{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T22:27:28Z","timestamp":1790980048892,"version":"4.1.0"},"reference-count":51,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2005,2,6]],"date-time":"2005-02-06T00:00:00Z","timestamp":1107648000000},"content-version":"vor","delay-in-days":7982,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Morphology"],"published-print":{"date-parts":[[1983,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Subungulate hyraces are similar to the condition assumed to have characterized primitive ungulates and subungulates by virtue of their small body size, relatively unspecialized cranial and postcranial anatomy, and primitive type of lophodont dentition. The muscles of mastication of\n                    <jats:italic>Procavia habessinica<\/jats:italic>\n                    and\n                    <jats:italic>Heterohyrax brucei<\/jats:italic>\n                    are here compared with those of other mammals, both with ungulates, as an example of more specialized mammals, and with opossums, as an example of more generalized mammals, to determine aspects of hyrax myology that represent the retention of a condition primitive for herbivorous mammals.\n                  <\/jats:p>\n                  <jats:p>The masticatory muscles of hyraces retain the primitive ungulate\/subungulate condition in the large, complexly subdivided temporalis, and in the enlarged, pinnated, bilayered medial pterygoid. The medial pterygoid originates from the pterygoid hamulus, a condition that may also be primitive for this assemblage. The large complex superficial masseter is derived compared with the condition in ruminant artiodactyls, but may represent the condition primitive for perissodactyls. The architectural modifications of this muscle in hyraces may represent adaptations to allow a wide gape threat display.<\/jats:p>\n                  <jats:p>Hyraces possess a posterior belly of the digastric alone, paralleling the condition in some perissodactyls. They possess a large and complexly subdivided styloglossus, which may be a shared derived character of subungulates. Hyraces are unique among ungulates and subungulates in the extreme reduction of the anterior hyoid cornua, and may be unique among mammals in the development of paired lingual processes from the ceratohyal ossifications.<\/jats:p>","DOI":"10.1002\/jmor.1051760106","type":"journal-article","created":{"date-parts":[[2005,2,24]],"date-time":"2005-02-24T12:59:25Z","timestamp":1109249965000},"page":"61-87","source":"Crossref","is-referenced-by-count":29,"title":["Muscles of the masticatory apparatus in two genera of hyraces (\n                    <i>Procavia<\/i>\n                    and\n                    <i>Heterohyrax<\/i>\n                    )"],"prefix":"10.1002","volume":"176","author":[{"given":"Christine M.","family":"Janis","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2005,2,6]]},"reference":[{"key":"e_1_2_1_2_1","first-page":"508","article-title":"Comparative biologic\u2010anatomical researches on mastication in some mammals","volume":"56","author":"Becht G.","year":"1953","journal-title":"Ned. 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