diff --git a/terms/mappings.html b/terms/mappings.html
index 7fa167c..f6a81ad 100644
--- a/terms/mappings.html
+++ b/terms/mappings.html
@@ -67,24 +67,24 @@
             <div class="container-fluid">
                 <nav class="col-sm-3 terms-sidebar">
                     <ul class="nav nav-stacked">
-                        <li><a href="#abcd">ABCD Mappings</a></li>                        
+                        <li><a href="#abcd">ABCD mappings</a></li>                        
                         <li><a href="#abcd-dwcclassic">DwC 1.2 (Classic)</a></li>
                         <li><a href="#abcd-dwcobis">OBIS extension</a></li>
                         <li><a href="#abcd-dwcmanis">DwC 1.21 (MaNIS)</a></li>
                         <li><a href="#abcd-dwcdraft14">DwC 1.4 (Draft Standard)</a></li>
                         <li><a href="#abcd-dwccuratorial">DwC 1.4 Curatorial extension</a></li>
                         <li><a href="#abcd-dwcgeospatial">DwC 1.4 Geospatial extension</a></li>
-                        <li><a href="#abcd-abcdpaleo">DwC 1.4 Paleontology extension</a></li>
-                        <li><a href="#abcd-dwccurrent">Standard DwC (Recommended)</a></li>
+                        <li><a href="#abcd-dwcpaleo">DwC 1.4 Paleontology extension</a></li>
+                        <li><a href="#abcd-dwc">Standard DwC (Recommended)</a></li>
                         <li>&nbsp;</li>
-                        <li><a href="#previous">Previous DwC</a></li>                        
-                        <li><a href="#dwcclassic">DwC 1.2 (Classic)</a></li>
-                        <li><a href="#dwcobis">OBIS extension</a></li>
-                        <li><a href="#dwcmanis">DwC 1.21 (MaNIS)</a></li>
-                        <li><a href="#dwcdraft14">DwC 1.4 (Draft Standard)</a></li>
-                        <li><a href="#dwccuratorial">DwC 1.4 Curatorial extension</a></li>
-                        <li><a href="#dwcgeospatial">DwC 1.4 Geospatial extension</a></li>
-                        <li><a href="#dwcpaleo">DwC 1.4 Paleontology extension</a></li>
+                        <li><a href="#dwc">Standard DwC mappings</a></li>                        
+                        <li><a href="#dwc-dwcclassic">DwC 1.2 (Classic)</a></li>
+                        <li><a href="#dwc-dwcobis">OBIS extension</a></li>
+                        <li><a href="#dwc-dwcmanis">DwC 1.21 (MaNIS)</a></li>
+                        <li><a href="#dwc-dwcdraft14">DwC 1.4 (Draft Standard)</a></li>
+                        <li><a href="#dwc-dwccuratorial">DwC 1.4 Curatorial extension</a></li>
+                        <li><a href="#dwc-dwcgeospatial">DwC 1.4 Geospatial extension</a></li>
+                        <li><a href="#dwc-dwcpaleo">DwC 1.4 Paleontology extension</a></li>
                     </ul>
                 </nav>
                 <div class="col-sm-9">
@@ -92,11 +92,11 @@
                         <h1>Term mappings</h1>
                     </div>
 
