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Figure 85 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 85 - Dentary teeth of the heterodontosaurid Pegomastax africanus gen. n. sp. n. from the Lower Jurassic Upper Elliot Formation of South Africa. Dentary tooth row (SAM-PK-K10488). Stereopair (A) and line drawing (B) of left dentary teeth 1-8 in lateral view. Hatching indicates broken bone; dashed lines indicate estimated edges; grey tone indicates matrix; pink tone indicates wear facets. Scale bars equal 5 mm. Abbreviations: be buccal emargination d1, 2, 5–8 dentary teeth 1, 2 5–8 wf wear facets.
Figure 83 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 83 - Lower jaws of the heterodontosaurid Pegomastax africanus gen. n. sp. n. from the Lower Jurassic Upper Elliot Formation of South Africa. Anterior portion of the lower jaws (SAM-PK-K10488). Stereopair of dentaries and predentary. Scale bar equals 2 cm.
Figure 87 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 87 - Lower jaw of the heterodontosaurid Pegomastax africanus gen. n. sp. n. from the Lower Jurassic Upper Elliot Formation of South Africa. Reconstruction of the predentary and dentary in lateral view (based on SAM-PK-K10488). Dashed lines indicate estimated edges. Abbreviations: adf anterior dentary foramen apd articular surface for the predentary be buccal emargination d dentary d1, 2, 11 dentary teeth 1, 2, 11 emf external mandibular fenestra pd predentary pri primary ridge.
Figure 84 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 84 - Lower jaw of the heterodontosaurid Pegomastax africanus gen. n. sp. n. from the Lower Jurassic Upper Elliot Formation of South Africa. Predentary and dentaries (SAM-PK-K10488). Stereopair (A) and line drawing (B) of the predentary and anterior portion of the dentaries in ventrolateral view. Hatching indicates broken bone; dashed lines indicate estimated edges; grey tone indicates matrix. Scale bars equal 1 cm. Abbreviations: adf anterior dentary foramen apd articular surface for the predentary d dentary d1 dentary tooth 1 l left pd predentary r right sym symphysis t tooth vf vascular foramen.
Figure 82 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 82 - Partial skull of the heterodontosaurid Pegomastax africanus gen. n. sp. n. from the Lower Jurassic Upper Elliot Formation of South Africa. Partial skull (SAM-PK-K10488). Photograph (A) and line drawing (B) of the partial skull preserving the postorbital and anterior portion lower jaws. Hatching indicates broken bone; dashed lines indicate estimated edges; tone indicates matrix. Scale bar equals 2 cm. Abbreviations: adf anterior dentary foramen apd articular surface for the predentary cp coronoid process d dentary d1, 2, 8, 11 dentary tooth 1, 2, 8, 11 di diastema l left Mc Meckel's canal pd predentary po postorbital pr posterior ramus pra prearticular r right rt replacement tooth sym symphysis t tooth vr ventral ramus.
Figure 81 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 81 - Partial skull of Manidens condorensis from the Middle Jurassic Cañadón Asfalto Formation of Argentina. Skull reconstructions in lateral view A Reversed from Pol et al. (2011) B This study. Dashed lines indicate estimated edges. Abbreviations: a angular antfo antorbital fossa asaf anterior surangular foramen be buccal emargination bo basioccipital bt basal tubera d dentary d1, 2, 11 dentary tooth 1, 2, 11 emfo external mandibular fossa f frontal gl glenoid gr groove j jugal jfl jugal flange jh jugal horn m maxilla m1, 11 maxillary tooth 1, 11 n nasal pd predentary pm premaxilla po postorbital pof postorbital fossa popr paroccipital process q quadrate qj quadratojugal ri ridge sa surangular sq squamosal.
Figure 80 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 80 - Skull of the heterodontosaurid Lycorhinus angustidens from the Lower Jurassic Upper Elliot Formation of South Africa. Skull reconstruction based on the holotypic dentary (SAM-PK-K3606) and referred specimens (NHMUK RU A100, BP/1/4244). Dashed lines indicate estimated edges. Abbreviations: adi arched diastema antfo antorbital fossa be buccal emargination d dentary d1-3, 15 dentary teeth 1–3, 15 fo foramen j jugal m maxilla m1, 14, 15 maxillary tooth 1, 14, 15 nf narial fossa pd predentary pm premaxilla pm1, 3 premaxilla tooth 1, 3.
