Holoptychius flemingi Agassiz

Scale bar = 5cm

Description

Middle Devonian, Old Red Sst. & Devonian Lst.
Scat Crag, Elgin
Grampian
Scotland
M3315
Description:

This is a distinctive scale of a lobe finned fish (class; Sarcopterygii, order; Porolepifores). It was from the Sacrcopterygii that all tetrepods (four limbed vertebrates) evolved.
Moore, C.

Classification

Chordata
Gnathostomata
Osteichthyes
Sarcopterygii
Porolepiformes
Holoptychiidae
Holoptychius
flemingi
X