| Nature of Graptovermids (Graptolithina) Piotr Mierzejewski Acta Palaeontologica Polonica 33, 3, 267-272 |
Abstract, p. 267:
Graptovermids are redefined as resting terminal
portions of unknown encrusting graptolites
stolothecae. Presumably, their biological significance
was an adaptation allowing to survive the periods of
unfavourable or adverse conditions. SEM observations
are made on Graptovermis intestinalis Kozlowski,
1949 from the lower Ordovician of Ă–land (Sweden).
Graptovermids are redefined as resting terminal
portions of unknown encrusting graptolites
stolothecae. Presumably, their biological significance
was an adaptation allowing to survive the periods of
unfavourable or adverse conditions. SEM observations
are made on Graptovermis intestinalis Kozlowski,
1949 from the lower Ordovician of Ă–land (Sweden).
| Graptovermis intestinalis Kozlowski, 1949, upper Tremadoc, Poland (from Kozlowski) |
