Elpistostegalia
E841966
Elpistostegalia is an extinct group of lobe-finned fishes that includes transitional forms closely related to the earliest tetrapods and the water-to-land evolutionary shift.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
clade
ⓘ
extinct taxon ⓘ sarcopterygian group ⓘ |
| ancestralTo | Tetrapoda NERFINISHED ⓘ |
| approximateAgeMa | ~385–360 million years ago ⓘ |
| associatedWith | water-to-land transition ⓘ |
| belongsToGroup | lobe-finned fishes ⓘ |
| class | Sarcopterygii NERFINISHED ⓘ |
| closelyRelatedTo | early tetrapods ⓘ |
| ecologicalRole | shallow-water predator ⓘ |
| evolutionaryRole | transitional between fishes and tetrapods ⓘ |
| fossilsFoundIn |
Australia
NERFINISHED
ⓘ
Canada NERFINISHED ⓘ Euramerica NERFINISHED ⓘ Greenland NERFINISHED ⓘ Latvia NERFINISHED ⓘ Laurentia NERFINISHED ⓘ North America NERFINISHED ⓘ |
| habitat |
coastal wetlands
ⓘ
deltaic environments ⓘ shallow freshwater or brackish environments ⓘ |
| hasCharacteristic |
dorsally placed eyes
ⓘ
flattened skull ⓘ limb-like endoskeleton in fins ⓘ loss or reduction of dorsal fin ⓘ reduced median fins ⓘ ribs capable of supporting body ⓘ robust pectoral fins ⓘ shallow-water adaptations ⓘ |
| importantFor |
understanding fish–tetrapod transition
ⓘ
understanding origin of tetrapod limbs ⓘ |
| isExtinct | true ⓘ |
| kingdom | Animalia ⓘ |
| livedDuring |
Devonian period
NERFINISHED
ⓘ
Paleozoic era ⓘ |
| notableMember |
Elpistostege
NERFINISHED
ⓘ
Panderichthys NERFINISHED ⓘ Tiktaalik NERFINISHED ⓘ |
| partOf | stem-tetrapod radiation ⓘ |
| phylum | Chordata ⓘ |
| showsTransitionOf |
paired fins to limbs
ⓘ
respiratory structures from gills to air-breathing adaptations ⓘ skull and neck mobility ⓘ |
| studiedIn | vertebrate paleontology ⓘ |
| subphylum | Vertebrata NERFINISHED ⓘ |
| superclass | Sarcopterygii NERFINISHED ⓘ |
| taxonomicRank | clade ⓘ |
| temporalRange | Late Devonian ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.