They are represented by undetermined placoderms, acanthodians and sarcopterygians
222) Lophosteus the earliest osteichthyan which cannot be placed among either the actinopterygians or sarcopterygians.
He decided that such a fin spine could not belong to an actinopterygian or to a sarcopterygian, but had a similar shape with some acanthodian spines.
distinctum Valiukevicius; and the sarcopterygians
the heterosteid Tollichthys, and several sarcopterygians.
The Early Devonian fish assemblages include, besides the dominating amphiaspidids, also cephalaspids, different placoderms, acanthodians, sarcopterygians (porolepiforms) and actinopterygians.
acanthodians Devononchus tenuispinus Gross and Homacanthus sveteensis Gross (were not found in 2009 and 2010), sarcopterygians Holoptychius cf.
The MNI of Phyllolepis tolli and Devononchus tenuispinus (see Tables 2, 3) is only slightly smaller than that of the antiarch placoderms (Bothriolepis), whereas other taxa, constituted by Dunkleosteus, Chelyophorus and sarcopterygians, are represented by minor MNI, but the actual number of remains varies greatly from only one specimen of Dunkleosteus sp.
The Middle Devonian fishes (placoderms, acanthodians, sarcopterygians, actinopterygians) were identified to a generic or higher level.
Recently sarcopterygian remains belonging to a tristichopterid were identified in the Abava Mb in Estonia (I.
All samples contained remains of various vertebrates, including psammosteid heterostracans, placoderms, numerous acanthodians, sarcopterygians
and actinopterygians (Marss et al.
Vertebrates described in earlier studies include psammosteids (Obruchev & Mark-Kurik 1965; Mark-Kurik 1968, 1995), placoderms (Karatajute-Talimaa 1963), acanthodians (Valiukevicius 1998), and sarcopterygians