taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
CD2E87D2FFA1FFDFFD00FB400780CDB2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15491546/files/figure.png	https://doi.org/10.5281/zenodo.15491546	FIGURE 1 | A. Colossimystax pectegenitor, Holotype, MCNG 54797, 241.6 mm SL. Photo by NKL. B. Stellantia siderea, AUM 43443, 147.1 mm SL. The two genera are described below. Photo by M. H. Sabaj.	FIGURE 1 | A. Colossimystax pectegenitor, Holotype, MCNG 54797, 241.6 mm SL. Photo by NKL. B. Stellantia siderea, AUM 43443, 147.1 mm SL. The two genera are described below. Photo by M. H. Sabaj.	2025-01-10	Armbruster, Jonathan W.;Lujan, Nathan K.		Zenodo	biologists	Armbruster, Jonathan W.;Lujan, Nathan K.			
CD2E87D2FFA1FFDFFD00FB400780CDB2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15491548/files/figure.png	https://doi.org/10.5281/zenodo.15491548	FIGURE 2 | Caudal peduncles of A. Pseudancistrus nigrescens, AUM 35742, 137.2 mm SL; B. Stellantia siderea, AUM 42185, 180.0 mm SL; and C. Colossimystax pectegenitor, paratype, AUM 42202, 227.0 mm SL. DL is the dorsal lamina of the indicated plate, and the keel lies just ventral. In A, there is only a slight keel (~3 plates) with the dorsal laminae straight to very slightly concave while the keel extends in front of the adipose fin in B and C and the dorsal laminae are concave.	FIGURE 2 | Caudal peduncles of A. Pseudancistrus nigrescens, AUM 35742, 137.2 mm SL; B. Stellantia siderea, AUM 42185, 180.0 mm SL; and C. Colossimystax pectegenitor, paratype, AUM 42202, 227.0 mm SL. DL is the dorsal lamina of the indicated plate, and the keel lies just ventral. In A, there is only a slight keel (~3 plates) with the dorsal laminae straight to very slightly concave while the keel extends in front of the adipose fin in B and C and the dorsal laminae are concave.	2025-01-10	Armbruster, Jonathan W.;Lujan, Nathan K.		Zenodo	biologists	Armbruster, Jonathan W.;Lujan, Nathan K.			
CD2E87D2FFA1FFDFFD00FB400780CDB2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15491560/files/figure.png	https://doi.org/10.5281/zenodo.15491560	FIGURE 6 | µCT renderings of neurocrania (left, lateral view) of A. Hemiancistrus medians, ANSP 187122, B. Pseudancistrus barbatus, ROM 86176, C. Colossimystax pectegenitor, AUM 42130, D. Stellantia siderea, AUM 54310, E. Lithoxancistrus coquenani, AMNH 91025, F. Lithoxancistrus yekuana, AUM 39473. Scale bars = 1 cm.	FIGURE 6 | µCT renderings of neurocrania (left, lateral view) of A. Hemiancistrus medians, ANSP 187122, B. Pseudancistrus barbatus, ROM 86176, C. Colossimystax pectegenitor, AUM 42130, D. Stellantia siderea, AUM 54310, E. Lithoxancistrus coquenani, AMNH 91025, F. Lithoxancistrus yekuana, AUM 39473. Scale bars = 1 cm.	2025-01-10	Armbruster, Jonathan W.;Lujan, Nathan K.		Zenodo	biologists	Armbruster, Jonathan W.;Lujan, Nathan K.			
CD2E87D2FFA1FFDFFD00FB400780CDB2.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15491558/files/figure.png	https://doi.org/10.5281/zenodo.15491558	FIGURE 5 | Distribution of Colossimystax pectegenitor (black dots) and Stellantia siderea (white dots).	FIGURE 5 | Distribution of Colossimystax pectegenitor (black dots) and Stellantia siderea (white dots).	2025-01-10	Armbruster, Jonathan W.;Lujan, Nathan K.		Zenodo	biologists	Armbruster, Jonathan W.;Lujan, Nathan K.			
