La Grive L7 (Miocene of France)

Also known as La-Grive-Saint-Alban

Where: Rhône-Alpes, France (45.6° N, 5.2° E: paleocoordinates 45.9° N, 4.1° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: MN 7 + 8 (12.8 - 11.1 Ma)

• MN 7 (Astaracian) according to Rage & Holman (1984).(TL)

Environment/lithology: fissure fill; lithology not reported and limestone

• Fissure fill in Jurassic limestone (Rage & Holman, 1984). (TL)

Size classes: macrofossils, mesofossils

Collection methods: sieve,

• Specimens listed by Rage & Holman (1984) and Rage & Szyndlar (1986) are deposited in the Department of Earth Sciences of the Claude Bernard University, Lyon (FSL or UCBL).

Primary reference: J.-C. Rage and J. A. Holman. 1984. Des serpents (Reptilia, Squamata) de type nord-américain dans le Miocène Français. Évolution parallèle ou dispersion. Geobios 17(1):89-104 [J. Mueller/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 136199: authorized by Johannes Mueller, entered by Torsten Liebrecht on 22.11.2012, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

• Rage & Holman (1984) only list the type material of their snakes. Given that they report occurences of these species from other localities than Grive L7 and that Rage & Szyndlar (1986) report more than 350 bones of Natrix aff. longivertebrata, it seems probable that more material than the type specimens is present in the collections from this sublocality. Thus, specimen counts of the respective occurences are omitted here.

•Furthermore, it is assumed that the identifications by Ivanov (2002) are not based on material that was already published in earlier literature.

Osteichthyes
 Temnospondyli - Albanerpetontidae
Albanerpeton inexpectatum1 Estes and Hoffstetter 1976 tetrapod
Reptilia
 Squamata - Elapidae
Micrurus sp.2 Wagler 1824 coral snake
"probably M. gallicus"
Naja "sp. 1"2 Laurenti 1768 cobra
Naja romani2 Hoffstetter 1939 cobra
 Squamata - Colubridae
Texasophis meini Rage and Holman 1984 colubrid snake
2 vertebrae (FSL 285 006 and 007 = paratypes)
Coluber "sp. 1"2 Linnaeus 1758 racer
Coluber "sp. 2"2 Linnaeus 1758 racer
Paleoheterodon arcuatus Rage and Holman 1984 colubrid snake
Natrix "sp. 2"2 Laurenti 1768 water snake
Natrix "sp. 1"2 Laurenti 1768 water snake
Natrix aff. longivertebrata3 Szyndlar 1984 water snake
3 parabasisphenoids (UCBL no. 285075, 285076, 285452), 1 compound bone (UCBL no. 285077), and 374 trunk vertebrae (UCBL no. 285078 to 285451)
 Squamata - Crotalidae
Vipera "sp. 1"2 Laurenti 1768 pit viper
"Oriental vipers"
Vipera "sp. 2"2 Laurenti 1768 pit viper
"aspis complex"
 Squamata - Typhlopidae