Figure 8 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 8 - Skeletal remains of Manidens condorensis from the Middle Jurassic Cañadón Asfalto Formation of Chubut Province, Argentina. Drawings of major cranial (A) and postcranial (B) blocks (from Pol et al. 2011). Stipple indicates matrix; hatching indicates broken bone; grey tone in A shades the right maxilla, left lower jaw and other bones to highlight the right lower jaw. Scale bars equal 1 cm. Abbreviations: a angular d dentary d1, 3 dentary tooth 1, 3 dv dorsal vertebra gl glenoid il ilium is ischium m maxilla ppp postpubic process prap preacetabular process sa surangular.
Figure 79 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 79 - Lower jaw of the heterodontosaurid Lycorhinus angustidens from the Lower Jurassic Upper Elliot Formation of South Africa. Posterior end of the lower jaw of an adult individual (NHMUK RU A100). Stereopair (A) and line drawing (B) of the posterior end of the right lower jaw in lateral view. Dashed lines indicate estimated edges; tone indicates matrix. Scale bars equal 2 cm. Abbreviations: a angular asaf anterior surangular foramen cp coronoid process d dentary emfo external mandibular fossa sa surangular sp splenial.
Figure 78 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 78 - Lower jaw of the heterodontosaurid Lycorhinus angustidens from the Lower Jurassic Upper Elliot Formation of South Africa. Anterior end of the lower jaw of an adult individual (NHMUK RU A100). Stereopair (A) and line drawing (B) of the anterior end of the left lower jaw in medial view. Hatching indicates broken bone; dashed lines indicate estimated edges; tone indicates matrix. Scale bars equal 2 cm in A and 1 cm in B. Abbreviations: d dentary d1, 2 dentary tooth 1, 2 imf internal mandibular fenestra sp splenial sym symphysis.
Figure 77 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 77 - Maxilla of the heterodontosaurid Lycorhinus angustidens from the Lower Jurassic Upper Elliot Formation of South Africa. Maxilla of an adult individual with worn teeth (NHMUK RU A100). A Stereopair of the right maxilla in lateral view B Close-up view of the ascending ramus C Close-up view of the worn crowns of maxillary teeth 6–8. Scale bars equal 2 cm in A, 3 cm in B, and 1 cm in C.
Figure 76 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 76 - Premaxilla of the heterodontosaurid Lycorhinus angustidens from the Lower Jurassic Upper Elliot Formation of South Africa. Premaxilla of an adult individual with worn teeth (NHMUK RU A100). Stereopair (A) and line drawing (B) of the right premaxilla in medial view. Hatching indicates broken bone; dashed lines indicate estimated edges; grey tone indicates matrix; pink tone indicates wear facets. Scale bar equals 1 cm. Abbreviations: adi arched diastema amap articular surface for the maxillary anterior process apm articular surface for the opposing premaxilla en external nares fo foramen pm1, 3 premaxilla tooth 1, 3 wfpd wear facet from predentary bill.
Figure 75 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 75 - Upper jaw of the heterodontosaurid Lycorhinus angustidens from the Lower Jurassic Upper Elliot Formation of South Africa. Premaxilla and maxilla of an adult individual with worn teeth (NHMUK RU A100). Right premaxilla and maxilla in medial and lateral views, respectively. Hatching indicates broken bone; dashed lines indicate estimated edges; grey tone indicates matrix; pink tone indicates wear facets. Scale bar equals 2 cm. Abbreviations: adi arched diastema aj articular surface for the jugal al articular surface for the lacrimal am14 alveolus for maxillary tooth 14 amap articular surface for the maxillary anterior process antfo antorbital fossa apm articular surface for the opposing premaxilla arm ascending ramus of the maxilla be buccal emargination d2 dentary tooth 2 en external nares fo foramen fos fossa lewf leading edge of the wear facet m maxilla m1, 8 maxillary tooth 1, 8 pm premaxilla pm1, 3 premaxilla tooth 1, 3 pr process r right wfpd wear facet from predentary bill.
Figure 74 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 74 - Block with remains of the heterodontosaurid Lycorhinus angustidens from the Lower Jurassic Upper Elliot Formation of South Africa. Bottom view of block (NHMUK RU A100) showing portions of the right and left lower jaws. Hatching indicates broken bone; dashed lines indicate estimated edges; tone indicates matrix. Scale bar equals 3 cm. Abbreviations: a angular d dentary d1, 2 dentary tooth 1, 2 emfo external mandibular fossa imf internal mandibular fenestra l left r right sa surangular sp splenial sym symphysis.
