| A NEW GRAPTOLITE, INTERMEDIATE BETWEEN THE TUBOIDEA AND THE CAMAROIDEA |
| Acta Palaeontologica Polonica 2001, 46, 3, 367-376 |
| A new tuboid graptolite, Camarotubus graptocamaraeformis gen. et sp.n., is described from a calcareous erratic boulder of middle Ordovician (Caradoc?) age from Poland. This encrusting form combines characters of both the tuboid and the camaroid graptolites, and is regarded as a purely morphological intermediate between them. This finding supports Kozłowski's (1949) concept of a close phylogenetic relationship between the orders Tuboidea and Camaroidea. |
 |
|
 |
| GRAPTOLITE NET edited by Piotr Mierzejewski, the Count of Calmont and Countess Maja Anna Korwin-Kossakowska 2002-2004 |
 |
 |
 |
 |
| SEM micrographs of Camarotubus graptocamaraeformis. |