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![Two specimens annotated to demonstrate the anatomical features of Idiognat...]()
![Scatter plots of CV1 and CV2 from the species group analysis: ( a ) sinistr...]()
![Average shape wireframes (in black) for the sinistral and dextral elements ...]()
![Panel of scatter plots showing PC1 with PC2 on the top row and PC3 with PC4...]()
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Idiognathodus salensae
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Journal Article
Geometric morphometric analysis of Idiognathodus species across the Atokan–Desmoinesian boundary in north-central New Mexico, USA
Journal: Journal of the Geological Society
Publisher: Geological Society of London
Published: 17 January 2025
Journal of the Geological Society (2025) 182 (2): jgs2024-161.
...Nicholas J. Hogancamp; James E. Barrick Landmark-based geometric morphometric analyses of three Idiognathodus species ( Idiognathodus salensae , Idiognathodus obstipus and Idiognathodus amplificus ) occurring in highest Atokan to lower Desmoinesian strata in New Mexico show that they represent...
FIGURES
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Image
Two specimens annotated to demonstrate the anatomical features of Idiognat...
in Geometric morphometric analysis of Idiognathodus species across the Atokan–Desmoinesian boundary in north-central New Mexico, USA
> Journal of the Geological Society
Published: 17 January 2025
specimen of Idiognathodus salensae (specimen number mh15rCID50). R.L., rostral lobe; C.L., caudal lobe; R. Ad., rostral adcarinal ridge; C. Ad., caudal adcarinal ridge. See main text for definitions of landmark numbers.
Image
Scatter plots of CV1 and CV2 from the species group analysis: ( a ) sinistr...
in Geometric morphometric analysis of Idiognathodus species across the Atokan–Desmoinesian boundary in north-central New Mexico, USA
> Journal of the Geological Society
Published: 17 January 2025
Fig. 3. Scatter plots of CV1 and CV2 from the species group analysis: ( a ) sinistral element analysis; and ( b ) dextral element analysis. The percentage represents the eigenscore for each axis. Idiognathodus salensae is marked by green circles, Idiognathodus obstipus is marked by pink
Image
Average shape wireframes (in black) for the sinistral and dextral elements ...
in Geometric morphometric analysis of Idiognathodus species across the Atokan–Desmoinesian boundary in north-central New Mexico, USA
> Journal of the Geological Society
Published: 17 January 2025
elements for each species are also provided for visual reference and are approximately 50×. The sinistral Idiognathodus salensae is from Barrick et al. (2023 b , their plate 26, fig. 11, Type Porvenier, 14.78 m). The dextral I. salensae is the holotype from Barrick et al. (2023 b , their plate
Image
Panel of scatter plots showing PC1 with PC2 on the top row and PC3 with PC4...
in Geometric morphometric analysis of Idiognathodus species across the Atokan–Desmoinesian boundary in north-central New Mexico, USA
> Journal of the Geological Society
Published: 17 January 2025
gold diamonds are short smooth carina types. On the right-hand plots, the black triangles are Idiognathodus amplificus , the pink squares are Idiognathodus obstipus and green circles are Idiognathodus salensae . The wireframe models below show the shape along each axis at the respective score
