Form and function of the pelvic girdle of Thalattosuchia and Dyrosauridae (Crocodyliformes) Author Scavezzoni, Isaure Universite de Liège, Evolution and Diversity Dynamics Lab, All. du Six Août 14, 4000 Liège (Belgique) isaure. scavezzoni @ gmail. com v. fischer @ uliege. be isaure.scavezzoni@gmail.com Author Fischer, Valentin Universite de Liège, Evolution and Diversity Dynamics Lab, All. du Six Août 14, 4000 Liège (Belgique) isaure. scavezzoni @ gmail. com v. fischer @ uliege. be v.fischer@uliege.be Author Johnson, Michela M. Department of Palaeontology, Staatliches Museum für Naturkunde Stuttgart, Museum am LÖwentor, Rosenstein 1, 70191 Stuttgart (Germany) michela. johnson @ smns-bw. de michela.johnson@smns-bw.de Author Jouve, Stéphane Sorbonne Universite, BUPMC - Pôle Collections, Tour Zamansky, 15 étage, bureau 1513, 4 place Jussieu, 75252 Paris Cedex 05 (France) stephane. jouve @ sorbonne-universite. fr stephane.jouve@sorbonne-universite.fr text Geodiversitas 2024 2024-05-02 46 6 135 326 https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/g2024v46a6.pdf journal article 295404 10.5252/geodiversitas2024v46a6 9a38af1b-9ef6-4d1a-b7bb-833bfd001838 1638-9395 11106598 urn:lsid:zoobank.org:pub:6ACF6A79-9149-4781-808D-478668673EB6

TABLE 8. — List of measurements in mm of crocodyliformes ischia. When measurements are missing on the first ischium, it takes measurements from next ischium. NHMUK PV R 4763 shaft reconstructed.Abbreviations: Hd, total height from posterior peduncle to tip of posterior process; PP.h, height of posterior process tip; AP.h, base height of anterior process; AP.w, total length of anterior process; BL.l, total length of ischial blade; GAP.w, base length of acetabular perforation; GAP.h, max height of acetabular perforation; PPed.Ll, anteroposterior length of posterior peduncle taken laterally; PPed.Wa, mediolateral width of posterior peduncle taken anteriorly; BR.l, total length of peduncle bridge; APed.w, mediolateral width of anterior peduncle; APed.h, dorsoventral height of anterior peduncle; Arch.l, anterior arch length from anterior peduncle to anterior process; Arch.h, maximal depth between base arch and bone margin; S, length from proximal extremity to maximal constriction; C, anteroposterior width of constriction.

								GAP.	GAP.	PPed.	PPed.		APed.	APed.	Arch.	Arch.
	Taxon	Inventory number	Hd	PP.h	AP.h	AP.w	BL.l	w	h	Ll	Wa	BR.l	w	h	l	h	S	C
1	Alligator sinensis	NHMW 37966	67.41	–	–	–	46.58	15.89	4.21	18.52	19.19	18.52	13.33	17.99	43.61	7.76	–	–
2	Caiman crocodilus	NHMW 30900	66.79	–	–	–	35.59	16.74	5.30	16.27	18.84	19.38	15.04	12.69	47.33	8.30	–	–
3	Crocodylus niloticus	NHMW 31.137	106.13	16.56	–	–	63.55	28.60	7.17	24.37	35.74	29.64	26.64	22.79	72.65	4.25	–	–
