ammonites
banner
Gateway to the Paleobiology Database
Seaboard Air Line Railroad Company (Miocene of the United States)

Where: Leon County, Florida (30.3° N, 84.2° W: paleocoordinates 30.7° N, 80.5° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: lower Member (Torreya Formation), Hemingfordian (20.4 - 16.0 Ma)

• from five successive beds with thicknessess of 1-2", 12-20", 1-2", 3-4", and 14-16"; the second bed is the "primary vertebrate zone" and the first is "part of primary vertebrate zone"

• group of beds-level stratigraphic resolution

Environment/lithology: estuary or bay; shelly/skeletal, green, yellow sandstone

• "an estuarine type of shoreline of a shallow Miocene sea... The vertebrates were contained in both the oyster bar and in the sediments immediately below the bar"
• first bed is "sand, light yellowish gray, quartz, medium grained, loose subrounded particles"; second is "sand, light greenish gray in color, quartz, medium grained, containing broken [oyster] shell fragments and whole shells"; third is "clay, dark yellowish orange, with laminae of quartz sand, moderately yellow-brown" including "Limestone fragments"; fourth is "sand, dark yellowish brown, quartz, medium grained in a clay matrix"; fifth includes "Individual oyster shells... lying horizontally, strongly cemeted [sic] together"

Size classes: macrofossils, mesofossils

Collected by S. J. Olsen, R. Cantwell, C. Cox

Collection methods: salvage, quarrying,

• "The fossil remains came to light during dragline operations... while making a road cut"

Primary reference: S. J. Olsen. 1964. The stratigraphic importance of a Lower Miocene vertebrate fauna from north Florida. Journal of Paleontology 38(3):477-482 [J. Alroy/J. Alroy/J. Alroy] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 18586: authorized by John Alroy, entered by John Alroy on 30.04.1994

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)