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Tubicamara coriacea Kozłowski, 1949
The camaroid graptolite Tubicamara coriacea
Kozłowski was described from the upper
Tremadocian cherts of Wysoczki, Świętokrzyskie
Mts (=Holy Cross Mts.), Central Poland.

All specimens of this graptolite found up to now
are tiny fragments of rhabdosomes composed of
a few autothecae embedded in abundant
extracamaral tissue. The autothecae are sharply
differentiated into two parts, a camara (an
inflated basal vesicle) and a funnel-like collum (a
free tube corresponding to the free portion of
the autothecae in Tuboidea) with ventral
apertural process. There are no traces of
bithecae in
T. coriacea.

The genus
Tubicamara has been assigned by
Bulman (1955) to the family Cysticamaridae.


Bulman, O.M.B.1955. Graptolithina.
In: Moore, R.
V. (ed.): Treatise on Invertebrate Paleontology
V, 1-101. New York, Lawrence, Kansas.

Kozłowski, R. 1949. Les Graptolithes et quelques
nouveaux groupes d'animaux du Tremadoc de la
Pologne. -
Paleontologia Polonica 3, 1-235.

Urbanek, A. and Mierzejewski, P. 1991.
The fine
structure of a camaroid graptolite. - Lethaia 24,


To the right is the holotype of
in  three views. From  R. Kozłowski.


Fine structure of Tubicamara coriacea.

Xenotheka klinostoma Eisenack - a camaroid

Autothecal morphs and dormancy in a camaroid

Verrucose fabric in camaroid graptolites

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