1.Pterocladus antiquus- a algal fossil (very exclusive) 2.Bambusiculmus tirapensis-Bamboo stem fossil from india 3.Bambusiculmus makmensis-Bamboo stem fossil from india 4.Bambusium deomarense-Bamboo leaf fossil from india 5.Bambusium arunachalense-Bamboo leaf fossil from india 6.Azolla keuja-Pteridophyte fossil from argentina 7.Palmoxylon deoriensis-Stem of palm fossil from india 8.Khasurtyhallus monosolenioides-Thalloid liverwort fossil from Russia 9.Paleaethallus squarossus- bryophyte fossil from Russia 10.Kulindobryum taylocloides-Moss capsule fossil from Russia 11.Hirandubia cupressoides-conifer fossil from india 12.Podocarpospermum podocarpoides-conifer fossil from india

1. AssignmentSubmitted by
Submitted to
Prof Punita Parikh
SEM 1 M.Sc.(Botany) 2020-21
Subject : New records of
Plant Fossils
The Maharaja Sayajirao University of
Baroda
BOT 2102
UNIT III : Gymnosperms
Nurulhasan Khatri

2. Pterocladusantiquus(Tangetal.2020)
Fossil : Green alga (seaweed), 2 mm long, multicellular, branched
Fossil type : Impression on rock
Site : An area of dry-land(formerly ocean), near the city of Dalian in the Liaonin
Province of Northern China.
a) Fossil b) An illustration how live
plant likely appeared 1
billion years ago

3. Bambusiculmustirapensis
(Srivastavaetal.2019)
a) Late Oligocene
period, 25 million
years old Fossil
Bambusiculmusmakmensis
(Srivastavaetal.2019)
Fossil : Bamboo stem
Fossil type : Compression
Site : Tirap mine
Makul coalfield in Assam, India
Fossil : Bamboo stem
Fossil type : Impression
Site : Tirap mine
Makul coalfield in Assam, India
b) Late Oligocene
period, 25 million
years old Fossil
Species show
bamboos come
to Asia from
India and not
from Europe

4. Bambusiumdeomarense (Srivastava
etal.2019)
Bambusiumarunachalense
(Srivastavaetal.2019)
a) In late miocene to
pliocene sediments,
11-3 million years
old Fossil
c) In late miocene to
pliocene sediments,
11-3 million years
old Fossil
Fossil : Bamboo leaf
Fossil type : Impression
Site : Doimara
region Arunachal pradesh, India
Fossil : Bamboo leaf
Fossil type : Impression
Site : Doimara
region Arunachal pradesh, India
b) Illustration of the
extinct species
b) Illustration of the
extinct species

5. Fossil : Sporophyte of a pteridophyte
Fossil type : Compression (flat, laminated to thin bedded mudstone diposites)
Site : Late Cretaceous and Paleocene period Salamanca formation in southwestern
Chuburt Province, Patagonia, Argentina
a) Shoot with stem and
lobed leaves Fossil
b) Sporophyte showing
root Fossil
Azollakeuja(Hermsenetal.2019)
c) Microsporangiate And
megasporangiate sori
attached to stem Fossil

6. Palmoxylondeoriensis(Khanetal.2019)
Fossil : Stem of palm
Fossil type : Permineralization (cast)
Site : Late Cretaceous-early Paleocene period, sediments of Deccan intratrappen
beds of Deroi village in Dindori district, Madhya pradesh, India)
Fossil

7. Fossil : Complex thalloid Liverwort (Bryophyte)
Fossil type : Compression (preserved in siltstones & mudstones)
Site : Lower Cretaceous deposits of Transbaikalia region, Russia
26 mm long thallus Fossil
Khasurtythallusmonosolenioides(Mamontovetal.2019)

8. Paleaethallussquarrosus(Mamontovetal.2019)
Fossil : Thalloid Bryophyte
Fossil type : Compression (preserved in siltstones & mudstones) & somewhat coalified
Site : Upper Cretaceous deposits of Transbaikalia region, Russia
Thallus Fossils With abundant
squarrose scales

9. Fossil : Capsule of Moss (form genus novel
Kulindobryum)
Fossil type : Compression (preserved in siltstones &
mudstones)
Site : Middle or Upper Jurassic, Ukurei Formation
(formerly Kulinda Formation) Transbaikalia,
Russia
Dispersed moss capsules
Fossils, some have attached
calyprae
Kulindobryumtaylorioides(Mamontovetal.2019)

10. Hirandubiacupressoides(Ghoshetal.2018)
Fossil : Conifer (Family : Cupressaceae) , sterile and fertile shoots, detached leaves
and dispersed seeds
Fossil type : Silicified cast
Site : Early cretaceous, intertrappen sediments of the Rajmahal formation,
Rajmahal basin in Jharkhand, India
a) Sterile and fertile shoot
fossils
b) Seed fossils

11. Podocarpospermumpodocarpoides(Ghoshetal.2018)
Fossil : Conifer (Family :Podocarpaceae) , sterile and fertile shoots, detached leaves
and dispersed seeds
Fossil type : Silicified cast
Site : Early cretaceous, intertrappen sediments of the Rajmahal formation,
Rajmahal basin in Jharkhand, India
a) Sterile shoot fossil b) Fertile shoot fossil c) Seed bearing fossil

12. Thank You
Rajmahal traps,Jharkhand,India