PBDB Collection

Mazaterón (Eocene of Spain)

Also known as La Solana

Where: Castilla y Leon, Spain (41.5° N, 2.1° W: paleocoordinates 39.6° N, 5.3° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Mazaterón Formation, Bartonian (41.3 - 38.0 Ma)

• late Robiacian (Eocene European Land Mammal Age) in age, corresponding to the MP 15-16 Paleogene reference level

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine; gray marl and sandstone

• depositional setting is a shallow lacustrine system, which was subjected to constant flooding and drying processes (e.g., Alonso-Gavilán et al., 2004; Huerta and Armenteros, 2006). In terms of the European Land Mammal Ages, it is Robiacian (Mammal Paleogene [MP] 15– 16) in age (Cuesta, 1991, 1999; Antunes et al., 1997).

• The deposit is in carbonate facies, in small sandstone or conglomeratic lenses, extending 400 m laterally, and 5-8 m thick.

•the grey marls that contain the vertebrate fossils are included within the Mazaterón Formation, which consists of lacustrine-palustrine limestones and marls

Size class: macrofossils

Primary reference: E. Jiménez Fuentes, M. A. Cuesta, S. Martín Jesús, E. Mulas, E. Pérez Ramos and S. Jiménez-García. 1989. Primera nota sobre los vertebrados del Eoceno Superior de Matazarón y Deza (Soria). Stvdia Geologica Salmanticensia 5:129-133 [J. Alroy/J. Wertheim/J. Wertheim]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 40358: authorized by John Alroy, entered by Jill Wertheim on 22.06.2004, edited by Richard Butler, Albert Garcia Selles, Philip Mannion, Grace Varnham and Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Reptilia
Crocodylia -	Diplocynodon sp. Diplocynodon sp. Pomel 1847 crocodilian
Loricata -	Iberosuchus sp. Iberosuchus sp. Antunes 1975 crocodilian
Squamata -	Squamata indet.² Squamata indet.² squamates IPS128812, fragment of tooth-bearing bone; IPS128815, indeterminate fragment of tooth-bearing bone; IPS128811, isolated unicuspid tooth
Squamata - Scincidae	cf. Scincidae "indet. Morphotype 1"², cf. Scincidae "indet. Morphotype 2"² cf. Scincidae "indet. Morphotype 1"² Gray 1825 skink IPS128814, partial right maxilla. cf. Scincidae "indet. Morphotype 2"² Gray 1825 skink IPS128800, fragment of right maxilla.
Squamata - Blanidae	cf. Blanidae indet.² cf. Blanidae indet.² Kearney 2003 worm lizard IPS49832, right dentary (Figure 1e); IPS128804, anterior portion of left dentary (Figure 1f) and IPS128799, posterior portion of right dentary
Squamata - Lacertidae	Lacertidae indet.¹¹, cf. Lacertidae indet.² Lacertidae indet.¹¹ Bonaparte 1831 squamates IPS128801, fragment of right maxilla; IPS12 8813, tooth attached to bone cf. Lacertidae indet.² Bonaparte 1831 squamates
Squamata - Anguidae	Anguidae indet.², Anguinae indet.², Glyptosaurini indet.², cf. Melanosaurini indet.² Anguidae indet.² Gray 1825 squamates IPS128803, partial premaxilla (Figure 2b); IPS128810, anterior portion of right dentary Anguinae indet.² Gray 1825 squamates IPS128798, partial skull bone (Figure 2c); IPS49838, partial left frontal bone (Figure 2d); IPS128807, a partial caudal vertebra (Figure 2e); IPS128809 (Figure 2f), fragment of osteoderm; IPS49836, and IPS49840 (fragmentary body osteoderms); IPS49844, a fragmentary vertebra; IPS49841, a tooth-bearing bone with one broken tooth. Glyptosaurini indet.² Sullivan 1979 squamates IPS49833-49835, IPS128795-128797, IPS128805-128806, osteoderms cf. Melanosaurini indet.² Sullivan 1979 squamates IPS128809, osteoderm