-                    <h2 id="abcd">ABCD Mappings</h2>
+                    <h2 id="abcd" class="anchor">ABCD Mappings</h2>
                     <p><strong>Audience</strong>: This document is targeted toward those who wish to understand how the Darwin Core terms are related to the structure of the Access to Biological Collections Data [<a href="http://www.tdwg.org/schemas/abcd/2.06">ABCD</a>] schema.</p>
-                    <p>Before becoming a TDWG standard, the Darwin Core was instantiated and deployed in many different application profiles, all of them based on XML schema. In this document the openly developed and widely used versions of the Darwin Core ([<a href="http://digir.sourceforge.net/schema/conceptual/darwin/2003/1.0/darwin2.xsd">CLASSIC</a>], [<a href="http://digir.sourceforge.net/schema/conceptual/darwin/manis/1.21/darwin2.xsd">MANIS</a>], [<a href="http://iobis.org/obis/obis.xsd">OBIS</a>], [<a href="http://rs.tdwg.org/dwc/tdwg_dw_core.xsd">DRAFT14</a>], [<a href="http://rs.tdwg.org/dwc/tdwg_dw_curatorial.xsd">CURATORIAL</a>], [<a href="http://rs.tdwg.org/dwc/tdwg_dw_geospatial.xsd">GEOSPATIAL</a>]) are each compared (mapped conceptually) to the Access to Biological Collections Data [<a href="http://www.tdwg.org/schemas/abcd/2.06">ABCD</a>] schema. Each historical version is mapped in a separate table and can be referenced quickly from the index in <a href="#mappings">Mappings</a> section. Each element in each Darwin Core versions is mapped to the one or more xpath designations of the equivalent element(s) in the most current version of ABCD. <a id="mappings" name="mappings&quot;"></a></p>
+                    <p>Before becoming a TDWG standard, the Darwin Core was instantiated and deployed in many different application profiles, all of them based on XML schema. In this document the openly developed and widely used versions of the Darwin Core ([<a href="http://digir.sourceforge.net/schema/conceptual/darwin/2003/1.0/darwin2.xsd">CLASSIC</a>], [<a href="http://digir.sourceforge.net/schema/conceptual/darwin/manis/1.21/darwin2.xsd">MANIS</a>], [<a href="http://iobis.org/obis/obis.xsd">OBIS</a>], [<a href="http://rs.tdwg.org/dwc/tdwg_dw_core.xsd">DRAFT14</a>], [<a href="http://rs.tdwg.org/dwc/tdwg_dw_curatorial.xsd">CURATORIAL</a>], [<a href="http://rs.tdwg.org/dwc/tdwg_dw_geospatial.xsd">GEOSPATIAL</a>]) are each compared (mapped conceptually) to the Access to Biological Collections Data [<a href="http://www.tdwg.org/schemas/abcd/2.06">ABCD</a>] schema. Each historical version is mapped in a separate table and can be referenced quickly from the index in Mappings section. Each element in each Darwin Core versions is mapped to the one or more xpath designations of the equivalent element(s) in the most current version of ABCD.</p>
 
-                    <h3 id="abcd-dwcclassic">Darwin Core 1.2 (Classic)</h3>
+                    <h3 id="abcd-dwcclassic" class="anchor">Darwin Core 1.2 (Classic)</h3>
                     <table class="table table-bordered table-condensed">
                         <tbody>
                             <tr><td>Darwin Core 1.2 term</td><td>ABCD xpath</td></tr>
@@ -151,7 +151,7 @@
                         </tbody>
                     </table>
                       
-                    <h3 id="abcd-dwcobis">OBIS extension</h3>
+                    <h3 id="abcd-dwcobis" class="anchor">OBIS extension</h3>
                     <table class="table table-bordered table-condensed">
                         <colgroup><col /><col /></colgroup>
                         <tbody>
@@ -186,7 +186,7 @@
                         </tbody>
                     </table>
                       
-                    <h3 id="abcd-dwcmanis">Darwin Core 1.21 (MaNIS/HerpNet/ORNIS/FishNet2)</h3>
+                    <h3 id="abcd-dwcmanis" class="anchor">Darwin Core 1.21 (MaNIS/HerpNet/ORNIS/FishNet2)</h3>
                     <table class="table table-bordered table-condensed">
                         <tbody>
                             <tr><td>Darwin Core 1.21 term</td><td>ABCD xpath</td></tr>
@@ -259,7 +259,7 @@
                         </tbody>
                     </table>
                       
-                    <h3 id="abcd-dwcdraft14">Darwin Core 1.4 (Draft Standard)</h3>
+                    <h3 id="abcd-dwcdraft14" class="anchor">Darwin Core 1.4 (Draft Standard)</h3>
                     <table class="table table-bordered table-condensed">
                         <tbody>
                             <tr><td>Darwin Core 1.4 term</td><td>ABCD xpath</td></tr>
@@ -312,7 +312,7 @@
                         </tbody>
                     </table>
                       
