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Pseudocycas

Bennettitales

Taxonomy
Pseudocycas was named by Nathorst (1907). It is not extant. Its type is Pseudocycas insignis.

It was assigned to Cycadophyta by Andrews (1970); and to Bennettitales by Lapasha and Miller (1985) and Watson and Sincock (1992).

Species
P. douglasii, P. insignis (type species)
Species lacking formal opinion data
P. unjiga

Synonymy list
YearName and author
1907Pseudocycas Nathorst p. 3 figs. Pl. 1, figs. 1-5; Pl. 2, figs. 1-9; Pl.
1970Pseudocycas Andrews
1985Pseudocycas Lapasha and Miller
1992Pseudocycas Watson and Sincock

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RankNameAuthor
kingdomPlantae
phylumSpermatophyta
phylumPinophyta
RankNameAuthor
orderBennettitalesBessey 1910
genusPseudocycasNathorst 1907

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.

G. †Pseudocycas Nathorst 1907
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†Pseudocycas douglasii Lapasha and Miller 1985
†Pseudocycas insignis Nathorst 1907
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available

Age range: base of the Bathonian to the top of the Cenomanian or 168.30000 to 93.90000 Ma

Collections (43 total)


Time interval Ma Country or state Original ID and collection number
Middle Jurassic174.7 - 161.5China (Nei Mongol) P. sp. 1 (29573)
Bathonian168.3 - 166.1Russian Federation P. sp. 1 (30773) P. sp. 1, P. sp. 2 (30572 30678)
Bathonian168.3 - 166.1Georgia P. sp. 1 (30107 30114 30115)
Callovian166.1 - 163.5Georgia P. sp. 1 (30109 30111)
Callovian166.1 - 163.5Russian Federation P. sp. 1 (30838)
Callovian - Oxfordian166.1 - 157.3Georgia P. sp. 1 (30104)
Late/Upper Jurassic161.5 - 145.0China (Heilongjiang) P. sp. 1 (29616 29947)
Tithonian152.1 - 145.0Russian Federation P. sp. 1 (30733)
Tithonian - Berriasian152.1 - 139.8Russian Federation P. sp. 1 (30676 30677)
Early/Lower Cretaceous145.0 - 100.5Canada (British Columbia) P. sp., P. unjiga (31384)
Hauterivian132.9 - 129.4Portugal P. tenuisectus (73497)
Aptian125.0 - 113.0Canada (British Columbia) P. unjiga (24887)
Late/Upper Aptian122.46 - 113.0USA (Montana) P. douglasii (21130 21133 21136 21138 21140 21151 21152 21154 21156 21158)
Albian113.0 - 100.5Canada (British Columbia) P. unjiga (24892)
Albian113.0 - 100.5Canada (Alberta) P. unjiga (24838)
Albian - Cenomanian113.0 - 93.9USA (Alaska) P. sp. (34386)
Early/Lower Albian - Middle Albian112.03 - 105.3Canada (British Columbia) P. sp. (136786 136793)
Early/Lower Cenomanian - Cenomanian99.6 - 93.9Canada (British Columbia) P. unjiga (32030)
Early/Lower Cenomanian99.6 - 93.5Canada (British Columbia) P. unjiga (31884 31904 31906 31912 32029 35008 35011 35068)