Abstract
Two distinctive new species of Glossopteris, G. schopfii Pigg sp. nov., are described from the central Transantarctic Mountains, Antarctica. These new species represent the first species of Glossopteris based on internal anatomy. Glossopteris schopfii is characterized by narrow, elongate meshes, bundle sheath fibers, prominent phloem lacunae, papillar epidermal cells with straight margins and simple, longitudinally-oriented stomata. In contrast, G. skaarensis has broad polygonal meshes, a distinctive hypodermis, epidermal cells with sinuous margins and irregularly distributed, sunken stomata. These stomata are surrounded by a well-defined ring of subsidiary cells with beak-like papillae. The variety of anatomical detail demonstrated by these forms illustrates the diverse nature of glossopterid-bearing plants and underscores the value of permineralized peat to the study of Gondwana plants.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 105-127 |
| Number of pages | 23 |
| Journal | Review of Palaeobotany and Palynology |
| Volume | 66 |
| Issue number | 1-2 |
| DOIs | |
| State | Published - Nov 1 1990 |
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ASJC Scopus subject areas
- Palaeontology
- Earth and Planetary Sciences(all)
- Environmental Science(all)
Cite this
Anatomically preserved Glossopteris foliage from the central Transantarctic Mountains. / Pigg, Kathleen.
In: Review of Palaeobotany and Palynology, Vol. 66, No. 1-2, 01.11.1990, p. 105-127.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Anatomically preserved Glossopteris foliage from the central Transantarctic Mountains
AU - Pigg, Kathleen
PY - 1990/11/1
Y1 - 1990/11/1
N2 - Two distinctive new species of Glossopteris, G. schopfii Pigg sp. nov., are described from the central Transantarctic Mountains, Antarctica. These new species represent the first species of Glossopteris based on internal anatomy. Glossopteris schopfii is characterized by narrow, elongate meshes, bundle sheath fibers, prominent phloem lacunae, papillar epidermal cells with straight margins and simple, longitudinally-oriented stomata. In contrast, G. skaarensis has broad polygonal meshes, a distinctive hypodermis, epidermal cells with sinuous margins and irregularly distributed, sunken stomata. These stomata are surrounded by a well-defined ring of subsidiary cells with beak-like papillae. The variety of anatomical detail demonstrated by these forms illustrates the diverse nature of glossopterid-bearing plants and underscores the value of permineralized peat to the study of Gondwana plants.
AB - Two distinctive new species of Glossopteris, G. schopfii Pigg sp. nov., are described from the central Transantarctic Mountains, Antarctica. These new species represent the first species of Glossopteris based on internal anatomy. Glossopteris schopfii is characterized by narrow, elongate meshes, bundle sheath fibers, prominent phloem lacunae, papillar epidermal cells with straight margins and simple, longitudinally-oriented stomata. In contrast, G. skaarensis has broad polygonal meshes, a distinctive hypodermis, epidermal cells with sinuous margins and irregularly distributed, sunken stomata. These stomata are surrounded by a well-defined ring of subsidiary cells with beak-like papillae. The variety of anatomical detail demonstrated by these forms illustrates the diverse nature of glossopterid-bearing plants and underscores the value of permineralized peat to the study of Gondwana plants.
UR - http://www.scopus.com/inward/record.url?scp=0025628205&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0025628205&partnerID=8YFLogxK
U2 - 10.1016/0034-6667(90)90030-M
DO - 10.1016/0034-6667(90)90030-M
M3 - Article
AN - SCOPUS:0025628205
VL - 66
SP - 105
EP - 127
JO - Review of Palaeobotany and Palynology
JF - Review of Palaeobotany and Palynology
SN - 0034-6667
IS - 1-2
ER -