-                    <h3 id="abcd-dwccuratorial">Darwin Core 1.4 Curatorial extension</h3>
+                    <h3 id="abcd-dwccuratorial" class="anchor">Darwin Core 1.4 Curatorial extension</h3>
                     <table class="table table-bordered table-condensed">
                         <tbody>
                             <tr><td>Darwin Core 1.4 Curatorial term</td><td>ABCD xpath</td></tr>
@@ -335,7 +335,7 @@
                         </tbody>
                     </table>
                       
-                    <h3 id="abcd-dwcgeospatial">Darwin Core 1.4 Geospatial extension</h3>
+                    <h3 id="abcd-dwcgeospatial" class="anchor">Darwin Core 1.4 Geospatial extension</h3>
                     <table class="table table-bordered table-condensed">
                         <tbody>
                             <tr><td>Darwin Core 1.4 Geospatial term</td><td>ABCD xpath</td></tr>
@@ -357,7 +357,7 @@
                         </tbody>
                     </table>
                       
-                    <h3 id="abcd-abcdpaleo">Darwin Core 1.4 Paleontology Extension</h3>
+                    <h3 id="abcd-dwcpaleo" class="anchor">Darwin Core 1.4 Paleontology Extension</h3>
                     <table class="table table-bordered table-condensed">
                         <tbody>
                             <tr><td>Darwin Core 1.4 Paleontology term</td><td>ABCD xpath</td></tr>
@@ -381,7 +381,7 @@
                         </tbody>
                     </table>
                       
-                    <h3 id="abcd-dwccurrent">Standard Darwin Core (Recommended)</h3>
+                    <h3 id="abcd-dwc" class="anchor">Standard Darwin Core (Recommended)</h3>
                     <table class="table table-bordered table-condensed">
                         <tbody>
                             <tr><td>Darwin Core Recommended term</td><td>ABCD xpath</td></tr>
@@ -585,11 +585,11 @@
                     
                     <hr>
 
-                    <h2 id="previous">Standard Darwin Core Mappings</h2>
+                    <h2 id="dwc" class="anchor">Standard Darwin Core Mappings</h2>
                     <p><strong>Audience</strong>: This document is targeted toward those who wish to understand how the standard Darwin Core terms are related to previously used Darwin Core schemas.</p>
-                    <p>Before becoming a TDWG standard, the Darwin Core was instantiated and deployed in many different application profiles, all of them based on XML schema. The openly developed and widely used versions of the Darwin Core ([<a href="http://digir.sourceforge.net/schema/conceptual/darwin/2003/1.0/darwin2.xsd">CLASSIC</a>], [<a href="http://digir.sourceforge.net/schema/conceptual/darwin/manis/1.21/darwin2.xsd">MANIS</a>], [<a href="http://iobis.org/obis/obis.xsd">OBIS</a>], [<a href="http://rs.tdwg.org/dwc/tdwg_dw_core.xsd">DRAFT14</a>], [<a href="http://rs.tdwg.org/dwc/tdwg_dw_curatorial.xsd">CURATORIAL</a>], [<a href="http://rs.tdwg.org/dwc/tdwg_dw_geospatial.xsd">GEOSPATIAL</a>]), [<a href="http://wiki.tdwg.org/twiki/bin/view/DarwinCore/PaleontologyElement">PALEO</a>]) are each compared (mapped conceptually) to the current recommended Darwin Core terms [<a href="../../index.htm">TERMS</a>] in this document. Each historical version is mapped in a separate table and can be referenced quickly from the <a href="#mappings">Mappings</a> section below. <a id="mappings" name="mappings&quot;"></a></p>
+                    <p>Before becoming a TDWG standard, the Darwin Core was instantiated and deployed in many different application profiles, all of them based on XML schema. The openly developed and widely used versions of the Darwin Core ([<a href="http://digir.sourceforge.net/schema/conceptual/darwin/2003/1.0/darwin2.xsd">CLASSIC</a>], [<a href="http://digir.sourceforge.net/schema/conceptual/darwin/manis/1.21/darwin2.xsd">MANIS</a>], [<a href="http://iobis.org/obis/obis.xsd">OBIS</a>], [<a href="http://rs.tdwg.org/dwc/tdwg_dw_core.xsd">DRAFT14</a>], [<a href="http://rs.tdwg.org/dwc/tdwg_dw_curatorial.xsd">CURATORIAL</a>], [<a href="http://rs.tdwg.org/dwc/tdwg_dw_geospatial.xsd">GEOSPATIAL</a>]), [<a href="http://wiki.tdwg.org/twiki/bin/view/DarwinCore/PaleontologyElement">PALEO</a>]) are each compared (mapped conceptually) to the current recommended Darwin Core terms [<a href="../../index.htm">TERMS</a>] in this document. Each historical version is mapped in a separate table and can be referenced quickly from the Mappings section below.</p>
 
