EDIT

    foreach ((array)$registration_dto->orderdTypeDesignationWorkingSets as $workingset_ref => $obj) {

      $tokens = explode("#", $workingset_ref);

      $types_in_fieldunit = get_object_vars($obj); // convert into associative array

        foreach ($types_in_fieldunit as $type_status => $entity_reference_list) {

          if(!isset($name_type_designation_refs[$type_status])){

            $name_type_designation_refs[$type_status]  = $entity_reference_list;

          } else {

            array_push($name_type_designation_refs[$type_status] ,$entity_reference_list);

          }

        foreach ($types_in_fieldunit as $type_status => $entity_reference_list) {

          if(!isset($specimen_type_designation_refs[$type_status])){

            $specimen_type_designation_refs[$type_status] =  $entity_reference_list;

          } else {

            array_push($specimen_type_designation_refs[$type_status], $entity_reference_list);

          }

        }

  foreach($type_entity_refs as $type_status => $specimen_types){

    foreach($specimen_types as $specimen_type){

      $type_designation = cdm_ws_get(CDM_TYPEDESIGNATION, array($specimen_type->uuid));

      $preferredStableUri = '';

      $citation_markup = '';

      $media = '';

      // preferredStableUri

      if(isset($type_designation->typeSpecimen->preferredStableUri) && $type_designation->typeSpecimen->preferredStableUri){

        $preferredStableUri = $type_designation->typeSpecimen->preferredStableUri;

      $mediaSpecimen = cdm_ws_get(CDM_WS_PORTAL_OCCURRENCE, array($type_designation->typeSpecimen->uuid, 'mediaSpecimen'));

      if($mediaSpecimen){

        // compose output

        // mediaURI

        if(isset($mediaSpecimen->representations[0])) {

          $gallery_settings = getGallerySettings(CDM_DATAPORTAL_SPECIMEN_GALLERY_NAME);

          $captionElements = array(

            '#uri' => t('open media'),

            'elements' => array('-none-'),

            'sources_as_content' => true

          );

          $media = compose_cdm_media_gallerie(array(

            'mediaList' => array($mediaSpecimen),

            'galleryName' => CDM_DATAPORTAL_TYPE_SPECIMEN_GALLERY_NAME . '_' . $specimen_type->uuid,

            'maxExtend' => $gallery_settings['cdm_dataportal_media_maxextend'],

            'cols' => $gallery_settings['cdm_dataportal_media_cols'],

            'captionElements' => $captionElements,

          ));

        }

        // citation and detail

        $annotations_and_sources = handle_annotations_and_sources(

            $mediaSpecimen,

            array(

                'sources_as_content' => true,

                'link_to_name_used_in_source' => false,

                'link_to_reference' => true,

                'add_footnote_keys' => false,

                'bibliography_aware' => false),

            '',

            null

        );

        if(is_array( $annotations_and_sources['source_references'])){

          $citation_markup = join(', ', $annotations_and_sources['source_references']);

        }

      $render_array[] = markup_to_render_array('<div class="specimen_type_designation ' . html_class_attribute_ref($specimen_type)  . '">

          <span class="type_status">' . ucfirst($type_status) . "</span>: "

        . $specimen_type->label

        . ($citation_markup ? ' '. $citation_markup : '')

        . ($preferredStableUri ? " ". l($preferredStableUri,  $preferredStableUri) : '')

        . $media

        . '</div>');

    }