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Sphenopteris sanjuliensis

Sphenopteridae

Discussion

Diagnosis: Secondary pinnae opposite to alternate. Adjacent pinnules continuous via a lamina less than 1 mm, alternate to sub-opposite arrangement. Distal pinnules do not form a bifid tip, and apices are entire and acute. Proximal pinnules bifurcate in the distal one-quarter and sporadically in some cases in the distal two-thirds of the lamina to produce two acutely pointed lobes; bifid tips acute and of equal size and shape. Pinnule apices rarely trifid. Venation is catadromic.

Synonymy list
YearName and author
2005Sphenopteris sanjuliensis Cantrill and Nagalingum p. 94 figs. pl. 3, figs. A-E

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RankNameAuthor
kingdomPlantae
familySphenopteridae
RankNameAuthor
genusSphenopterisSternberg 1825
speciessanjuliensis

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Sphenopteris sanjuliensis Cantrill and Nagalingum 2005
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Environment: terrestrialf
Locomotion: stationaryf
Diet: C3 autotrophf
Vision: blindf
Created: 2023-03-25 00:24:44
Modified: 2023-03-25 00:24:44
Source: f = family
Reference: Stockmans 1968

Age range: Late/Upper Albian or 105.30000 to 99.60000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Albian105.3 - 99.6Antarctica Sphenopteris sanjuliensis (150511)