-                    <h3 id="dwcclassic">Darwin Core 1.2 (Classic)</h3>
+                    <h3 id="dwc-dwcclassic" class="anchor">Darwin Core 1.2 (Classic)</h3>
                     <table class="table table-bordered table-condensed">
                         <tbody>
                             <tr><td>Darwin Core 1.2 term</td><td>Recommended term</td></tr>
@@ -644,7 +644,7 @@
                         </tbody>
                     </table>
 
-                    <h3 id="dwcobis">OBIS extension</h3>
+                    <h3 id="dwc-dwcobis" class="anchor">OBIS extension</h3>
                     <table class="table table-bordered table-condensed">
                         <tbody>
                             <tr><td>OBIS term</td><td>Recommended term</td></tr>
@@ -678,7 +678,7 @@
                         </tbody>
                     </table>
 
-                    <h3 id="dwcmanis">Darwin Core 1.21 (MaNIS/HerpNet/ORNIS/FishNet2)</h3>
+                    <h3 id="dwc-dwcmanis" class="anchor">Darwin Core 1.21 (MaNIS/HerpNet/ORNIS/FishNet2)</h3>
                     <table class="table table-bordered table-condensed">
                         <tbody>
                             <tr><td>Darwin Core 1.21 term</td><td>Recommended term</td></tr>
@@ -751,7 +751,7 @@
                         </tbody>
                     </table>
                       
-                    <h3 id="dwcmdraft14">Darwin Core 1.4 (Draft Standard)</h3>
+                    <h3 id="dwc-dwcdraft14" class="anchor">Darwin Core 1.4 (Draft Standard)</h3>
                     <table class="table table-bordered table-condensed">
                         <tbody>
                             <tr><td>Darwin Core 1.4 term</td><td>Recommended term</td></tr>
@@ -804,7 +804,7 @@
                         </tbody>
                     </table>
 
-                    <h3 id="dwccuratorial">Darwin Core 1.4 Curatorial extension</h3>
+                    <h3 id="dwc-dwccuratorial" class="anchor">Darwin Core 1.4 Curatorial extension</h3>
                     <table class="table table-bordered table-condensed">
                         <tbody>
                             <tr><td>Darwin Core 1.4 Curatorial term</td><td>Recommended term</td></tr>
@@ -827,7 +827,7 @@
                         </tbody>
                     </table>
 
-                    <h3 id="dwcgeospatial">Darwin Core 1.4 Geospatial extension</h3>
+                    <h3 id="dwc-dwcgeospatial" class="anchor">Darwin Core 1.4 Geospatial extension</h3>
                     <table class="table table-bordered table-condensed">
                         <tbody>
                             <tr><td>Darwin Core 1.4 Geospatial term</td><td>Recommended term</td></tr>
@@ -849,7 +849,7 @@
                         </tbody>
                     </table>
 
-                    <h3 id="dwcpaleo">Darwin Core 1.4 Paleontology extension</h3>
+                    <h3 id="dwc-dwcpaleo" class="anchor">Darwin Core 1.4 Paleontology extension</h3>
                     <table class="table table-bordered table-condensed">
                         <tbody>
                             <tr><td>Darwin Core 1.4 Paleontology term</td><td>Recommended term</td></tr>