Mactra stultorum
(Linnaeus, 1758) · speciesAt a glance
Sources10 archives
Databases and archives Mactra stultorum's data was compiled from.
WikipediaWikimedia Foundation5 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility19 078 records↗
OBISOcean Biodiversity Information System7 026 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI30 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics57 specimens↗
Open Tree of LifeOpenTreephylogeny backbone↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
Paleobiology DatabasePBDB consortiumfossil record↗
Catalogue of LifeCOLtaxonomy↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
Mactra stultorum, previously sometimes known as Mactra corallina, is a species of edible saltwater clam, a marine bivalve mollusc in the family Mactridae, the trough shells.
No narrative description available for this taxon yet.
Size & morphology1
Habitat & environment3
Other traits3
A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Mactra stultorum has left across the world's sequence archives.
At a glance
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
The complete instruction manual Mactra stultorum carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.
Chromosomes & ploidyhow the DNA is packaged
2n is the full chromosome count in a normal body cell; n is a gamete (egg or sperm), which carries half. Ploidy is how many complete chromosome sets each cell holds — 2× (diploid) is typical for animals, while higher levels (polyploidy) are common in plants. Click any value below to see the underlying records and sources.
2n 381×GoaT · Publications compiled by GoaT data curators and public
diploid1×GoaT · Publications compiled by GoaT data curators and public
How far back this lineage goes — and how we know. Everything here is measured in Ma, short for “mega-annum”: millions of years ago. The chart reads left to right like a calendar of the Earth, from the deep past on the left to today at the right edgetop to bottom like a core drilled through the Earth, from the deep past at the top down to today at the bottom.
At a glance
When this lineage existed
How to read this: the coloured strip along the bottomdown the left is the geological calendar — the standard epochs (Pliocene, Pleistocene…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. This lineage is a young one, so the strip is zoomed in to epochs — the finer subdivisions inside a period. The solid bar is the fossil range: the span between the oldest and the youngest fossil that palaeontologists have assigned to Mactra stultorum. Above itBeside it, each dot is one dated fossil find — few enough to count, so they are drawn individually rather than as a graph.
How it livedPBDB
Record type26 109 records
Origin
Range
Depth
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions15 of 48 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| CEFASlocation not on record | 713 |
| Israel Oceanographic & Limnological Research, Ltd. The National Institute of Oceanographylocation not on record | 674 |
| RWSlocation not on record | 477 |
| Natural History Museum Rotterdamlocation not on record | 179 |
| Frankfurt am Main | 143 |
| Institut Francais pour l'Etude de la Merlocation not on record | 102 |
| Stockholm, SE | 56 |
| ICM-CSIClocation not on record | 48 |
| 486location not on record | 41 |
| 730location not on record | 39 |
| Cambridge, US | 35 |
| Research Institute for Agriculture, Fisheries and Food (ILVO)location not on record | 31 |
| Laboratoire d'Océanographie Biologique, Universite de Bordeaxlocation not on record | 29 |
| National Natural History Collectionslocation not on record | 26 |
| DASSHlocation not on record | 26 |
| RBINS-Scientific Heritagelocation not on record | 24 |
| Provincia di Livornolocation not on record | 17 |
| PNHSlocation not on record | 12 |
| Barcelona, ES | 11 |
| Philadelphia, US | 10 |
| Santa Barbara Museum of Natural Historylocation not on record | 10 |
| Denver, US | 10 |
| Biomorlocation not on record | 8 |
| MHN-UPlocation not on record | 7 |
| Brussels, BE | 7 |
| Eco laboratory geochemistry Benthic Environments UMR 8222 (4503) Université de Liège Underwater research and oceanographic station (4501)location not on record | 6 |
| Paris, FR | 6 |
| Delaware Museum of Nature and Sciencelocation not on record | 5 |
| Observatoire Océanologique de Banyuls-Sur-Mer; Laboratoire d'Océanographie Biologiquelocation not on record | 4 |
| WMR_IMARESlocation not on record | 4 |
| Eco laboratory geochemistry Benthic Environments UMR 8222 (4503) Phaxas Expertise Of Marine Fauna (4507)location not on record | 3 |
| Champaign, US | 3 |
| Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Scienceslocation not on record | 3 |
| Deutsches Zentrum fuer Marine Biodiversitaetsforschunglocation not on record | 3 |
| Helsinki, FI | 2 |
| New Haven, US | 2 |
| IEO-COMA-CSIClocation not on record | 2 |
| 630location not on record | 1 |
| Vlaams Instituut voor de Zeelocation not on record | 1 |
| Eco laboratory geochemistry Benthic Environments UMR 8222 (4503)location not on record | 1 |
| ELMClocation not on record | 1 |
| Auckland, NZ | 1 |
| Sam Noble Oklahoma Museum of Natural Historylocation not on record | 1 |
| Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record | 1 |
| South Kensington, GB | 1 |
| Salzburg, AT | 1 |
| Saint John, CA | 1 |
| SNSDlocation not on record | 1 |
Where the DNA of Mactra stultorum was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.
Signal
Where its DNA was found
How strong is each trace?
Modelled climatemodelled
How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.