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 Woodsia has left across the world's sequence archives.
At a glance
eDNA detections1
Countries1
07Deep time11.6–7.25 Ma
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
Fossil range11.6–7.25 Ma Miocene
Dated fossil finds1
StatusExtinct no longer alive anywhere
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 Woodsia. Above itBeside it, each dot is one dated fossil find — few enough to count, so they are drawn individually rather than as a graph.
fossil range (PBDB) †each dot = one dated find
How it livedPBDB
Life habitnektonic
Dietcarnivore
Motilityactively mobile
Compositionhydroxyapatite
08Occurrence & distribution
Record type418 records
Wild obs. + sensor84
Museum / vouchered319
Cultivated / captive12
Fossil1
Other2
Origin
Native2
Range
Area of Occupancy AOO1 272 km²
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy50% within 1 km
≤100 m 32≤1 km 9≤10 km 41
82 georeferenced · 2 without coordinates
Open the mapobservation + sensor84
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 accuracy44% within 1 km
≤100 m 19≤1 km 35≤10 km 59>10 km 11
124 georeferenced · 195 without coordinates
Open the institutions mapphysical evidence319
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
Coordinate accuracy
no georeferenced coordinates · 12 records without
Open the mapnot free-living12
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
10Collections & institutions
Holding institutions48 of 71 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
Philadelphia, US
42
Moscow State Universitylocation not on record
33
Beijing, CN
31
Chengdu, CN
22
Bronx, US
13
Olocation not on record
12
Inner Mongolia Universitylocation not on record
10
Mexico City, MX
6
Auckland, NZ
6
Uppsala, SE
6
Saint Louis, US
6
Morgantown, US
5
Edinburgh, GB
5
Bloomington, US
5
MEXUlocation not on record
5
WTUlocation not on record
4
Taipei, TW
4
Northeastern Forestry Universitylocation not on record
4
Madison, US
4
Christchurch, NZ
4
Forest Survey and Design Institute, Forestry Administrative Bureau of Daxinganlinglocation not on record
4
ASUlocation not on record
3
Chapel Hill, US
3
Austin, US
3
Durango, MX
3
LDlocation not on record
3
Helsinki, FI
2
GBS RAN - Glavny Botanichesky Sad Rossijskoj Akademii Nauklocation not on record
2
Berlin, DE
2
Autlán de Navarro, MX
2
US
2
Boise, US
2
HAWlocation not on record
2
UFRRJlocation not on record
2
Peking Universitylocation not on record
2
Wuzhou, CN
2
Claremont, US
2
Xining, CN
2
TAIElocation not on record
2
Saint John, CA
2
Victoria, CA
2
Burlington, US
2
Nanjing, CN
2
Moscow, US
2
DOI/NPS, Colonial National Historical Parklocation not on record
2
B.A. Bennett Herbariumlocation not on record
1
Museo Nacional de Costa Rica (MNCR)location not on record
1
Cape Town, ZA
1
Universidad Nacional de Colombia (UNAL)location not on record
1
Cochabamba, BO
1
Arequipa, PE
1
Philadelphia, US
1
Taipei, TW
1
Lanzhou, CN
1
University of New Hampshirelocation not on record
1
Kew, GB
1
Chicago, US
1
Guasave, MX
1
Weber State Universitylocation not on record
1
San Jose State University, Museum of Birds and Mammalslocation not on record
1
Corvallis, US
1
National Biodiversity Institute, Costa Ricalocation not on record
1
Fort Worth, US
1
San Isidro, AR
1
Cambridge, US
1
Albuquerque, US
1
Denton, US
1
Wuhan, CN
1
Shanghai Chenshan Botanical Gardenlocation not on record
1
Sucre, BO
1
Pullman, US
1
71 institutions · 310 of 319 vouchered records shown · 9 without an institution code
Cultivated / Captivenot free-living
A living individual in a botanical garden, zoo or nursery — cultivated or kept, not free-living.
09Environmental DNA1 detections
Where the DNA of Woodsia 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
Detections DNA found1
Studies independent surveys1
Countries1
Signal confidence: weakweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 1 detections have coordinates
Open the map1 country0
How strong is each trace?
DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median13.7 °C 13.7–13.7
Seasonal swing summer↔winter37.5 °C
Max temp (day)17.5 °C
Min temp (night)8.80 °C
Precipitation90.0 mm/mo
Air humidity53.1 %
Moisture balance-23.9 mm/mo
Vapour deficit734 Pa
Wind speed1.40 m/s
Cloud cover34.6 %
CHELSA 1981–2010, ~9 km grid, at location & month of 1 detection point · median with p10–p90 · reflects where sampling happened, not only the true niche
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.
