Where: Hernando County, Florida (28.5° N, 82.2° W: paleocoordinates 28.7° N, 77.0° W)
• coordinate based on political unit
• outcrop-level geographic resolution
When: Arikareean (29.5 - 18.5 Ma)
• Middle Arikareean
•The age of the deposit was considered to be 26–25 Ma by Tedford et al. (2004) based on mammalian biochronology. Later analysis by Czaplewski and Morgan (2012) and Morgan et al. (2019) suggested a slightly older age range of 28–26 Ma
• group of beds-level stratigraphic resolution
Environment/lithology: fissure fill; claystone and sandstone
Size classes: macrofossils, mesofossils
Primary reference: F. G. Hayes. 2000. The Brooksville 2 local fauna (Arikareean, latest Oligocene) Hernando County, Florida. Bulletin of the Florida Museum of Natural History 43(1):1-47 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 17476: authorized by John Alroy, entered by John Alroy on 15.05.2002, edited by Richard Hulbert, Patricia Holroyd, Terri Cleary, Mark Uhen, Bethany Allen and Philip Mannion
Creative Commons license: CC BY (attribution)
Taxonomic list
Echinoidea | |
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Reptilia | |
Xenochelys floridensis n. sp.2
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Anolis "morphotype A"3 Daudin 1802 anole "UF 274039 (partial dentary), 274041 (partial dentary), 274061 (frontal), 274073 (partial dentary), 274074 (partial dentary), 275606 (partial maxilla), 275608 (partial dentary), 275611 (partial dentary), 275620 (partial dentary), 275627 (left postorbital), 275629 (partial dentary), 275645-275647 (partial dentaries), 275649-650 (partial dentaries), 275653 (partial left maxilla), 275667 (braincase), 275677-275681 (frontals), 275682-275684 (left quadrates), 275685-275686 (frontals), 275693-275694 (partial maxillae), 275697 (partial dentary), 275699-275701 (partial dentaries), 278727 (left prefrontal), 278745 (left prefrontal)"
cf. Anolis "morphotype B"3 Daudin 1802 anole "UF 275662 (partial right dentary), UF 275695 (partial right dentary), UF 275696 (partial right dentary), UF 275619 (partial left dentary), UF 275665 (partial left dentary)"
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Iguanidae indet.3 Oppel 1811 squamates "UF 275612 (partial left dentary), UF 274077 (partial right dentary), UF 275644 (partial right dentary)"
Iguaninae indet.3 Cope 1886 squamates "UF 274049 (partial right dentary), UF 275635 (partial left dentary)"
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Rhineuridae indet.3 Vanzolini 1951 worm lizard "UF 268989-94 (vertebrae), UF 274047 (vertebra), UF 275673 (partial right dentary)"
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Scincidae indet.3 Gray 1825 skink "UF 274043 (partial right dentary with splenial), UF 274063 (partial right dentary), UF 274239 (partial right dentary), UF 274240 (partial right dentary), UF 274252 (right premaxilla)"
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Eublepharidae indet.3 Boulenger 1883 squamates "UF 275603 (partial left maxilla), UF 274247 (partial right dentary), UF 278770 (partial left dentary)"
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Mammalia | |
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"Phyllostomatidae indet." = Phyllostomidae5
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Koopmanycteris palaeomormoops n. gen. n. sp.7 Morgan et al. 2019 ghost-faced bat UF 157765 (holotype), right dentary with p4-m3 and alveoli for i1-p3
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Megalagus abaconis n. sp.
Megalagus abaconis n. sp. Hayes 2000 rabbit | |
Eomyidae indet. Winge 1887 rodent | |
Heliscomyidae indet. Korth et al. 1991 rodent | |
Agnotocastor sp. Stirton 1935 beaver | |
Florentiamyidae indet. Wood 1936 rodent | |
Sciuridae indet. Gray 1821 squirrel | |
"Entoptychinae indet." = Entoptychidae
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Parvericius montanus Koerner 1940 hedgehog | |
Centetodon magnus Clark 1936 placental | |
Nanotragulus loomisi Lull 1922 ruminant | |
Nothokemas waldropi Frailey 1978 camel | |
Phenacocoelinae indet. Schultz and Falkenbach 1950 oreodont | |
Miohippus sp. Marsh 1874 anchitheriine horse | |
Palaeogale minuta Gervais 1848 carnivoran | |
Arikarictis chapini n. sp., Acheronictis webbi n. sp.
Arikarictis chapini n. sp. Hayes 2000 mustelid carnivore
Acheronictis webbi n. sp. Hayes 2000 mustelid carnivore | |
Enhydrocyon cf. pahinsintewakpa Macdonald 1963 canid
Osbornodon wangi n. sp. Hayes 2000 canid
Phlaocyon taylori n. sp. Hayes 2000 bone-crushing dog | |
Amphibia | |
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