Figure 62 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 62 - Presacral vertebrae of Heterodontosaurus tucki from the Lower Jurassic Upper Elliot and Clarens formations of South Africa. Cervical and anterior dorsal vertebrae and ribs of an adult skeleton (SAM-PK-K1332). Stereopair (A) and line drawing (B) in left lateral view. Hatching indicates broken bone; dashed lines indicate estimated edges; tone indicates matrix. Scale bars equal 5 cm in A and 3 cm in B. Abbreviations: ax axial axi axial intercentrum C2-6, 8, 9 cervical vertebra 2–6, 8, 9 D1, 3, 4 dorsal vertebra 1, 3, 4 di diapophysis epi epipophysis h humerus ns neural spine od odontoid ot ossified tendons pa parapophysis prz prezygapohpysis r rib sc scapula.
Figure 71 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 71 - Pes of Heterodontosaurus tucki from the Lower Jurassic Upper Elliot and Clarens formations of South Africa. Tarsometatarsus and pes of an adult skeleton (SAM-PK-K1328). Photograph (A) and line drawing (B) of the right tarsometatarsus and pes in anterior view. Hatching indicates broken bone; dashed lines indicate estimated edges; tone indicates matrix. Scale bar equals 3 cm. Abbreviations: I-IV digits I-IV ded dorsal extensor depression dip dorsal intercondylar process dt3, 4 distal tarsals 3, 4 fo foramen mt1-4 metatarsals 1-4 un ungual.
Figure 69 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 69 - Hindlimb of Heterodontosaurus tucki from from the Lower Jurassic Upper Elliot and Clarens formations of South Africa. Tibiotarsus in an adult skeleton (SAM-PK-K1332). Photograph (A) and line drawing (B) of the left distal femur and tibiotarsus in lateral view. Hatching indicates broken bone; dashed lines indicate estimated edges; tone indicates matrix. Scale bar equals 5 cm. Abbreviations: at anterior trochanter ca calcaneum fe femur fi fibula ti tibia.
Figure 73 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 73 - Block with remains of the heterodontosaurid Lycorhinus angustidens from the Lower Jurassic Upper Elliot Formation of South Africa. Top view of block showing the right premaxilla and maxilla and portions of the right and left lower jaws (NHMUK RU A100). Hatching indicates broken bone; dashed lines indicate estimated edges; grey tone indicates matrix; pink tone indicates wear facets. Scale bar equals 3 cm. Abbreviations: c coronoid d dentary d2 dentary tooth 2 l left m maxilla pc pulp cavity pm premaxilla r right sa surangular wf wear facet wfpd wear facet from predentary bill wt worn teeth.
Figure 66 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 66 - Carpus and manus of Heterodontosaurus tucki from the Lower Jurassic Upper Elliot and Clarens formations of South Africa. Carpus and manus of an adult skeleton (SAM-PK-K1332). Photograph (A) and line drawing (B) of the left carpus and manus in lateral view. Hatching indicates broken bone; tone indicates matrix. Scale bar equals 2 cm. Abbreviations: II-V digits II-V dc4, 5 distal carpal 4, 5 mc3-5 metacarpals 3–5 ph phalanx pi pisiform ul ulna ule ulnare un ungual.
Figure 65 from: Sereno P (2012) Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs. ZooKeys 226: 1-225. https://doi.org/10.3897/zookeys.226.2840
Figure 65 - Forelimb of Heterodontosaurus tucki from the Lower Jurassic Upper Elliot and Clarens formations of South Africa. Antebrachium, carpus and manus of an adult skeleton (SAM-PK-K1332). Photograph (A) and line drawing (B) of the right radius, ulna, carpus and manus in dorsal view. Hatching indicates broken bone; dashed lines indicate estimated edges; tone indicates matrix. Scale bar equals 3 cm. Abbreviations: I-IV digits I-IV ce centrale dc1, 4 distal carpal 1, 4 ded dorsal extensor depression dip dorsal intercondylar process he heel mc1, 4 metacarpal 1, 4 ol olecranon ph, phalanx pi pisiform ra radius rae radiale ul ulna ule ulnare un ungual.
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International Brain Laboratory public data
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OpenNeuro
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