Eurohippus

Eurohippus
E. messelensis fossil with fetus (encircled)
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Perissodactyla
Family: †Palaeotheriidae
Subfamily: †Pachynolophinae
Genus: †Eurohippus
Franzen, 2006
Type species
†Lophiodon parvulus
Species
  • †E. parvulus
  • †E. messelensis
Synonyms
  • Propalaeotherium parvulum
  • Propalaeotherium messelensis

Eurohippus is an extinct genus of equoid ungulate. Its species were long considered part of Propalaeotherium and Lophiotherium. A pregnant specimen was described in 2015.

Fossil findings

Fossils of Eurohippus have been found in Central and Western Europe and are dated to the middle to upper Eocene. The earliest fossils were discovered in the early 19th century in Argenton-sur-Creuse in France. The most notable site is the Messel Pit near Darmstadt, Germany, where at least 43 skeletons have been recovered, some of them nearly complete due to their preservation in oil shale. This makes Eurohippus the most common member of equids found there, with evidence of individuals of both sexes and various age groups. There is a significant number of Eurohippus finds documented at Geiseltal southwest of the Halle, Germany. These specimens are distributed throughout the entire stratigraphic sequence, with isolated specimens from the Lower Carboniferous, and a greater prevalence in the Middle and Upper Carboniferous. In terms of chronological placement, the Lower Carboniferous corresponds roughly to that of the Messel Pit, while Middle and Upper Carboniferous are slightly younger. The finds here consist primarily of skull and dentition remains, with a total of about three dozen specimens. Additional finds, including teeth and upper jaw fragments, have been recovered from the Prinz von Hessen Pit, also located near Darmstadt. Among the latest and northernmost finds in Europe are those from Fürstenau in Lower Saxony and Gent in Belgium, although these consist only of isolated teeth.

References

  1. ↑ Franzen, J. L. (2006). "Eurohippus n.g., a new genus of horses from the Middle to Late Eocene of Europe". Senckenbergiana Lethaea. 86: 97–102. doi:10.1007/BF03043638. S2CID 84192738.
  2. ↑ Franzen, J. L. (2006). "Eurohippus parvulus parvulus (Mammalia, Equidae) aus der Grube Prinz von Hessen bei Darmstadt (Süd-Hessen, Deutschland)". Senckenbergiana Lethaea. 86 (2): 265–269. doi:10.1007/BF03043493. S2CID 82103770.
  3. ↑ Franzen, J. L.; Aurich, C.; Habersetzer, J. (2015). "Description of a Well Preserved Fetus of the European Eocene Equoid Eurohippus messelensis". PLOS ONE. 10 (10) e0137985. Bibcode:2015PLoSO..1037985F. doi:10.1371/journal.pone.0137985. PMC 4622040. PMID 26445456.
  4. ↑ "47-Million-Year-Old Pregnant Mare Sheds Light on Ancient Horses by Laura Geggel". livescience. 7 November 2014. Retrieved 8 October 2015.
  5. ↑ Franzen, Jens Lorenz (2007). Die Urpferde der Morgenröte: Ursprung und Evolution der Pferde (1. Aufl ed.). München Heidelberg: Elsevier, Spektrum Akademischer Verlag. ISBN 978-3-8274-1680-3.
  6. ↑ Hellmund, Meinolf (2013-02-01). "Odontological and osteological investigations on propalaeotheriids (Mammalia, Equidae) from the Eocene Geiseltal Fossillagerstätte (Central Germany) - a full range of extraordinary phenomena". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 267 (2). Schweizerbart'sche Verlagsbuchhandlung: 127–154. Bibcode:2013NJGPA.267..127H. doi:10.1127/0077-7749/2013/0300.
  7. ↑ Franzen, Jens Lorenz; Haubold, Hartmut (April 1986). "Revision der Equoidea aus den Eozänen Braunkohlen des Geiseltales bel Halle (DDR)". PalaeoVertebrata. 16. Institut des sciences de l'Evolution de Montpellier and Association Palaeovertebrata: 1–34. doi:10.18563/pv.16.1.1-34. ISSN 2274-0333.
  8. ↑ Franzen, Jens Lorenz (December 2006). "Eurohippus parvulus parvulus (Mammalia, Equidae) aus der Grube Prinz von Hessen bei Darmstadt (Süd-Hessen, Deutschland)". Senckenbergiana Lethaea (in German). 86 (2): 265–269. doi:10.1007/BF03043493. ISSN 0037-2110.
  9. ↑ Franzen, Jens Lorenz; Mörs, Thomas (December 2007). "Das nördlichste Vorkommen paläogener Säugetiere in Europa". Paläontologische Zeitschrift (in German). 81 (4): 447–456. doi:10.1007/BF02990256. ISSN 0031-0220.