Mancallinae
Mancallinae is an extinct subfamily of prehistoric flightless alcids that lived on the Pacific coast of today's California and Mexico from the late Miocene epoch to the early Pleistocene. They are sometimes collectively referred to as Lucas auks after the scientist who described the first species, Frederic Augustus Lucas.

Neil Adam Smith · CC BY 3.0 · 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
- AlcidaePBDB
- Diet
- carnivorePBDB, for Coelurosauria
- Life habit
- ground dwelling, solitaryPBDB, for Theropoda
- Motility
- actively mobilePBDB, for Theropoda
- Environment
- marinePBDB, for Charadriiformes
Time the record covers
At least 6.9 million years on record.
The record covers at least 11.63 Mya to 4.7 Mya. No occurrence read is dated outside 15.98 Mya to 1.4 Mya.
23 occurrences of Mancallinae on record, most of them in the Pliocene. 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
23 occurrences- Miocene38%
- Pliocene42%
- Pleistocene20%
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
6 formations
- San Diego Formation14
- Monterey Formation3
- San Mateo Formation3
- Santa Margarita Formation1
- Capistrano Formation1
- Wilson Grove Formation1
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The named rock units Mancallinae has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Mancallinae and its relatives
PlioceneWhere Mancallinae and its relatives were recorded in the Pliocene.
Found in the same rock
211 taxa- Panalcidae7 sites
- Mancalla5 sites
- Balaenopteridae4 sites
- Carcharodon hastalis4 sites
- Diomedea4 sites
- Moris lompocana4 sites
- Phoebastria albatrus4 sites
- Puffinus kanakoffi4 sites
- Aethia3 sites
- Aves3 sites
- Brachyramphus pliocenum3 sites
- Dusisiren3 sites
- Herpetocetinae3 sites
- Imagotaria3 sites
- Mysticeti3 sites
- Nannocetus3 sites
- Odobenidae3 sites
- Otodus megalodon3 sites
- Panphyseteroidea3 sites
- Pelagornis orri3 sites
- Podiceps arndti3 sites
- Puffinus calhouni3 sites
- Synthliboramphus rineyi3 sites
- Albireonidae2 sites
The Paleobiology Database records 22 sites for Mancallinae, 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
9 references- Fossil birds of the San Diego Formation, Late Pliocene, Blancan, San Diego County, California13
- Taxonomic revision and phylogenetic analysis of the flightless Mancallinae (Aves, Pan-Alcidae)2
- Sirenian evolution in the North Pacific Ocean2
- A new marine vertebrate assemblage from the Wilson Grove Formation at Bloomfield Quarry (Late Miocene), Sonoma County, California1
- Fossil birds from Tertiary marine beds at Oceanside, San Diego County, California, with discriptions of two species of the genera Uria and Cepphus (Aves: Alcidae)1
- The vertebrate fossils of the marine Cenozoic San Mateo Formation at Oceanside, California1
- A third species of Mancalla from the Late Pliocene San Diego Formation of California (Aves: Alcidae)1
- A new species of flightless auk from the Miocene of California (Alcidae: Mancallinae)1
- A possible ancestor of the Lucas Auk (Family Mancallidae) from the Tertiary of Orange County, California1
Each of the 23 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. 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 Mancallinae
- Source
- Wikipedia/Commons
- Credit
- Neil Adam Smith
- Licence
- CC BY 3.0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- Source
- Wikipedia, “Mancallinae”
- 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 itAlcidae through timeFormations of the PlioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Miller 1946)