Mancalla
Mancalla is an extinct genus of prehistoric flightless alcids that lived on the Pacific coast of today's California and Mexico during the Late Miocene to Early Pliocene.

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
- AlcinaePBDB
- 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 5.2 million years on record.
The record covers at least 5.333 Mya to 129 ka. No occurrence read is dated outside 7.246 Mya to 11.7 ka.
32 occurrences of Mancalla 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
32 occurrences- Miocene6%
- Pliocene64%
- Pleistocene30%
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
7 formations
- San Diego Formation19
- Almejas Formation4
- San Mateo Formation2
- Palos Verdes Sand Formation1
- Niguel Formation1
- Fernando Formation1
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The named rock units Mancalla 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.
Mancalla and its relatives
PlioceneWhere Mancalla and its relatives were recorded in the Pliocene.
Found in the same rock
236 taxa- Panalcidae10 sites
- Mancallinae5 sites
- Puffinus kanakoffi5 sites
- Brachyramphus pliocenum4 sites
- Mysticeti4 sites
- Phalacrocorax kennelli4 sites
- Phoebastria albatrus4 sites
- Puffinus4 sites
- Synthliboramphus rineyi4 sites
- Ardenna grisea3 sites
- Balaenopteridae3 sites
- Cetacea3 sites
- Delphinidae3 sites
- Gavia howardae3 sites
- Haliaeetus3 sites
- Phocoenidae3 sites
- Ptychoramphus aleuticus3 sites
- Accipitridae2 sites
- Aethia cristatella2 sites
- Anas platyrhynchos2 sites
- Apodemus2 sites
- Bison2 sites
- Brachyramphus dunkeli2 sites
- Callorhinus ursinus2 sites
The Paleobiology Database records 26 sites for Mancalla, 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
14 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)3
- Pliocene avian remains from Baja California3
- Pleistocene seabirds from Shiriya, northeast Japan: systematics and oceanographic context2
- The Lucas Auk appears again2
- Seabirds (Aves) from the Pleistocene Kazusa and Shimosa groups, central Japan1
- The fossil marine vertebrate fauna of the latest Miocene Almejas Formation, Isla Cedros, Baja California, Mexico1
- 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
- Pleistocene vertebrates of the Los Angeles basin and vicinity:(exclusive of Rancho La Brea)1
- A collection of bird remains from the Pliocene of San Diego, California1
- New avian records for the Pliocene of California1
Each of the 32 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. 2 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 Mancalla
- Source
- Wikipedia/Commons
- Credit
- Neil Adam Smith
- Licence
- CC BY 3.0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Credit
- Cooper_Lab
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
The description on this site
- Source
- Wikipedia, “Mancalla”
- 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 itAlcinae through timeFormations of the PlioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Lucas 1901