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Tsukada davidiifolia

Angiospermae - Cornales - Nyssaceae

Taxonomy
Tsukada davidiifolia was named by Wolfe and Wehr (1987). Its type specimen is Holotype. UW71095, Paratypes. \W 39187, 71081; UCMP 9302 (counterpart of UW39187)., a leaf, and it is a compression fossil. Its type locality is Republic Locality 8428, which is in a Lutetian/Bartonian lacustrine horizon in the Klondike Mountain Formation of Washington. It is the type species of Tsukada.

Synonymy list
YearName and author
1987Tsukada davidiifolia Wolfe and Wehr p. 21

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RankNameAuthor
kingdomPlantae
phylumSpermatophyta
classAngiospermae
—Mesangiosperms
—EudicotsDoyle and Hotton 1991
—CoreeudicotsThe Angiosperm Phylogeny Group 2009
RankNameAuthor
—Superasterids
—Asterids
orderCornalesLink 1829
familyNyssaceae
genusTsukada
speciesdavidiifolia

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.

†Tsukada davidiifolia Wolfe and Wehr 1987
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Diagnosis
ReferenceDiagnosis
J. A. Wolfe and W. Wehr 1987Leaves simple; venation pinnate; secondary veins craspedodromous, broadly curving apically; intersecondary veins absent; tertiary veins acute to secondary veins (AO pattern), some branched; axillary tertiary veins tending to be parallel to other intercostal tertiaries; quaternaries branching, forming a coarse, dominantly quadrangular reticu- lum; three most basal pairs of secondary veins crowd- ed near base, giving an almost actinodromous ap- pearance; external secondary veins more numerous on three most basal pairs of secondary veins than on more apical pairs; external secondary veins cras- pedodromous to camptodromous; teeth entered me- dially and with lateral bracing veins that loop; weakly developed sinal knot; teeth at least one per secondary vein; serration type broadly A-l; ill-defined glandu- lar area on apex of teeth.
Measurements
No measurements are available
Diet: "photoautotroph"p
Created: 2011-07-22 00:04:15
Modified: 2011-07-21 09:04:15
Source: p = phylum
Reference: Kiessling 2009

Age range: base of the Ypresian to the top of the Bartonian or 56.00000 to 37.71000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Ypresian56.0 - 48.07Canada (British Columbia) Tsukada davidiifolia (227994)
Lutetian - Bartonian48.07 - 37.71USA (Washington) Tsukada davidiifolia (type locality: 11537)