.62°S, 62.22°WGuanacuna — 22.00°S, 65.00°WCasayok — 22.98°S, 65.35°WHabberley — 52.57°N, 2.95°WHabberley — 52.55°N, 2.98°WHabberley — 52.59°N, 2.93°WCoquena — 23.58°S, 65.43°WTaraya — 22.03°S, 65.35°WTucumilla — 21.00°S, 65.00°WCardonal — 23.00°S, 66.00°WAzul Pampa — 22.95°S, 65.42°WRabbitkettle — 61.78°N, 127.95°WMicklewood Beds — 51.67°N, 2.44°WMarathon — 30.16°N, 103.33°W

Loading coastlines…

The named rock units Angelina has been recovered from, largest first. Drawn where the rock is now, not where it formed. 26 occurrences have no formation on record, which is common for older literature.

Angelina and its relatives

Ordovician

Where Angelina and its relatives were recorded in the Ordovician.

Found in the same rock

154 taxa

The Paleobiology Database records 92 sites for Angelina, 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

19 references

Each of the 96 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. 7 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 Angelina

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

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itOlenidae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Salter 1859