CD2E87D2FFA5FFD8FCB2FE70074ACF53.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15491552/files/figure.png	https://doi.org/10.5281/zenodo.15491552	FIGURE 4 | µCT renderings of the crania of A. Pseudancistrus megacephalus, BMNH 1978.9.12.3, and B. P. barbatus, ROM 86176, in slightly anterolateral (top) and ventral views (bottom) emphasizing major differences between P. megacephalus and Pseudancistrus sensu stricto. CPP: canal plate process, HS: Hyomandibula posterior shelf, LPC: Lateral wall of the pterygoid channel, MPC: metapterygoid condyle, PAP: compound pterotic anterior process, SUSP: suspensorium.	FIGURE 4 | µCT renderings of the crania of A. Pseudancistrus megacephalus, BMNH 1978.9.12.3, and B. P. barbatus, ROM 86176, in slightly anterolateral (top) and ventral views (bottom) emphasizing major differences between P. megacephalus and Pseudancistrus sensu stricto. CPP: canal plate process, HS: Hyomandibula posterior shelf, LPC: Lateral wall of the pterygoid channel, MPC: metapterygoid condyle, PAP: compound pterotic anterior process, SUSP: suspensorium.	2025-01-10	Armbruster, Jonathan W.;Lujan, Nathan K.		Zenodo	biologists	Armbruster, Jonathan W.;Lujan, Nathan K.			
CD2E87D2FFA2FFD1FD66FBF600D1C884.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15491546/files/figure.png	https://doi.org/10.5281/zenodo.15491546	FIGURE 1 | A. Colossimystax pectegenitor, Holotype, MCNG 54797, 241.6 mm SL. Photo by NKL. B. Stellantia siderea, AUM 43443, 147.1 mm SL. The two genera are described below. Photo by M. H. Sabaj.	FIGURE 1 | A. Colossimystax pectegenitor, Holotype, MCNG 54797, 241.6 mm SL. Photo by NKL. B. Stellantia siderea, AUM 43443, 147.1 mm SL. The two genera are described below. Photo by M. H. Sabaj.	2025-01-10	Armbruster, Jonathan W.;Lujan, Nathan K.		Zenodo	biologists	Armbruster, Jonathan W.;Lujan, Nathan K.			
CD2E87D2FFA2FFD1FD66FBF600D1C884.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15491548/files/figure.png	https://doi.org/10.5281/zenodo.15491548	FIGURE 2 | Caudal peduncles of A. Pseudancistrus nigrescens, AUM 35742, 137.2 mm SL; B. Stellantia siderea, AUM 42185, 180.0 mm SL; and C. Colossimystax pectegenitor, paratype, AUM 42202, 227.0 mm SL. DL is the dorsal lamina of the indicated plate, and the keel lies just ventral. In A, there is only a slight keel (~3 plates) with the dorsal laminae straight to very slightly concave while the keel extends in front of the adipose fin in B and C and the dorsal laminae are concave.	FIGURE 2 | Caudal peduncles of A. Pseudancistrus nigrescens, AUM 35742, 137.2 mm SL; B. Stellantia siderea, AUM 42185, 180.0 mm SL; and C. Colossimystax pectegenitor, paratype, AUM 42202, 227.0 mm SL. DL is the dorsal lamina of the indicated plate, and the keel lies just ventral. In A, there is only a slight keel (~3 plates) with the dorsal laminae straight to very slightly concave while the keel extends in front of the adipose fin in B and C and the dorsal laminae are concave.	2025-01-10	Armbruster, Jonathan W.;Lujan, Nathan K.		Zenodo	biologists	Armbruster, Jonathan W.;Lujan, Nathan K.			
CD2E87D2FFA6FFDAFD05FE96072CCD59.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15491546/files/figure.png	https://doi.org/10.5281/zenodo.15491546	FIGURE 1 | A. Colossimystax pectegenitor, Holotype, MCNG 54797, 241.6 mm SL. Photo by NKL. B. Stellantia siderea, AUM 43443, 147.1 mm SL. The two genera are described below. Photo by M. H. Sabaj.	FIGURE 1 | A. Colossimystax pectegenitor, Holotype, MCNG 54797, 241.6 mm SL. Photo by NKL. B. Stellantia siderea, AUM 43443, 147.1 mm SL. The two genera are described below. Photo by M. H. Sabaj.	2025-01-10	Armbruster, Jonathan W.;Lujan, Nathan K.		Zenodo	biologists	Armbruster, Jonathan W.;Lujan, Nathan K.			
CD2E87D2FFA6FFDAFD05FE96072CCD59.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15491558/files/figure.png	https://doi.org/10.5281/zenodo.15491558	FIGURE 5 | Distribution of Colossimystax pectegenitor (black dots) and Stellantia siderea (white dots).	FIGURE 5 | Distribution of Colossimystax pectegenitor (black dots) and Stellantia siderea (white dots).	2025-01-10	Armbruster, Jonathan W.;Lujan, Nathan K.		Zenodo	biologists	Armbruster, Jonathan W.;Lujan, Nathan K.			