4	Mecistops cataphractus	RBINS 18374	68.65	–	0.00	0.00	34.28	15.17	10.10	22.01	23.43	23.23	18.14	18.78	53.44	11.61	24.88	12.17
5	Acherontisuchus guajiraensis	UF/IGM 38	272.00	–	–	–	145.00	66.81	11.81	44.65	19.40	45.42	58.29	31.44	42.00	5.06	106.05	57.98
6	Dyrosaurus maghribensis	OCP DEK-GE 252	205.29	31.93	68.22	25.61	134.64	37.41	23.03	53.36	–	45.76	66.89	28.89	97.20	18.85	112.24	74.52
7	Dyrosaurus maghribensis	OCP DEK-GE 255	250.12	38.36	58.01	21.48	147.21	47.81	–	–	–	57.98	–	–	119.65	16.32	110.23	80.11
8	Hyposaurus natator	AMNH FARB 2390	–	–	–	–	–	37.53	6.93	–	34.89	34.54	30.03	20.60	–	–	–	–
9	Hyposaurus natator	YPM VP.000985	–	–	–	–	–	16.01	15.90	20.28	27.30	35.54	39.24	21.03	–	–	–	–
10	Hyposaurus natator	YPM VP.000753	172.00	–	–	–	–	29.36	21.92	29.81	35.07	48.10	47.40	23.15	31.61	9.04	–	–
11	Hyposaurus natator	NJSM 23368	137.64	12.23	34.68	20.14	86.13	34.65	21.14	23.81	30.04	34.33	43.35	34.36	57.69	16.70	56.14	33.72
12	Pelagosaurus typus	SMNS 17758	12.59	1.91	2.64	1.97	13.19	2.38	1.01	4.12	–	2.39	1.28	–	7.19	2.75	4.29	3.90
13	Pelagosaurus typus	SMNS 80065	34.87	5.58	8.55	6.58	40.15	6.20	2.51	10.51	–	9.09	2.09	–	23.80	9.65	12.01	9.75
14	Pelagosaurus typus	BRLSI M.1410	–	–	15.33	10.25	–	10.48	4.42	12.83	–	14.68	4.95	–	40.46	12.83	20.41	15.43
15	Pelagosaurus typus	BRLSI M.1424	67.18	8.52	19.06	–	–	13.58	4.13	10.74	–	16.56	3.51	–	–	–	18.65	15.10
16	Pelagosaurus typus	NHMUK PV OR 32605	52.32	–	–	–	–	–	–	11.70	–	–	–	–	–	–	–	–
17	Thalattosuchus superciliosus	PMU 35988	103.80	16.92	22.95	18.67	103.05	9.83	4.28	21.33	15.99	15.79	8.95	6.94	58.07	19.76	21.51	30.10
18	Thalattosuchus superciliosus	NHMUK PV R 2054	120.10	18.68	25.54	–	–	15.59	3.64	25.85	18.56	25.12	8.97	11.34	–	–	25.72	33.67
19	Thalattosuchus superciliosus	NHMUK PV R 1530	115.29	–	22.88	19.58	114.97	11.81	5.51	18.45	23.88	23.35	8.71	9.97	64.28	24.46	28.95	34.95
20	Thalattosuchus superciliosus	GLAHM V1005	15.61	17.60	25.97	22.73	108.75	–	–	25.95	23.66	–	–	–	–	–	24.31	32.51
21	Thalattosuchus superciliosus	GLAHM V950	–	–	26.15	20.66	–	12.31	4.01	26.79	28.94	27.76	11.60	15.89	74.07	24.67	24.68	33.15
22	Thalattosuchus superciliosus	GLAHM V960	–	–	20.61	10.75	–	11.29	3.20	20.17	19.74	22.35	8.32	6.52	58.76	15.53	21.47	29.48
23	Thalattosuchus superciliosus	GLAHM V1142	103.41	14.59	22.57	–	94.13	14.36	2.46	19.88	14.47	24.29	7.63	6.30	–	–	21.02	29.74
24	Cricosaurus albersdoerferi	BMMS-BK 1-2	–	–	–	–	–	–	–	17.72	–	10.84	8.13	–	–	–	14.99	18.61
25	Cricosaurus bambergensis	NKMB-P-Watt14/274	–	–	13.31	7.94	36.12	–	–	–	–	8.65	3.81	–	25.01	8.12	–	9.09
26	Cricosaurus suevicus	GPIT RE 7322	42.32	13.13	12.84	9.47	41.65	2.61	–	6.13	–	6.33	3.33	–	24.36	7.10	13.51	14.90
27	Cricosaurus araucanensis	MLP 72-IV-7-1	–	–	–	–	–	9.45	2.84	16.25	12.04	14.73	8.82	6.57	–	–	–	–
28	Cricosaurus araucanensis	MLP 72-II-27-6	–	–	–	–	–	–	–	–	–	14.20	6.50	–	–	–	14.90	15.60
