taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
375EAA21FF82CB4EFEEFA7090A7242E8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14971831/files/figure.png	https://doi.org/10.5281/zenodo.14971831	Figure 1. Rendering of 3D virtual models of petrosal and inner ear endocast of Morganucodon watsoni NHM UK PV M21105 (A–G) and NHM UK PV M27691 (H) based on µCT data.Complete petrosal in ventral (A) and dorsal (C) views, with inner ear endocast indicated in dark grey and vasculature endocast indicated in blue. Inner ear endocast (dark grey) of NHM UK PV M21105 at smaller scale than petrosal (A, C), with vasculature endocast indicated in blue in ventral (B) and dorsal (D) views. E–H, aspects of petrosal of NHM UK PV M21105 (A–G) and NHM UK PV M27691 (H) highlighting various anatomical details not visible in standard dorsal and ventral views. E, medial view of petrosal of NHM UK PV M21105 showing perilymphatic groove with small bony lappet; the perilymphatic foramen is outlined by a sharp rim around its periphery.F, dorsomedial view of cavum epiptericum and cavum supracochleare of NHM UK PV M21105, showing primary and secondary facial foramen and hiatus Fallopi for passage of the facial nerve and branches thereof.G, internal view of cochlear canal of NHM UK PV M21105, with dorsal aspect of the petrosal removed (indicated by grey hatched pattern). The venous circum-promontorial plexus is indicated in blue, passing into the cochlear canal along the secondary lamina base. H, anterodorsal view of petrosal of NHM UK PV M27691 showing foramina associated with the cochlear nerve, vestibular nerve, facial nerve, and an additional foramen next to the cochlear foramen, possibly for the lagenar nerve or arterial blood supply to the cochlea.Abbreviations:bl, bony lamina demarcating perilymphatic groove; ce, cavum epiptericum; ci, crista interfenestralis; cpp, circum-promontorial plexus; cptv, emissary veins to posttrigeminal vein; cs, cavum supracochleare; ef, endolymphatic foramen; f, foramen next to cochlear foramen, possibly for lagenar nerve or arterial blood supply to cochlea; fcn, cochlear foramen; fi, fossa incudis; fv, fenestra vestibuli; fvn, foramen for vestibular nerve; hf, hiatus Fallopi; ips, inferior petrosal sinus; lf, lateral flange; lff, lateral flange foramen; lt, lateral trough; pes, posterior epicochlear sinus; pf, perilymphatic foramen; pff, primary facial foramen; pg, perilymphatic groove; poc, prootic canal; pp, paroccipital process; ppf, pterygoparoccipital foramen; pr, promontorium; ps, prootic sinus; saf, subarcuate fossa; sf, stapedial fossa; sff, secondary facial foramen; V3, foramen for mandibular division of trigeminal nerve. Different scales are indicated in parts of the figure.	Figure 1. Rendering of 3D virtual models of petrosal and inner ear endocast of Morganucodon watsoni NHM UK PV M21105 (A–G) and NHM UK PV M27691 (H) based on µCT data.Complete petrosal in ventral (A) and dorsal (C) views, with inner ear endocast indicated in dark grey and vasculature endocast indicated in blue. Inner ear endocast (dark grey) of NHM UK PV M21105 at smaller scale than petrosal (A, C), with vasculature endocast indicated in blue in ventral (B) and dorsal (D) views. E–H, aspects of petrosal of NHM UK PV M21105 (A–G) and NHM UK PV M27691 (H) highlighting various anatomical details not visible in standard dorsal and ventral views. E, medial view of petrosal of NHM UK PV M21105 showing perilymphatic groove with small bony lappet; the perilymphatic foramen is outlined by a sharp rim around its periphery.F, dorsomedial view of cavum epiptericum and cavum supracochleare of NHM UK PV M21105, showing primary and secondary facial foramen and hiatus Fallopi for passage of the facial nerve and branches thereof.G, internal view of cochlear canal of NHM UK PV M21105, with dorsal aspect of the petrosal removed (indicated by grey hatched pattern). The venous circum-promontorial plexus is indicated in blue, passing into the cochlear canal along the secondary lamina base. H, anterodorsal view of petrosal of NHM UK PV M27691 showing foramina