Ganoid scales

Autor:

British Museum

Credit:

Guide to the collection of fossil fishes in the Department of Geology and Palæontology, British Museum (Natural History) Page 27: Fig. 43. 1885, Woodfall and Kinder, London.

Krótki link:

https://plwiki.pl/b/8ce6f

źródło:

Wikimedia Commons

Wymiary:

452 x 288 Pixel (134097 Bytes)

Opis:

Ganoid scales of the Carboniferous fish, Amblypterus striatus. (a) shows the outer surface of four of the scales, and (b) shows the inner surface if two of the scales. Each of the rhomboidal ganoid scales of Amblypterus has a ridge on the inner surface which is produced at one end into a projecting peg which fits into a notch in the next scale, similar to the manner in which tiles are pegged together on the roof of a house.

Licencja:

Public domain