Lusaticutis upchurchii

Name

Lusaticutis upchurchii

Rank

Species

Generic Name

[Genus] Lusaticutis

Authors (Pub.)

Tewari R. Mandaokar B. D. Mehrotra R. C.  

Publication

Fossil cuticles from the Oligocene sediments of northeast India [2005/12]

Journal

Journal of applied bioscience

Volume

31

Issue

2

Page number

95

Year

2005

Fossil Status

leaves (cuticles)

Stratigraphy

Chattian

Strat. comment

Tikak Parbat Formation

Location

Makum Coalfield, Tinsukia District, Assam, India

Paleoregion

Eurasia (Indostan)

Data for Holotypus

Repository

Birbal Sahni Institute of Palaeosciences, Lucknow, India

Repository Number

Slide No. BSIP 12996

Num

3: 1-6

Pub.

Fossil cuticles from the Oligocene sediments of northeast India [2005/12]

Diagnosis

Cuticle hypostomatic, cells of upper surface of lamina undifferentiated into vein and mesh areas, cells polygonal to variously shaped, irregularly arranged, 20-30 x 10-20 um in size; anticlinal walls straight to arched, 5 um wide, surface walls papillate, each cell showing numerous small papillae measuring 1-2.5 um in diameter; unicellular trichome bases occasionally present, measuring 12.5-17.5 x 10-15 um in diameter; cells of lower surface of lamina similar to those of upper surface, 15-30 x 12.5-15 um in size, anticlinal walls 2.5-5 um wide, surface walls papillate, each cell showing numerous small papillae measuring 1-2.5 um in diameter; unicellular trichome bases of same dimensions as on upper surface occasionally present; stomata ovai, anomocytic, superficial, 20 x 10-15 um in size, irregular in distibution and orientation, guard cells kidney shaped, 20 x 5 um in size, poral wall of guard cell apparently cutinised, stomatal slit biconvex, 15-20 x 0.5-5 um in size, stomatal index varying from 6.2 to 8.4.