associated with the cochlear nerve, vestibular nerve, facial nerve, and an additional foramen next to the cochlear foramen, possibly for the lagenar nerve or arterial blood supply to the cochlea.Abbreviations:bl, bony lamina demarcating perilymphatic groove; ce, cavum epiptericum; ci, crista interfenestralis; cpp, circum-promontorial plexus; cptv, emissary veins to posttrigeminal vein; cs, cavum supracochleare; ef, endolymphatic foramen; f, foramen next to cochlear foramen, possibly for lagenar nerve or arterial blood supply to cochlea; fcn, cochlear foramen; fi, fossa incudis; fv, fenestra vestibuli; fvn, foramen for vestibular nerve; hf, hiatus Fallopi; ips, inferior petrosal sinus; lf, lateral flange; lff, lateral flange foramen; lt, lateral trough; pes, posterior epicochlear sinus; pf, perilymphatic foramen; pff, primary facial foramen; pg, perilymphatic groove; poc, prootic canal; pp, paroccipital process; ppf, pterygoparoccipital foramen; pr, promontorium; ps, prootic sinus; saf, subarcuate fossa; sf, stapedial fossa; sff, secondary facial foramen; V3, foramen for mandibular division of trigeminal nerve. Different scales are indicated in parts of the figure.	2024-05-21	Hoffmann, Simone;Malik, Ramza Shahid;Vidyasagan, Anjun;Gill, Pamela		Zenodo	biologists	Hoffmann, Simone;Malik, Ramza Shahid;Vidyasagan, Anjun;Gill, Pamela			
375EAA21FF82CB4EFEEFA7090A7242E8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14971833/files/figure.png	https://doi.org/10.5281/zenodo.14971833	Figure 2. Rendering of selected 3D virtual models of petrosal and inner ear endocast of Morganucodon watsoni from Pant 2 fissure filling, based on µCT data, in ventral (A, C, E) and dorsal (B, D, F) views, of NHM UK PV M19112 (A, B), NHM UK PV M21105 (C, D), and NHM UK PV M21200 (E, F). From left to right: petrosal; petrosal in semi-transparent view with inner ear endocast indicated in dark grey and vasculature endocast indicated in blue; endocast of inner ear (dark grey) and vasculature (blue); and isolated endocast of inner ear (dark grey). Anterior is at the top in A–F; medial is on the left in A, D, E and on the right in B, C, F. Abbreviations: asc, anterior semicircular	Figure 2. Rendering of selected 3D virtual models of petrosal and inner ear endocast of Morganucodon watsoni from Pant 2 fissure filling, based on µCT data, in ventral (A, C, E) and dorsal (B, D, F) views, of NHM UK PV M19112 (A, B), NHM UK PV M21105 (C, D), and NHM UK PV M21200 (E, F). From left to right: petrosal; petrosal in semi-transparent view with inner ear endocast indicated in dark grey and vasculature endocast indicated in blue; endocast of inner ear (dark grey) and vasculature (blue); and isolated endocast of inner ear (dark grey). Anterior is at the top in A–F; medial is on the left in A, D, E and on the right in B, C, F. Abbreviations: asc, anterior semicircular	2024-05-21	Hoffmann, Simone;Malik, Ramza Shahid;Vidyasagan, Anjun;Gill, Pamela		Zenodo	biologists	Hoffmann, Simone;Malik, Ramza Shahid;Vidyasagan, Anjun;Gill, Pamela			
375EAA21FF82CB4EFEEFA7090A7242E8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14971837/files/figure.png	https://doi.org/10.5281/zenodo.14971837	Figure 3. Rendering of selected 3D virtual models of petrosal and inner ear endocast of Morganucodon watsoni from Pant 2 fissure filling, based on µCT data, in ventral (A, C, E) and dorsal views (B, D, F), of NHM UK PV M21173 (A, B), NHM UK PV M21208 (C, D), and NHM UK PV M21210 (E, F). From left to right: petrosal; petrosal in semi-transparent view with inner ear endocast indicated in dark grey and vasculature endocast indicated in blue; endocast of inner ear (dark grey) and vasculature (blue); and isolated endocast of inner ear (dark grey). Anterior is at the top in A–F; medial is on the right in A, D, F and on the left in B, C, E. Abbreviations: aes, anterior epicochlear sinus;	Figure 3. Rendering of selected 3D virtual models of petrosal and inner ear endocast of Morganucodon watsoni from Pant 2 fissure filling, based on µCT data, in ventral (A, C, E) and dorsal views (B, D, F), of NHM UK PV M21173 (A, B), NHM UK PV M21208 (C, D), and NHM UK PV M21210 (E, F). From left to right: petrosal; petrosal in semi-transparent view with inner ear endocast indicated in dark grey and vasculature endocast indicated in blue; endocast of inner ear (dark grey) and vasculature (blue); and isolated endocast of inner ear (dark grey). Anterior is at the top in A–F; medial is on the right in A, D, F and on the left in B, C, E. Abbreviations: aes, anterior epicochlear sinus;	2024-05-21	Hoffmann, Simone;Malik, Ramza Shahid;Vidyasagan, Anjun;Gill, Pamela		Zenodo	biologists	Hoffmann, Simone;Malik, Ramza Shahid;Vidyasagan, Anjun;Gill, Pamela			
375EAA21FF82CB4EFEEFA7090A7242E8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14971841/files/figure.png	https://doi.org/10.5281/zenodo.14971841	Figure 4. Rendering of selected 3D virtual models of petrosal and inner ear endocast of Morganucodon watsoni from Pontalun 2 fissure filling, based on µCT data, in ventral (A, C) and dorsal views (B, D), of NHM UK PV M27135 (A, B) and NHM UK PV M27144 (C, D). From left to right:petrosal; petrosal in semi-transparent view with inner ear endocast indicated in dark grey and vasculature endocast indicated in blue; endocast of inner ear (dark grey) and vasculature (blue); and isolated endocast of inner ear (dark grey).Anterior is at the top in A–F; medial is on the right in A, D and on the left in B, C. Abbreviations:asc, anterior semicircular canal; co, cochlea; cpp, circum-promontorial plexus; ef, endolymphatic foramen; fcn, cochlear foramen; fv, fenestra vestibuli; fvn, foramen for vestibular nerve; hs, hypocochlear sinus; ips, inferior petrosal sinus; lm, lagena macula; lsc, lateral semicircular canal; pes, posterior epicochlear sinus; pf, perilymphatic foramen; pff,primary facial foramen; pg, perilymphatic groove; poc, prootic canal; pp, paroccipital process; ppf, pterygoparoccipital foramen; pr, promontorium; ps, prootic sinus; psc, posterior semicircular canal; psca, posterior semicircular canal ampulla; saf, subarcuate fossa; sf, stapedial fossa; slb, secondary lamina base.All panels are at the same scale (1 mm).	Figure 4. Rendering of selected 3D virtual models of petrosal and inner ear endocast of Morganucodon watsoni from Pontalun 2 fissure filling, based on µCT data, in ventral (A, C) and dorsal views (B, D), of NHM UK PV M27135 (A, B) and NHM UK PV M27144 (C, D). From left to right:petrosal; petrosal in semi-transparent view with inner ear endocast indicated in dark grey and vasculature endocast indicated in blue; endocast of inner ear (dark grey) and vasculature (blue); and isolated endocast of inner ear (dark grey).Anterior is at the top in A–F; medial is on the right in A, D and on the left in B, C. Abbreviations:asc, anterior semicircular canal; co, cochlea; cpp, circum-promontorial plexus; ef, endolymphatic foramen; fcn, cochlear foramen; fv, fenestra vestibuli; fvn, foramen for vestibular nerve; hs, hypocochlear sinus; ips, inferior petrosal sinus; lm, lagena macula; lsc, lateral semicircular canal; pes, posterior epicochlear sinus; pf, perilymphatic foramen; pff,primary facial foramen; pg, perilymphatic groove; poc, prootic canal; pp, paroccipital process; ppf, pterygoparoccipital foramen; pr, promontorium; ps, prootic sinus; psc, posterior semicircular canal; psca, posterior semicircular canal ampulla; saf, subarcuate fossa; sf, stapedial fossa; slb, secondary lamina base.All panels are at the same scale (1 mm).	2024-05-21	Hoffmann, Simone;Malik, Ramza Shahid;Vidyasagan, Anjun;Gill, Pamela		Zenodo	biologists	Hoffmann, Simone;Malik, Ramza Shahid;Vidyasagan, Anjun;Gill, Pamela			
