Grisolles (Eocene of France)

Where: Picardie Region, France (49.1° N, 3.3° E: paleocoordinates 47.1° N, 0.7° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Robiac zone, Calcaire de Saint-Ouen Formation, Bartonian (41.3 - 38.0 Ma)

• European Mammal Zone ('Niveau Repère') based on rodents. A stratified locality. The fossiliferous level is 3 to 4 cm thick and is located 4.5 m above a level of green marls (Mortefontaine Formation); about the same level than Robiac

• bed-level stratigraphic resolution

Environment/lithology: mire or swamp; lithified limestone

Size classes: macrofossils, mesofossils, microfossils

Preservation: mold/impression

Collection methods: Not accessible anymore

Primary reference: P. Louis and J. Sudre. 1975. Nouvelles donnees sur les primates de l'Eocene superieur europeen. Colloque international CNRS, Problemes actuels de paleontologie - evolution des vertebres (218)805-828 [E. Fara/E. Fara/E. Fara]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 12847: authorized by Emmanuel Fara, entered by Emmanuel Fara on 20.12.2001, edited by Terri Cleary, Philip Mannion and John Alroy

Creative Commons license: CC BY (attribution)

Taxonomic list

 Basommatophora - Planorbidae
Planorbis sp. Muller 1774 pulmonate
 Basommatophora - Lymnaeidae
Lymnaea sp. Lamarck 1799 pulmonate
 Amiiformes - Amiidae
Amia sp. Linnaeus 1766 bowfin
 Lepisosteiformes - Lepisosteidae
Lepisosteus sp. Agassiz 1843 gar
 Salientia -
Anura indet. frog
Pelobatidae or Palaeobatrachidae
 Testudines - Panemydidae
Emydidae indet.1 Rafinesque 1815 turtle
Aves indet. Linnaeus 1758 bird
 Loricata -
Crocodylia indet. crocodilian
 Squamata - Lacertidae
Dormaalisaurus girardoti3 Augé and Smith 2002 squamates
seven incomplete right dentaries, seven incomplete left dentaries, two incomplete left maxillae, one incomplete right maxilla
 Squamata - Necrosauridae
Necrosaurus sp.3 Filhol 1876 squamates
a few caudal vertebrae, very incomplete dentary, two jaw fragments, fifteen osteoderms
 Squamata - Anguidae
Anguidae indet. Gray 1825 squamates
Anguini indet.3 Augé 2005 squamates
Helvetisaurus "indet. Forme A"3 Augé 2005 squamates
very incomplete left dentary, incomplete right maxilla, some dorsal vertebrae. Forme B is found in Ravet.
 Squamata - Iguanidae
Geiseltaliellus sp.3 Kuhn 1944 squamates
four fragmentary left dentaries; incomplete right maxilla; four fragmentary jaws; two quadrates
Geiseltaliellus grisolli n. sp.3 Augé 2005 squamates
MNHN GRI 17405 (holotype), incomplete right dentary; MNHN collection also includes three incomplete right dentaries, three incomplete left dentaries, two incomplete left maxillae and three premaxillae
 Squamata - Boidae
Boinae "large size" Gray 1825 boa
Boinae "medium size" Gray 1825 boa
Cadurceryx sp. Hoffstetter and Rage 1972 sand boa
 Squamata - Blanidae
Louisamphisbaena ferox n. gen. n. sp.4
Louisamphisbaena ferox n. gen. n. sp.4 Auge 2012 worm lizard
MNHN GRI 17494 (holotype), incomplete right maxilla; GRI 17495, incomplete left dentary; GRI 17497, incomplete dentary; GRI 17496, incomplete left maxilla
 Squamata - Amphisbaenidae
Amphisbaenidae indet.3 Gray 1865 worm lizard
two dentaries (one left, one right)
 Squamata - Cordylidae
Pseudolacerta mucronata2 Filhol 1877 spinytail lizard
 Primates - Omomyidae
Microchoerus aff. erinaceus Wood 1844 tarsier
Pseudoloris crusafonti n. sp. Louis and Sudre 1975 tarsier
Necrolemur zitteli Schlosser 1887 tarsier
 Primates - Notharctidae
 Primates - Adapidae
Adapis parisiensis Blainville 1841 primate
 Rodentia - Theridomyidae
Blainvillimys varleti n. sp.5 rodent
GRI 699 - type
Theridomys sp. Jourdan 1837 rodent
Paradelomys crusafonti5 Thaler 1966 rodent
 Rodentia - Pseudosciuridae
Sciuroides russelli n. sp.5 Hartenberger and Louis 1976 rodent
GRI969 - type
 Rodentia - Gliridae
Glamys aff. robiacensis5 Hartenberger 1965 dormouse
Gliravus sp. Stehlin and Schaub 1951 dormouse
perhaps two species
 Tribosphenida - Nyctitheriidae
Saturninia sp. Stehlin 1940 placental
 Carnivora - Miacidae
? Miacis sp. Cope 1872 carnivoran
 Chiroptera -
Chiroptera "sp.1" Blumenbach 1779 bat
Chiroptera "sp.2" Blumenbach 1779 bat
 Ungulata - Cebochoeridae
"Cebochoerus campichii" = Acotherulum campichii6
"Cebochoerus campichii" = Acotherulum campichii6 Pictet 1855 even-toed ungulate
Cebochoerus n. subgen. (Gervachoerus) campichii
 Ungulata - Choeropotamidae
Anthracobunodon louisi n. sp.6 even-toed ungulate
 Insectivora - Apatemyidae
Apatemyidae indet. Matthew 1909 insectivoran
 Hyaenodonta -
? Proviverra sp. Rütimeyer 1862 eutherian
 Theriiformes - Herpetotheriidae
Peratherium sp. Aymard 1850 marsupial
perhaps two species