char = N;code = 78 char = u;code = 117 char = m;code = 109 char = b;code = 98 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = a;code = 97 char = r;code = 114 char = r;code = 114 char = a;code = 97 char = n;code = 110 char = g;code = 103 char = e;code = 101 char = m;code = 109 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = e;code = 101 char = x;code = 120 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = o;code = 111 char = c;code = 99 char = u;code = 117 char = l;code = 108 char = a;code = 97 char = r;code = 114 char = ;code = 32 char = m;code = 109 char = u;code = 117 char = s;code = 115 char = c;code = 99 char = l;code = 108 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = i;code = 105 char = m;code = 109 char = i;code = 105 char = t;code = 116 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = ;code = 32 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = t;code = 116 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = t;code = 116 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = s;code = 115 char = :;code = 58 char = ;code = 32 char = e;code = 101 char = v;code = 118 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = ;code = 32 char = f;code = 102 char = r;code = 114 char = o;code = 111 char = m;code = 109 char = ;code = 32 char = e;code = 101 char = x;code = 120 char = t;code = 116 char = i;code = 105 char = n;code = 110 char = c;code = 99 char = t;code = 116 char = ;code = 32 char = p;code = 112 char = l;code = 108 char = a;code = 97 char = c;code = 99 char = o;code = 111 char = d;code = 100 char = e;code = 101 char = r;code = 114 char = m;code = 109 char = ;code = 32 char = f;code = 102 char = i;code = 105 char = s;code = 115 char = h;code = 104 char = e;code = 101 char = s;code = 115 char = .;code = 46 result sql = Number and arrangement of extraocular muscles in primitive gnathostomes: evidence from extinct placoderm fishes.
Number and arrangement of extraocular muscles in primitive gnathostomes: evidence from extinct placoderm fishes.char = E;code = 69 char = x;code = 120 char = c;code = 99 char = e;code = 101 char = p;code = 112 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = b;code = 98 char = r;code = 114 char = a;code = 97 char = i;code = 105 char = n;code = 110 char = c;code = 99 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = e;code = 101 char = r;code = 114 char = v;code = 118 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = s;code = 115 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = ;code = 32 char = D;code = 68 char = e;code = 101 char = v;code = 118 char = o;code = 111 char = n;code = 110 char = i;code = 105 char = a;code = 97 char = n;code = 110 char = ;code = 32 char = p;code = 112 char = l;code = 108 char = a;code = 97 char = c;code = 99 char = o;code = 111 char = d;code = 100 char = e;code = 101 char = r;code = 114 char = m;code = 109 char = ;code = 32 char = f;code = 102 char = i;code = 105 char = s;code = 115 char = h;code = 104 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = p;code = 112 char = e;code = 101 char = r;code = 114 char = m;code = 109 char = i;code = 105 char = t;code = 116 char = s;code = 115 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = t;code = 116 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = m;code = 109 char = u;code = 117 char = s;code = 115 char = c;code = 99 char = l;code = 108 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = c;code = 99 char = r;code = 114 char = a;code = 97 char = n;code = 110 char = i;code = 105 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = n;code = 110 char = e;code = 101 char = r;code = 114 char = v;code = 118 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = t;code = 116 char = r;code = 114 char = o;code = 111 char = l;code = 108 char = l;code = 108 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = e;code = 101 char = y;code = 121 char = e;code = 101 char = ;code = 32 char = m;code = 109 char = o;code = 111 char = v;code = 118 char = e;code = 101 char = m;code = 109 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = .;code = 46 char = ;code = 32 char = P;code = 80 char = l;code = 108 char = a;code = 97 char = c;code = 99 char = o;code = 111 char = d;code = 100 char = e;code = 101 char = r;code = 114 char = m;code = 109 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = l;code = 108 char = y;code = 121 char = ;code = 32 char = j;code = 106 char = a;code = 97 char = w;code = 119 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = v;code = 118 char = e;code = 101 char = r;code = 114 char = t;code = 116 char = e;code = 101 char = b;code = 98 char = r;code = 114 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = i;code = 105 char = o;code = 111 char = r;code = 114 char = /;code = 47 char = p;code = 112 char = o;code = 111 char = s;code = 115 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = i;code = 105 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = o;code = 111 char = b;code = 98 char = l;code = 108 char = i;code = 105 char = q;code = 113 char = u;code = 117 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = j;code = 106 char = a;code = 97 char = w;code = 119 char = l;code = 108 char = e;code = 101 char = s;code = 115 char = s;code = 115 char = ;code = 32 char = l;code = 108 char = a;code = 97 char = m;code = 109 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = y;code = 121 char = ,;code = 44 char = ;code = 32 char = b;code = 98 char = u;code = 117 char = t;code = 116 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = s;code = 115 char = a;code = 97 char = m;code = 109 char = e;code = 101 char = ;code = 32 char = f;code = 102 char = u;code = 117 char = n;code = 110 char = c;code = 99 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = s;code = 115 char = u;code = 117 char = p;code = 112 char = e;code = 101 char = r;code = 114 char = i;code = 105 char = o;code = 111 char = r;code = 114 char = /;code = 47 char = i;code = 105 char = n;code = 110 char = f;code = 102 char = e;code = 101 char = r;code = 114 char = i;code = 105 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = o;code = 111 char = b;code = 98 char = l;code = 108 char = i;code = 105 char = q;code = 113 char = u;code = 117 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = o;code = 111 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = t;code = 116 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = t;code = 116 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = s;code = 115 char = .;code = 46 char = ;code = 32 char = E;code = 69 char = v;code = 118 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = u;code = 117 char = p;code = 112 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = s;code = 115 char = e;code = 101 char = v;code = 118 char = e;code = 101 char = n;code = 110 char = ;code = 32 char = e;code = 101 char = x;code = 120 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = o;code = 111 char = c;code = 99 char = u;code = 117 char = l;code = 108 char = a;code = 97 char = r;code = 114 char = ;code = 32 char = m;code = 109 char = u;code = 117 char = s;code = 115 char = c;code = 99 char = l;code = 108 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = s;code = 115 char = u;code = 117 char = g;code = 103 char = g;code = 103 char = e;code = 101 char = s;code = 115 char = t;code = 116 char = s;code = 115 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = a;code = 97 char = t;code = 116 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = y;code = 121 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = i;code = 105 char = m;code = 109 char = i;code = 105 char = t;code = 116 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = ;code = 32 char = n;code = 110 char = u;code = 117 char = m;code = 109 char = b;code = 98 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = j;code = 106 char = a;code = 97 char = w;code = 119 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = v;code = 118 char = e;code = 101 char = r;code = 114 char = t;code = 116 char = e;code = 101 char = b;code = 98 char = r;code = 114 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = s;code = 115 char = .;code = 46 char = ;code = 32 char = T;code = 84 char = w;code = 119 char = o;code = 111 char = ;code = 32 char = m;code = 109 char = u;code = 117 char = s;code = 115 char = c;code = 99 char = l;code = 108 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = n;code = 110 char = e;code = 101 char = r;code = 114 char = v;code = 118 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = y;code = 121 char = ;code = 32 char = c;code = 99 char = r;code = 114 char = a;code = 97 char = n;code = 110 char = i;code = 105 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = n;code = 110 char = e;code = 101 char = r;code = 114 char = v;code = 118 char = e;code = 101 char = ;code = 32 char = 6;code = 54 char = ;code = 32 char = s;code = 115 char = u;code = 117 char = g;code = 103 char = g;code = 103 char = e;code = 101 char = s;code = 115 char = t;code = 116 char = ;code = 32 char = h;code = 104 char = o;code = 111 char = m;code = 109 char = o;code = 111 char = l;code = 108 char = o;code = 111 char = g;code = 103 char = i;code = 105 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = l;code = 108 char = a;code = 97 char = m;code = 109 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = y;code = 121 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = e;code = 101 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = p;code = 112 char = o;code = 111 char = d;code = 100 char = s;code = 115 char = .;code = 46 char = ;code = 32 char = I;code = 73 char = f;code = 102 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = e;code = 101 char = x;code = 120 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = ;code = 32 char = m;code = 109 char = u;code = 117 char = s;code = 115 char = c;code = 99 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = a;code = 97 char = c;code = 99 char = q;code = 113 char = u;code = 117 char = i;code = 105 char = r;code = 114 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = y;code = 121 char = ;code = 32 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = t;code = 116 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = t;code = 116 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = n;code = 110 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = u;code = 117 char = s;code = 115 char = ,;code = 44 char = ;code = 32 char = D;code = 68 char = e;code = 101 char = v;code = 118 char = o;code = 111 char = n;code = 110 char = i;code = 105 char = a;code = 97 char = n;code = 110 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = s;code = 115 char = s;code = 115 char = i;code = 105 char = l;code = 108 char = s;code = 115 char = ;code = 32 char = s;code = 115 char = h;code = 104 char = o;code = 111 char = w;code = 119 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = a;code = 97 char = t;code = 116 char = ;code = 32 char = i;code = 105 char = t;code = 116 char = ;code = 32 char = h;code = 104 char = a;code = 97 char = d;code = 100 char = ;code = 32 char = a;code = 97 char = ;code = 32 char = s;code = 115 char = i;code = 105 char = m;code = 109 char = i;code = 105 char = l;code = 108 char = a;code = 97 char = r;code = 114 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = s;code = 115 char = e;code = 101 char = r;code = 114 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = a;code = 97 char = b;code = 98 char = o;code = 111 char = v;code = 118 char = e;code = 101 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = h;code = 104 char = i;code = 105 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = e;code = 101 char = y;code = 121 char = e;code = 101 char = s;code = 115 char = t;code = 116 char = a;code = 97 char = l;code = 108 char = k;code = 107 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = b;code = 98 char = o;code = 111 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = p;code = 112 char = l;code = 108 char = a;code = 97 char = c;code = 99 char = o;code = 111 char = d;code = 100 char = e;code = 101 char = r;code = 114 char = m;code = 109 char = s;code = 115 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = a;code = 97 char = s;code = 115 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = o;code = 111 char = s;code = 115 char = t;code = 116 char = e;code = 101 char = i;code = 105 char = c;code = 99 char = h;code = 104 char = t;code = 116 char = h;code = 104 char = y;code = 121 char = a;code = 97 char = n;code = 110 char = s;code = 115 char = .;code = 46 char = <;code = 60 char = b;code = 98 char = r;code = 114 char = /;code = 47 char = >;code = 62 result sql = Exceptional braincase preservation in some Devonian placoderm fishes permits interpretation of muscles and cranial nerves controlling eye movement. Placoderms are the only jawed vertebrates with anterior/posterior obliques as in the jawless lamprey, but with the same function as the superior/inferior obliques of other gnathostomes. Evidence of up to seven extraocular muscles suggests that this may be the primitive number for jawed vertebrates. Two muscles innervated by cranial nerve 6 suggest homologies with lampreys and tetrapods. If the extra muscle acquired by gnathostomes was the internal rectus, Devonian fossils show that it had a similar insertion above and behind the eyestalk in both placoderms and basal osteichthyans.
Publication: Biol. Lett. 2008 Feb 23 ;4(1)::110-4.
Publication Date: 2008 Feb 23
Study Author(s): Young, Gavin C;
Institution: Department of Earth and Marine Sciences, Australian National University, Canberra, Australian Capital Territory 0200, Australia.
[email protected]
Shortcut link to this study:
Exceptional braincase preservation in some Devonian placoderm fishes permits interpretation of muscles and cranial nerves controlling eye movement. Placoderms are the only jawed vertebrates with anterior/posterior obliques as in the jawless lamprey, but with the same function as the superior/inferior obliques of other gnathostomes. Evidence of up to seven extraocular muscles suggests that this may be the primitive number for jawed vertebrates. Two muscles innervated by cranial nerve 6 suggest homologies with lampreys and tetrapods. If the extra muscle acquired by gnathostomes was the internal rectus, Devonian fossils show that it had a similar insertion above and behind the eyestalk in both placoderms and basal osteichthyans.