Article contents
III.—On scottish Monograptidæ
Published online by Cambridge University Press: 01 May 2009
Extract
Polypary four or five inches in length, straight or very slightly curved, attaining a maximum diameter of one-twelfth of an inch. Hydrothecæ short and broad cups, with subquadrangular section, 20 to 24 to the inch, without overlap, inclined at an angle of about 45°; outer edge convex distally, proximally impressed; apertural margin deep, concave, at right angles to the general direction of the theca; denticle triangular and inornate.
- Type
- Original Articles
- Information
- Copyright
- Copyright © Cambridge University Press 1876
References
page 358 note 1 Geol. Mag. Vol. V. p. 127.Google Scholar
page 358 note 2 Defense de Colonies, part iv. p. 25.
- 6
- Cited by