29	Metriorhynchus brachyrhynchus	NHMUK PV R 3804	–	–	31.56	29.45	–	10.97	–	38.36	34.01	30.61	26.30	14.17	68.50	22.27	31.42	47.46
30	Metriorhynchus brachyrhynchus	LEICT G.418.1956-58	157.23	–	–	–	–	11.85	2.73	51.00	–	–	14.50	18.80	–	–	33.18	50.88
31	Metriorhynchus brachyrhynchus	NHMUK PV R 4763	88.51	17.68	18.65	15.96	96.76	13.35	4.61	22.76	17.84	13.91	6.35	8.38	57.04	19.79	19.86	25.02
32	Tyrannoneustes lythrodectikos	GLAHM V972	–	–	–	–	–	–	–	–	16.83	–	–	–	–	–	21.76	37.48
33	Geosaurus giganteus	NHMUK PV R 1230	–	–	13.25	10.76	–	–	–	–	–	12.84	5.77	–	25.00	12.16	–	–
34	Dakosaurus maximus	SMNS 8203	113.82	64.15	47.13	40.29	186.00	–	–	59.97	41.40	–	–	–	103.92	33.40	42.03	66.04
35	Torvoneustes carpenteri	Cd7203	177.40	44.93	43.83	39.27	167.16	23.25	7.04	34.40	22.21	40.49	10.02	11.23	112.35	37.03	43.34	49.03
36	Aeolodon priscus	NHMUK PV R 1086	26.19	6.24	7.18	6.19	28.53	3.71	0.81	6.69	–	4.55	1.74	–	15.68	6.56	6.45	9.74
37	Sericodon jugleri	MJSN SCR010-312	–	–	–	–	–	15.89	5.28	25.95	26.95	21.20	8.90	19.34	–	–	–	–
38	Teleosaurus sp.	OUMNH.J1638	148.82	26.20	–	–	–	–	–	36.16	–	–	–	–	–	–	41.00	36.71
39	Teleosaurus sp.	NHMUK PV R 238	–	–	28.65	15.97	–	–	–	25.12	–	27.82	9.98	–	65.24	25.61	35.05	29.58
40	Platysuchus multiscrobiculatus	SMNS9930	81.45	18.25	21.78	15.71	86.66	–	–	–	13.01	–	–	–	–	–	32.59	27.50
41	Macrospondylus bollensis	SMNS 16848	96.45	15.29	18.85	14.20	101.90	14.02	7.50	22.28	3.58	24.12	9.63	5.52	45.36	19.66	31.25	28.88
42	Macrospondylus bollensis	SMNS 9428	74.90	11.18	–	–	–	6.89	8.89	19.42	–	18.89	5.67	–	–	–	22.86	21.79
43	Macrospondylus bollensis	SMNS 17484a	91.98	12.17	24.00	13.78	94.20	17.36	8.95	19.54	11.82	20.21	6.69	7.39	53.95	16.01	22.38	29.27
44	Macrospondylus bollensis	PMU 35980	112.23	15.26	–	–	–	21.27	2.60	26.17	–	27.73	10.60	15.55	91.85	21.82
45	Macrospondylus bollensis	NHMUK PV R 5703	–	–	–	–	–	27.20	9.81	28.29	33.32	32.95	9.93	20.76	–	–	36.03	35.53
46	Steneosaurus bollensis	SMNS 15712a	–	–	–	–	–	–	–	–	–	–	–	–	–	–
	Taxon	Inventory number	Hd	PP . h	AP. h	AP. w	BL.l	w	h	Ll	Wa	BR . l	w	h	l	h	S	C
47	Charitomenosuchus leedsi	NHMUK PV R 3806	127.34	27.65	29.05	–	–	20.07	11.94	24.06	26.99	28.83	10.15	17.51	–	–	36.39	28.76
48	Proexochokefalos cf. bouchardi	MJSN SCR 010 - 374	131.66	41.22	–	–	136.58	17.61	6.57	34.30	25.65	28.99	10.53	20.99	87.81	29.29	40.19	33.36
49	Neosteneosaurus edwardsi	NHMUK PV R 3701	125.59	16.55	–	–	–	21.57	4.86	25.66	25.68	26.88	8.81	12.69	–	–	28.26	37.73
50	Neosteneosaurus edwardsi	NHMUK PV R 2865	165.82	34.59	48.82	33.86	173.21	27.24	9.93	37.82	35.71	31.67	15.77	21.44	89.25	35.59	43.78	49.30
51	Neosteneosaurus edwardsi	NHMUK PV R 3898	234.14	27.24	60.04	–	256.40	–	–	54.43	53.94	–	–	–	–	–	53.35	66.31
52	Lemmysuchus obtusidens	NHMUK PV R 3168	203.00	53.22	51.91	47.02	206.50	28.73	11.30	52.17	51.67	32.70	20.41	31.33	87.00	43.53	55.26	54.59