Akrophyllas
| Akrophyllas Temporal range: Ediacaran
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|---|---|
| File:Morphological reconstruction of Akrophyllas longa.png | |
| Artist's reconstruction of A. longa. | |
| Scientific classification | |
| Kingdom: | |
| Genus: | †Akrophyllas Guy M. Narbonne and James G. Gehling, 2023[1]
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| Species: | †A. longa
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| Binomial name | |
| Akrophyllas longa | |
Akrophyllas (Akros: "at the top" in Greek, Phyllas: "leaf" in Greek) is a genus of Ediacaran petalonamid, known only from the Rawnsley Quartzite in the Flinders Ranges, South Australia.
Specimens were first found from deposits in the Flinders Ranges, and are exclusive to the Rawnsley Quartzite Ediacara Member.
Description
[edit | edit source]The holotype specimen measures 150 mm long and with a tapering width of 61-45 mm. The largest frond fragment described is 32 cm long and 7.7 cm wide.
Morphology
[edit | edit source]
Akrophyllas differs from all other Ediacaran fronds; exhibiting a stalk that is visible only on the opposite side of the frond and is internal to the reverse side where the first-order branches instead meet at a zigzag axial trace. Each first-order branch overlaps the distal end of the next branch to form an overlapping array, with each branch gently dipping towards the proximal end of the frond.
See also
[edit | edit source]References
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