{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T13:28:23Z","timestamp":1791984503740,"version":"4.4.0"},"reference-count":151,"publisher":"PeerJ","license":[{"start":{"date-parts":[[2022,7,7]],"date-time":"2022-07-07T00:00:00Z","timestamp":1657152000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Gofundme campaign"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:p>\n                    <jats:italic>Eotyrannus lengi<\/jats:italic>\n                    Hutt et al., 2001 from the Lower Cretaceous Wessex Formation (part of the Wealden Supergroup) of the Isle of Wight, southern England, is described in detail, compared with other theropods, and evaluated in a new phylogenetic analysis.\n                    <jats:italic>Eotyrannus<\/jats:italic>\n                    is represented by a single individual that would have been c. 4.5 m long; it preserves the anterior part of the skull, a partial forelimb and pectoral girdle, various cervical, dorsal and caudal vertebrae, rib fragments, part of the ilium, and hindlimb elements excluding the femur. Lack of fusion with regard to both neurocentral and sacral sutures indicates subadult status.\n                    <jats:italic>Eotyrannus<\/jats:italic>\n                    possesses thickened, fused, pneumatic nasals with deep lateral recesses, elongate, tridactyl forelimbs and a tyrannosaurid-like scapulocoracoid. The short preantorbital ramus of the maxilla and nasals that are approximately seven times longer than they are wide show that\n                    <jats:italic>Eotyrannus<\/jats:italic>\n                    was not longirostrine. A posterodorsally inclined ridge on the ilium\u2019s lateral surface fails to reach the dorsal margin: a configuration seen elsewhere in\n                    <jats:italic>Juratyrant<\/jats:italic>\n                    .\n                    <jats:italic>Eotyrannus<\/jats:italic>\n                    is not arctometatarsalian. Autapomorphies include the presence of curving furrows on the dentary, a block-like humeral entepicondyle, and a distoproximally aligned channel close to the distolateral border of the tibia. Within Tyrannosauroidea,\n                    <jats:italic>E. lengi<\/jats:italic>\n                    is phylogenetically intermediate between Proceratosauridae and\n                    <jats:italic>Yutyrannus<\/jats:italic>\n                    and the clade that includes\n                    <jats:italic>Xiongguanlong<\/jats:italic>\n                    , Megaraptora,\n                    <jats:italic>Dryptosaurus<\/jats:italic>\n                    and Tyrannosauridae. We do not find support for a close affinity between\n                    <jats:italic>Eotyrannus<\/jats:italic>\n                    and\n                    <jats:italic>Juratyrant<\/jats:italic>\n                    . Our analysis supports the inclusion of Megaraptora within Tyrannosauroidea and thus increases Cretaceous tyrannosauroid diversity and disparity. A proposal that\n                    <jats:italic>Eotyrannus<\/jats:italic>\n                    might belong within Megaraptora, however, is based on character states not present in the taxon. Several theropods from the Wessex Formation are based on material that overlaps with the\n                    <jats:italic>E. lengi<\/jats:italic>\n                    holotype but none can be shown to be synonymous with it.\n                  <\/jats:p>","DOI":"10.7717\/peerj.12727","type":"journal-article","created":{"date-parts":[[2022,7,7]],"date-time":"2022-07-07T04:12:30Z","timestamp":1657167150000},"page":"e12727","source":"Crossref","is-referenced-by-count":26,"title":["The osteology and affinities of\n                    <i>Eotyrannus lengi<\/i>\n                    , a tyrannosauroid theropod from the Wealden Supergroup of southern England"],"prefix":"10.7717","volume":"10","author":[{"given":"Darren","family":"Naish","sequence":"first","affiliation":[{"name":"School of Biological Sciences, Faculty of Environment and Life Sciences, University of Southampton, Southampton, 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