Squamata - Iguanidae	Iguanidae indet.² Iguanidae indet.² Oppel 1811 squamates IPS128802, fragment of maxilla (Figure 2a); IPS49839, tooth-bearing bone
Testudines - Podocnemididae	Neochelys sp. Neochelys sp. Bergounioux 1954 sideneck turtle
Testudines - Testudinidae	Pelorochelon soriana n. gen. n. sp.¹⁴ Pelorochelon soriana n. gen. n. sp.¹⁴ Pérez-García et al. 2016 turtle
Testudines - Trionychidae	Trionychidae indet.¹² Trionychidae indet.¹² Gray 1825 softshell turtle
Mammalia
Creodonta -	Proviverra sp.⁵ Proviverra sp.⁵ Rütimeyer 1862 creodont
Perissodactyla - Palaeotheriidae	Cantabrotherium casanovasae n. sp.³, Leptolophus sp.⁶, "Paranchilophus remyi" = Anchilophus (Paranchilophus) remyi⁶, Franzenium durense n. sp.³, Plagiolophus mazateronensis n. sp.⁸, Palaeotherium giganteum n. sp.³, Iberolophus jimenezi n. sp.¹ Cantabrotherium casanovasae n. sp.³ Cuesta 1993 odd-toed ungulate Leptolophus sp.⁶ Remy 1965 odd-toed ungulate STUS 11565, incomplete left maxillary with P2–P3–(P4)–M1–(M2); STUS 8599, right M2; STUS 11826, right M2; STUS 11018, fragment of left M3 (labial wall not preserved); STUS 14247, right maxilla fragment with M2– M3; STUS 9201, right m3 (described in Perales-Gogenola et al. 2021) "Paranchilophus remyi" = Anchilophus (Paranchilophus) remyi⁶ Casanovas and Santafé 1989 odd-toed ungulate Franzenium durense n. sp.³ Cuesta 1993 odd-toed ungulate Plagiolophus mazateronensis n. sp.⁸ Cuesta 1994 odd-toed ungulate Palaeotherium giganteum n. sp.³ Cuesta 1993 odd-toed ungulate Iberolophus jimenezi n. sp.¹ Badiola and Cuesta 2008 odd-toed ungulate US 11800, right hemimandible, exhibiting p1 and m1 alveoli, and the p2–p4 and m2–m3 series.
Perissodactyla - Lophiodontidae	Lophiodon sp.⁹ Lophiodon sp.⁹ Cuvier 1822 odd-toed ungulate 11.816 (fragment of maxilla)
Artiodactyla - Anoplotheriidae	Anoplotheriinae indet.⁷, Duerotherium sudrei n. gen. n. sp.⁴, cf. Dacrytherium sp.⁷ Anoplotheriinae indet.⁷ Gray 1821 even-toed ungulate 11.562, fragment of maxilla Duerotherium sudrei n. gen. n. sp.⁴ Cuesta and Badiola 2009 even-toed ungulate STUS 11562, a fragment of the left maxilla, showing the P3-M3 series. cf. Dacrytherium sp.⁷ Filhol even-toed ungulate 13.624, fragment of maxilla
Artiodactyla - Xiphodontidae	cf. Leptotheridium indet.⁷, cf. Dichodon sp.⁷ cf. Leptotheridium indet.⁷ Stehlin 1910 even-toed ungulate 13.625, M2 cf. Dichodon sp.⁷ Owen even-toed ungulate 11.814, fragment of mandible
Rodentia - Theridomyidae	Pseudoltinomys crebrum n. sp.¹³, Remys ibericus¹⁰ Pseudoltinomys crebrum n. sp.¹³ Peláez-Campomanes 1996 rodent Remys ibericus¹⁰ rodent
Rodentia - Pseudosciuridae	Sciuroides cf. siderolithicus¹³ Sciuroides cf. siderolithicus¹³ Picted and Humbert 1869 rodent Teeth
Primates - Adapidae	? Adapis sp.¹⁰ ? Adapis sp.¹⁰ Cuvier 1822 primate
Primates - Notharctidae	Mazateronodon endemicus n. gen. n. sp.¹⁰ Mazateronodon endemicus n. gen. n. sp.¹⁰ Marigó et al. 2010 primate
Primates - Omomyidae	Pseudoloris cuestai n. sp.¹¹ Pseudoloris cuestai n. sp.¹¹ Minwer-Barakat et al. 2012 tarsier
Actinopteri
Siluriformes - Bagridae	Bagridae indet.¹¹ Bagridae indet.¹¹ Bleeker 1852 naked catfish

¹Badiola and Cuesta 2008; ²Bolet 2023; ³Cuesta 1993; ⁴Cuesta and Badiola 2009; ⁵Cuesta Ruiz-Colmenares 1992; ⁶Cuesta Ruiz-Colmenares 1992; ⁷Cuesta Ruiz-Colmenares 1993; ⁸Cuesta Ruiz-Colmenares 1994; ⁹Cuesta Ruiz-Colmenares 1996; ¹⁰Marigó et al. 2010; ¹¹Minwer-Barakat et al. 2012; ¹²Ortega et al. 2022; ¹³Peláez-Campomanes 1996; ¹⁴Pérez-García et al. 2016