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Maiaspora
Genus Maiaspora D. Mamontov, D. McLean, O.A. Orlova, O.A. Gavrilova Spec. Pap. Palaeontol., 2019, (10.1002/spp2.1278): 18. 25 Sep 2019
- Name
- Maiaspora
- Rank
- Genus
- Authors (Pub.)
- Mamontov D. A.
McLean D.
Orlova O. A.
Gavrilova O. A.
- Publication
- Maiaspora: a new miospore genus with enigmatic sculpture from the late Visean of European Russia [2019/9]
- Journal
- Special Papers in Palaeontology
- Annee/Jahrgang
- 2019
- Issue
- 10.1002/spp2.1278
- Page number
- 18
- Year
- 2019
- Fossil Status
- sporae dispersae
- Type
- Maiaspora panopta
- Diagnosis
- Spores radial, trilete, acavate, azonate. Amb
triangular with straight or concave sides, rounded apices.
Laesura straight with delicate labra, three-quarters or
four-fifths of the spore radius in length. Exospore is relatively
thin. Proximal and distal surfaces are covered by
biform sculpture with a reticulum decorated by apiculate
elements (verrucae, coni, tuberculae) to produce a
metareticuloid sculpture. Muri are low, slightly sinuous
and clearly tapered at the top, more or less triangular in
vertical cross-section. Lumina are polygonal. Distinct, circular
or elliptical scrobiculae occur at the bases of the
lumina and open as vertical, funnel-like tunnels
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