Margarita

Manuel CABALLER · CC BY 4.0 · via Wikidata/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
- PectinibranchiaPBDB
- Life habit
- epifaunalPBDB, for Gastropoda
- Motility
- actively mobilePBDB, for Gastropoda
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 253 million years on record.
The record covers at least 254.14 Mya to 774 ka. No occurrence read is dated outside 259.857 Mya to 129 ka.
15 occurrences of Margarita on record, most of them in the Eocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
15 occurrences- Permian7%
- Late Cretaceous7%
- Paleocene7%
- Eocene27%
- Miocene13%
- Pliocene27%
- Pleistocene13%
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
10 formations
- Devil's Graveyard Formation2
- Etchegoin Formation2
- Jacalitos Formation2
- San Pedro Sand Formation2
- Entre Rios Formation1
- Branderfleck Formation1
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The named rock units Margarita has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Margarita and its relatives
EoceneWhere Margarita and its relatives were recorded in the Eocene.
Found in the same rock
552 taxa- Macoma nasuta4 sites
- Anadara trilineata3 sites
- Callianax biplicata3 sites
- Leukoma staminea3 sites
- Mahgarita stevensi3 sites
- Megangulus bodegensis3 sites
- Siliqua lucida3 sites
- Solen sicarius3 sites
- Tresus nuttallii3 sites
- Trochus (Margarita)3 sites
- Aartsenia gouldi2 sites
- Acanthinucella spirata2 sites
- Acila (Truncacila) castrensis2 sites
- Acteocina cerealis2 sites
- Acteocina culcitella2 sites
- Acteocina harpa2 sites
- Aesopus chrysalloides2 sites
- Agathistoma eiseni2 sites
- Alia carinata2 sites
- Anomia peruviana2 sites
- Antalis pretiosa2 sites
- Antisabia panamensis2 sites
- Balcis micans2 sites
- Boreotrophon pedroana2 sites
The Paleobiology Database records 15 sites for Margarita, 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
11 references- The Etchegoin Pliocene of middle California4
- The Paleontology and Stratigraphy of the Marine Pliocene and Pleistocene of San Pedro, California2
- Palaeoecology of a primate-friendly, middle Eocene community from Laredo, Texas and a review of stratigraphic occurrences of Paleogene land mammals across the Gulf Coastal Plain, USA1
- Bivalven, Gastropoden und Serpuliden aus den Branderfleckschichten (Cenoman) der Fahrenbergmulde (Nördliche Kalkalpen, Bayern): Taxonomie und Palökologie [Bivalves, gastropods and serpulids from the Branderfleck Formation (Cenomanian) of Fahrenbergmulde (Bavarian Alps): taxonomy and palaeoecology]1
- The phylogenetic position of Mahgarita stevensi: protoanthropoid or lemuroid?1
- Fossil vertebrates from the latest Eocene, Skyline channels, Trans-Pecos Texas1
- Marine Upper Cretaceous and lowermost Tertiary deposits in West Greenland1
- Tertiary mollusks from the Leeward Islands and Cuba1
- Ein Beitrag zur Kenntnis der deutschen Zechsteinschnecken1
- Wood, 18821
- Monografia de los terrenos marinos terciarios, de las cercanias del Parana1
Each of the 15 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 content2

Picture of Margarita
- Source
- Wikidata/Commons
- Credit
- Manuel CABALLER
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Credit
- Maf'j Alvarez
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itPectinibranchia through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Leach 1814