Tower 19 (Miocene of the United States)

Also known as SBCM 1.103.40

Where: San Bernardino County, California (34.8° N, 117.0° W: paleocoordinates 34.1° N, 112.7° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Unit 5 Member (Cajon Valley Beds Formation), Miocene (23.0 - 5.3 Ma)

Environment/lithology: terrestrial

Primary reference: R. E. Reynolds. 1991. Biostratigraphic relationships of Tertiary small vertebrates from Cajon Valley, San Bernardino County, California. In M.O. Woodburne, R.E. Reynolds, and D.P. Whistler, (eds.), San Bernardino County Museum Association Quarterly 38(3):54-59 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 19577: authorized by John Alroy, entered by John Alroy on 26.03.1995

Creative Commons license: CC BY (attribution)

Taxonomic list

• 1482' level in unit
Mammalia
 Perissodactyla - Equidae
Archaeohippus mourningi Merriam 1913 anchitheriine horse
Acritohippus cf. stylodontus Merriam 1919 horse
 Perissodactyla - Rhinocerotidae
cf. Aphelops sp. Owen 1845 rhinoceros
 Artiodactyla - Camelidae
Camelidae indet. Gray 1821 camel
 Artiodactyla - Palaeomerycidae
Bouromeryx sp. Skinner et al. 1977 ruminant
 Theriamorpha - Soricidae
Paradomnina cf. relictus Hutchison 1966 shrew
 Theriamorpha - Erinaceidae
Lanthanotherium sp. Filhol 1888 hedgehog
 Rodentia - Sciuridae
Petauristodon cf. uphami James 1963 squirrel
 Rodentia - Heteromyidae
Proheteromys maximus James 1963 rodent
also mentioned by Kelly and Lander 1988