Asteroxylon mackiei
E549113
Asteroxylon mackiei is an early Devonian vascular land plant known from exceptionally well-preserved fossils that provide key insights into the evolution of plant structure and terrestrialization.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
early vascular land plant
ⓘ
extinct plant species ⓘ lycophyte ⓘ |
| age | Pragian ⓘ |
| associatedWith |
Aglaophyton major
NERFINISHED
ⓘ
Rhynia gwynne-vaughanii NERFINISHED ⓘ Rhynie Chert biota NERFINISHED ⓘ |
| countryOfFossilDiscovery | Scotland NERFINISHED ⓘ |
| describedFrom | Rhynie, Aberdeenshire NERFINISHED ⓘ |
| division | Lycopodiophyta NERFINISHED ⓘ |
| ecologicalRole | early terrestrial pioneer plant ⓘ |
| environment | hot-spring influenced wetland ⓘ |
| family | Asteroxylaceae NERFINISHED ⓘ |
| fossilSite | Rhynie Chert NERFINISHED ⓘ |
| fossilStatus | type species of Asteroxylon ⓘ |
| genus | Asteroxylon NERFINISHED ⓘ |
| geologicalFormation | Rhynie Chert Formation NERFINISHED ⓘ |
| growthForm | upright aerial axes from prostrate rhizomes ⓘ |
| hasAnatomicalFeature |
centrarch protostele
ⓘ
distinct cortex and stele separation ⓘ enations ⓘ endodermis ⓘ lateral leafy shoots ⓘ leafless main axes ⓘ rhizoids ⓘ rhizome-like axes ⓘ secondary xylem absent ⓘ simple microphyll-like structures ⓘ vascular tissue ⓘ |
| importanceInPaleobotany |
model organism for early lycophyte morphology
ⓘ
used to infer early root evolution ⓘ |
| kingdom | Plantae ⓘ |
| livedApproximately | 410 million years ago ⓘ |
| maximumAxisDiameter | about 6 millimetres ⓘ |
| namedAfter | William Mackie NERFINISHED ⓘ |
| photosyntheticOrgan | lateral leafy shoots with enations ⓘ |
| preservationQuality | exceptionally well-preserved ⓘ |
| preservationType | silicified fossils ⓘ |
| reproductiveStructure | sporangia ⓘ |
| scientificSignificance |
important for studying terrestrialization of plants
ⓘ
key taxon for understanding evolution of vascular plants ⓘ provides detailed 3D anatomical information ⓘ |
| sporangiaPosition | lateral on specialized axes ⓘ |
| sporeType | homosporous ⓘ |
| taxonRank | species ⓘ |
| temporalRange | Early Devonian ⓘ |
| waterConductingTissue | tracheids ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.