diff --git a/zootaxa.csl b/zootaxa.csl
index 33d80ebb63..dc16aff229 100644
--- a/zootaxa.csl
+++ b/zootaxa.csl
@@ -14,12 +14,15 @@
       <name>Dimitri Forero</name>
       <email>idf2@cornell.edu</email>
     </contributor>
+    <contributor>
+      <name>Patrick O'Brien</name>
+    </contributor>
     <category citation-format="author-date"/>
     <category field="biology"/>
     <issn>1175-5326</issn>
     <eissn>1175-5334</eissn>
     <summary>The Zootaxa style.</summary>
-    <updated>2013-08-29T04:18:55+00:00</updated>
+    <updated>2019-06-20T13:09:14+00:00</updated>
     <rights license="http://creativecommons.org/licenses/by-sa/3.0/">This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License</rights>
   </info>
   <locale xml:lang="en-US">
@@ -62,7 +65,7 @@
   </macro>
   <macro name="access">
     <choose>
-      <if type="webpage book" match="any">
+      <if type="webpage book post post-weblog" match="any">
         <choose>
           <if variable="URL">
             <group delimiter=" ">
@@ -74,6 +77,9 @@
           </if>
         </choose>
       </if>
+      <else-if type="article-journal" match="any">
+        <text variable="DOI" prefix="https://doi.org/"/>
+      </else-if>
     </choose>
   </macro>
   <macro name="title">
@@ -150,6 +156,12 @@
       </else>
     </choose>
   </macro>
+  <macro name="number-of-pages">
+    <group delimiter=" ">
+      <text variable="number-of-pages"/>
+      <label variable="number-of-pages" form="short"/>
+    </group>
+  </macro>
   <citation et-al-min="3" et-al-use-first="1" disambiguate-add-year-suffix="true" collapse="year-suffix" givenname-disambiguation-rule="primary-name">
     <sort>
       <key macro="author-short"/>
@@ -171,65 +183,69 @@
       <key macro="year-date"/>
       <key variable="title"/>
     </sort>
-    <layout suffix=" ">
-      <text macro="author"/>
-      <date variable="issued" prefix=" (" suffix=")">
-        <date-part name="year"/>
-      </date>
-      <choose>
-        <if type="book" match="any">
-          <text macro="legal_case"/>
-          <group prefix=" " delimiter=" ">
-            <text macro="title" suffix="."/>
-            <text macro="edition"/>
-            <text macro="editor" suffix="."/>
-          </group>
-          <group prefix=" " suffix="." delimiter=", ">
-            <text macro="publisher"/>
-            <text variable="page" prefix=" " suffix=" pp"/>
-          </group>
-        </if>
-        <else-if type="chapter paper-conference" match="any">
-          <text macro="title" prefix=" " suffix="."/>
-          <group prefix=" In: " delimiter=" ">
-            <text macro="editor" suffix=","/>
-            <text variable="container-title" font-style="italic" suffix="."/>
-            <text variable="collection-title" suffix="."/>
-            <group suffix=".">
-              <text macro="publisher"/>
-              <group prefix=", pp. " delimiter=" " suffix=".">
-                <text variable="page"/>
+    <layout>
+      <group delimiter=" " suffix=".">
+        <text macro="author"/>
+        <date variable="issued" prefix="(" suffix=")">
+          <date-part name="year"/>
+        </date>
+        <choose>
+          <if type="book" match="any">
+            <text macro="legal_case"/>
+            <group delimiter=". ">
+              <text macro="title" suffix="."/>
+              <text macro="edition"/>
+              <text macro="editor" suffix="."/>
+              <group prefix=" " suffix="." delimiter=", ">
+                <text macro="publisher"/>
+                <text macro="number-of-pages" prefix=" "/>
               </group>
             </group>
-          </group>
-        </else-if>
-        <else-if type="bill graphic legal_case legislation manuscript motion_picture report song thesis" match="any">
-          <text macro="legal_case"/>
-          <group prefix=" " delimiter=" ">
+          </if>
+          <else-if type="chapter paper-conference" match="any">
             <text macro="title" suffix="."/>
-            <text macro="edition"/>
-            <text macro="editor" suffix="."/>
-          </group>
-          <group prefix=" " delimiter=", ">
-            <text macro="publisher"/>
-            <text variable="page" prefix=" " suffix="pp."/>
-          </group>
-        </else-if>
-        <else>
-          <group prefix=" " delimiter=" " suffix=".">
-            <text macro="title"/>
-            <text macro="editor"/>
-          </group>
-          <group prefix=" " suffix=".">
-            <text variable="container-title" font-style="italic"/>
-            <group prefix=" ">
-              <text variable="volume"/>
+            <group prefix=" " delimiter=" ">
+              <text term="in" text-case="capitalize-first" suffix=":"/>
+              <text macro="editor" suffix=","/>
+              <text variable="container-title" font-style="italic" suffix="."/>
+              <text variable="collection-title" suffix="."/>
+              <group suffix=".">
+                <text macro="publisher"/>
+                <group prefix=", " delimiter=" ">
+                  <label variable="page" form="short"/>
+                  <text variable="page"/>
+                </group>
+              </group>
             </group>
-            <text variable="page" prefix=", " suffix="."/>
-          </group>
-        </else>
-      </choose>
-      <text prefix=" " macro="access" suffix="."/>
+          </else-if>
+          <else-if type="bill graphic legal_case legislation manuscript motion_picture report song thesis" match="any">
+            <text macro="legal_case"/>
+            <group delimiter=" ">
+              <text macro="title" suffix="."/>
+              <text macro="edition"/>
+              <text macro="editor" suffix="."/>
+            </group>
+            <group prefix=" " delimiter=", ">
+              <text macro="publisher"/>
+              <text variable="page" prefix=" " suffix="pp."/>
+            </group>
+          </else-if>
+          <else>
+            <group prefix=" " delimiter=" " suffix=".">
+              <text macro="title"/>
+              <text macro="editor"/>
+            </group>
+            <group prefix=" " suffix=".">
+              <text variable="container-title" font-style="italic"/>
+              <group prefix=" ">
+                <text variable="volume"/>
+              </group>
+              <text variable="page" prefix=", " suffix="."/>
+            </group>
+          </else>
+        </choose>
+      </group>
+      <text macro="access" prefix=" "/>
     </layout>
   </bibliography>
 </style>