Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
NarrativeWikipediaarticle
Traits & measurements1 literature sources2 traits
Occurrence & distributionGBIF11 records
DNA & barcodingBOLD4 specimens
01Narrative
The Rocky Mountain capshell (Acroloxus coloradensis) is a species of freshwater snail in the family Acroloxidae, the river limpets. It is the only member of the family found in North America.Anderson, T. Rocky Mountain Capshell Snail (Acroloxus coloradensis): a technical conservation assessment. USDA Forest Service, Rocky Mountain Region. January 20, 2005.
No narrative description available for this taxon yet.
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 Acroloxus coloradensis has left across the world's sequence archives.
At a glance
DNA specimens4
BINs1
Marker genes1
Countries2
The DNA barcodethe species' typical barcode, built from every sequenced specimen
COI-5P628 bp consensus4 specimens
ACGT
▸ drag or hover over the strip to read any position — letter and how much it varies
Violet ticks below the strip = positions where individuals differ; flat = the species' unchanging signature. 100% of positions are identical in every specimen.
Where individuals differ — all 3 variable positions, in barcode order
Each circle is a barcode variant; bigger = more specimens, colour = region. Lines join the most similar variants and the tick marks count the mutations between them — a tight cluster is one “dialect”, a long line a more divergent lineage. Click a circle to list its actual specimens.
Diversity (π)0.24%
Haplotypes3
BIN1
Most divergent pair0.48%
N.America
Closest relatives by DNA barcode
The species whose COI barcode is most similar to this one — a quick “who is this most like”. The percentage is how much the barcode differs; it approximates, but is not, the full evolutionary tree.
★ 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.
★COI-5P
animal barcode
07Deep time~2.68 Ma lineage
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
DNA clock origin2.68 Ma TimeTree
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 orange marker is the DNA clock: DNA accumulates mutations at a roughly steady rate, so comparing this species' DNA with its relatives estimates when the lineage split off — independently of any fossil.
DNA clock origin
08Occurrence & distribution
Record type11 records
Museum / vouchered11
Range
Area of Occupancy AOO36 km²
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.
Coordinate accuracy
no georeferenced coordinates · 11 records without
Open the institutions mapphysical evidence11
10Collections & institutions
Holding institutions2 of 5 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record
5
Delaware Museum of Nature and Sciencelocation not on record
2
Ann Arbor, US
2
Santa Barbara Museum of Natural Historylocation not on record