375EAA21FF82CB4EFEEFA7090A7242E8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14971845/files/figure.png	https://doi.org/10.5281/zenodo.14971845	Figure 5. Rendering of selected 3D virtual models of petrosal and inner ear endocast of Morganucodon watsoni from Pontalun 3 fissure filling, based on µCT data, in ventral (A, C, E, G) and dorsal (B, D, F, H) views, of NHM UK PV M27690 (A, B), NHM UK PV M27691 (C, D), NHM UK PV M27701 (E, F), and NHM UK PV M27702 (G, H). From left to right: petrosal; petrosal in semi-transparent view with inner ear endocast indicated in dark grey and vasculature endocast indicated in blue; endocast of inner ear (dark grey) and vasculature (blue); and isolated endocast of inner ear (dark grey). Anterior is at the top in A–F; medial is on the right in A, C, F, G and on the left in B, D, E, H.	Figure 5. Rendering of selected 3D virtual models of petrosal and inner ear endocast of Morganucodon watsoni from Pontalun 3 fissure filling, based on µCT data, in ventral (A, C, E, G) and dorsal (B, D, F, H) views, of NHM UK PV M27690 (A, B), NHM UK PV M27691 (C, D), NHM UK PV M27701 (E, F), and NHM UK PV M27702 (G, H). From left to right: petrosal; petrosal in semi-transparent view with inner ear endocast indicated in dark grey and vasculature endocast indicated in blue; endocast of inner ear (dark grey) and vasculature (blue); and isolated endocast of inner ear (dark grey). Anterior is at the top in A–F; medial is on the right in A, C, F, G and on the left in B, D, E, H.	2024-05-21	Hoffmann, Simone;Malik, Ramza Shahid;Vidyasagan, Anjun;Gill, Pamela		Zenodo	biologists	Hoffmann, Simone;Malik, Ramza Shahid;Vidyasagan, Anjun;Gill, Pamela			
375EAA21FF82CB4EFEEFA7090A7242E8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14971847/files/figure.png	https://doi.org/10.5281/zenodo.14971847	Figure 6. Rendering of 3D virtual models of semicircular canals of NHM UK PV M21220 (A–D) and NHM UK PV M21105 (E–H), both from Pant 2 fissure, in lateral (A, E), posterodorsal (B, F), posteromedial (C, G), and anteromedial (D, H) views, based on µCT data. Abbreviations:asc, anterior semicircular canal; asca, anterior semicircular canal ampulla; cc, crus commune; fv, fenestra vestibuli; lsc, lateral semicircular canal; lsca, lateral semicircular canal ampulla; psc, posterior semicircular canal; psca, posterior semicircular canal ampulla. All panels are at the same scale (1 mm).	Figure 6. Rendering of 3D virtual models of semicircular canals of NHM UK PV M21220 (A–D) and NHM UK PV M21105 (E–H), both from Pant 2 fissure, in lateral (A, E), posterodorsal (B, F), posteromedial (C, G), and anteromedial (D, H) views, based on µCT data. Abbreviations:asc, anterior semicircular canal; asca, anterior semicircular canal ampulla; cc, crus commune; fv, fenestra vestibuli; lsc, lateral semicircular canal; lsca, lateral semicircular canal ampulla; psc, posterior semicircular canal; psca, posterior semicircular canal ampulla. All panels are at the same scale (1 mm).	2024-05-21	Hoffmann, Simone;Malik, Ramza Shahid;Vidyasagan, Anjun;Gill, Pamela		Zenodo	biologists	Hoffmann, Simone;Malik, Ramza Shahid;Vidyasagan, Anjun;Gill, Pamela			
375EAA21FF82CB4EFEEFA7090A7242E8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/14971851/files/figure.png	https://doi.org/10.5281/zenodo.14971851	Figure 7. Rendering of 3D virtual models of stapes of NHM UK PV M21179 (A–G) and NHM UK PV M27691 (H–N). A, H, overview of semitransparent petrosal, with stapes (red) in place within the cochlear canal.B–G, I–N, isolated stapes in external (B, I), internal (E, L), medial (C, J), lateral (F, M), anterior (D, K), and posterior (G, N) views, based on µCT data.Abbreviations:ab, anterior bend; ac, anterior crus; pc, posterior crus; sfp, stapedial footplate. A and H are at the same scale (0.5 mm), and B–G and I–N are at same scale (0.3 mm).	Figure 7. Rendering of 3D virtual models of stapes of NHM UK PV M21179 (A–G) and NHM UK PV M27691 (H–N). A, H, overview of semitransparent petrosal, with stapes (red) in place within the cochlear canal.B–G, I–N, isolated stapes in external (B, I), internal (E, L), medial (C, J), lateral (F, M), anterior (D, K), and posterior (G, N) views, based on µCT data.Abbreviations:ab, anterior bend; ac, anterior crus; pc, posterior crus; sfp, stapedial footplate. A and H are at the same scale (0.5 mm), and B–G and I–N are at same scale (0.3 mm).	2024-05-21	Hoffmann, Simone;Malik, Ramza Shahid;Vidyasagan, Anjun;Gill, Pamela		Zenodo	biologists	Hoffmann, Simone;Malik, Ramza Shahid;Vidyasagan, Anjun;Gill, Pamela			
