A new monachine seal (Monachinae, Phocidae, Mammalia) from the Miocene of Cerro La Bruja (Ica department, Peru) Author Dewaele, Leonard Directorate of Earth and History of Life, Royal Belgian Institute of Natural Sciences, 29 Rue Vautier, Brussels 1000 (Belgium) and FunMorph Lab, Department of Biology, Antwerp University, Campus Drie Eiken, 1 Universiteitsplein, Antwerp 2610 (Belgium) and EDDy Lab, Department of Geology, Liège University, Quartier Agora, 14 Allée du six Août, Liège 4000 (Belgium) Author Muizon, Christian de Départment Origines et Évolution, CR 2 P URM 7207 (MNHN, CNRS, Sorbonne Université), Muséum national d’Histoire naturelle, 57 rue Cuvier, 75231 Paris cedex 05 (France) text Geodiversitas 2024 2024-02-15 46 3 31 100 https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/g2024v46a3.pdf journal article 288381 10.5252/geodiversitas2024v46a3 8640f6be-b3a6-45ac-93ac-f522e14c3eba 1638-9395 10671140 urn:lsid:zoobank.org:pub:D352D32F-9010-4E2D-ABEF-B890D7BD630D

TABLE 2. — Comparative measurements (in mm) of the crania of Magophoca brevirostris n. gen., n. sp. in comparison with other Monachinae and selected Phocinae. Abbreviations: BZW, bizygomatic width; BCW, bicondylar width; GLFW, width at level of lateral edges of glenoid fossae; MPW, width between mastoid processes; PLWM1, palate width at level of posterior root of M1s; WAC, maximum width of alveolus of upper canine; WRPP, width of rostrum at preorbital processes; e, estimate.

Specimen	BZW	MPW	WRPP	PLWM1	BCW	GLFW
Magophoca brevirostris n. gen., n. sp.	–	–	– 31.9 × 2 = 63.8 –			–
(MNHN.F.PPI276; male)
Magophoca brevirostris n. gen., n. sp.	–	–	–	–	–	–
(MNHN.F.PPI278; male?)
Magophoca brevirostris n. gen., n. sp.	132e	120.7	–	–	58.3	122.6
(MNHN.F.PPI277; female?)
Magophoca brevirostris n. gen., n. sp.	136	129.5	49e	63e	60.3	130
(MNHN.F.PPI269; female?)
Other extinct Monachinae
Acrophoca longirostris (MNHN.F.SAS563)	63 × 2 = 126e	38.75 × 2 =	–	41.2	31.5 × 2 = 63e 63 × 2 = 126e
		77.5e
Acrophoca longirostris (MNHN.F.SAS1654)	66 × 2 = 132e 58 × 2 = 116e		57e	–	30.5 × 2 = 61e 60 × 2 = 120e
Hadrokirus martini (MUSM 1662)	140	122	113.6	66.6	47e	129.2
Hadrokirus martini (MUSM 340)	200.5	170.5	–	87.5	71.1	190.6
Homiphoca capensis (SAM-PQ-L30080)	145	128.5	85.3	61	57.5	130.5
Piscophoca pacifica (MNHN.F.SAS564)	152	139e	72.5	69.2	63.8	144.1
Extant Monachini
Monachus monachus (USNM 219059)	194.8	172.6	71.1	71.4	62.4	183.0
Monachus monachus (MNHN-ZM-AC-A7953)	214	181.5	81	76.5	71.2	191
Neomonachus schauinslandi (USNM 243838; male)	157.4	158.6	47.9	68.2	60.7	152.6
Neomonachus schauinslandi (USNM 243839; female) 155.9		152.3	50.8	71.5	62.0	148.2
Neomonachus tropicalis (USNM 100363; male)	167.0	147.6	46.3	71.4	62.4	157.4
Neomonachus tropicalis (USNM 100371; female)	167.3	147.9	49.4	73.3	65.3	154.7
Extant Lobodontini
Hyrdrurga leptonyx (USNM 396931)	219.6	184.1	108.5	95.2	75.8	205.9
Hydrurga leptonyx (USNM 550360; male)	190.0	193.4	98.4	78.7	80.6	193.4
Leptonychotes weddellii (USNM 269526; male)	154.7	174.1	49.1	52.6	75.5	154.2
Leptonychotes weddellii (USNM 269526; female)	165.5	172.1	49.6	57.3	77.6	160.5
Leptonychotes weddellii (USNM 395811)	152.9	170.6	51.7	51.7	74.0	153.4
Lobodon carcinophaga (USNM 550080; female)	131.7	147.8	76.4	61.7	76.3	136.3
Lobodon carcinophaga (USNM 550083; male)	140.0	152.8	80.1	62.7	78.9	138.6
Ommatophoca rossii (USNM 275206; male)	160.3	160.4	75.9	58.6	79.0	150.1
Ommatophoca rossii (US3NM 339989; female)	151.9	157.5	71.3	53.4	77.4	146.1
Extant Phocinae
Pagophilus groenlandicus (USNM 188790; male)	111.3	111.6	30.0	43.7	58.0	105.4
Pagophilus groenlandicus (USNM 188791; female)	102.8	109.7	27.0	45.0	57.6	101.2
Phoca vitulina concolor (USNM 504298; male)	130.4	125.1	34.3	54.5	56.1	114.0
Phoca vitulina concolor (USNM 593947; female)	126.3	117.5	33.4	49.4	58.6	109.3
Phoca vitulina concolor (USNM 594207; female)	125.8	114.9	27.8	55.2	55.5	106.7