Ronheim (Oligocene of Germany)

Where: Germany (48.8° N, 10.7° E: paleocoordinates 48.3° N, 7.1° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Early/Lower Oligocene (33.9 - 28.4 Ma)

• "Suevium moyen"

•According to Heissig (1984) the sediments are not in layers, do not indicate any fluviatile current, and the distribution of the fossils in the karstic system is irregular.

•JA: Suevian is early Oligocene

Environment/lithology: lacustrine; siliciclastic sediments

• Interpreted as "a field of fresh water (Lake, mud pit)."
• Sediments of Ronheim first described by Trischler and Winkler (1968).

Size class: macrofossils

Collection methods: Institut de Paléontologie et Géologie historique de l'Université de Munich

Primary reference: M.-C. Groessens-Van Dyck and H. H. Schleich. 1985. Nouveaux matériels de reptiles du Tertiaire d'Allemagne; 4, Nouveaux matériels des Tortues (Ptychogaster/Ergilemys) de la localité Oligocène moyen de Ronheim (Sud de l'Allemagne). [New finds of Tertiary Reptilia in West Germany; New turtles (Ptychogaster/Ergilemys) of the middle Oligocene in Ronheim, southern Germany.]. Muenchner Geowissenschaftliche Abhandlungen, Reihe A: Geologie und Palaeontologie, Munich 4:17-66 [J. Alroy/R. Whatley/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 36984: authorized by John Alroy, entered by Robin Whatley on 21.02.2004, edited by Matthew Carrano and Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Temnospondyli - Albanerpetontidae
Albanerpeton sp.1 Estes and Hoffstetter 1976 tetrapod
Reptilia
 Testudines - Pantestudinidae
Ergilemys sp. Ckhikvadze 1972 turtle
 Testudines - Pangeoemydidae
Ptychogaster ronheimensis n. sp. Groessens-Van Dyck and Schleich 1985 turtle
500 shell elements
 Squamata - Anguidae
? Ophisaurus sp. Daudin 1803 glass lizard
"Osteoderme"
Mammalia
 Rodentia - Theridomyidae
Isoptychus sp. Pomel 1853 rodent
Suevosciurus fraasi Major 1873 rodent
Suevosciurus ehingensis Dehm 1937 rodent
 Rodentia - Pseudosciuridae
 Rodentia - Aplodontidae
Plesispermophilus angustidens2 Filhol 1882 mountain beaver
 Perissodactyla - Rhinocerotidae
Ronzotherium cf. filholi Osborn 1900 rhinoceros
 Perissodactyla - Eggysodontidae
Eggysodon sp. Roman 1910 odd-toed ungulate
 Perissodactyla - Pachynolophidae
Plagiolophus cf. minor Cuvier 1804 odd-toed ungulate
 Artiodactyla - Suidae
 Artiodactyla - Dichobunidae
Dichobune fraasi Schlosser 1902 even-toed ungulate
 Artiodactyla - Entelodontidae
Entelodon degulhemi even-toed ungulate
 Artiodactyla - Anoplotheriidae
Dacrytherium ovinum Owen 1857 even-toed ungulate
Diplobune quercyi Filhol 1877 even-toed ungulate
Diplobune bavarica Fraas 1870 even-toed ungulate
 Artiodactyla - Cainotheriidae
Paroxacron bergeri Heissig 1978 even-toed ungulate
Plesiomeryx cadurcensis Gervais 1873 even-toed ungulate
 Artiodactyla - Anthracotheriidae
Bunobrachyodus sp. Deperet 1908 anthracothere
 Artiodactyla - Choeropotamidae
Tapirulus aff. hyracinus Gervais 1850 even-toed ungulate
 Artiodactyla - Gelocidae
Gelocus villebramarensis Brunet and Jehenne 1976 ruminant
Bachitherium curtum Filhol 1877 ruminant
 Artiodactyla - Palaeomerycidae
? Amphitragulus sp. Pomel 1847 ruminant