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Alajuela, Panamá District, Panamá Province, Panama

Formation	Alajuela
Age:	11.6 - 7.2 Ma Miocene
Interval	Tortonian
Lithology	sandstone
Number of Collections	1
Number of Occurrences	76

Recorded Sample Locations

Location	Region	Stratigraphic Name
Lago Alajuela	Panamá District, Panamá Province, Panama	Alajuela

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Palmoxylon sp. genus	6	Plantae : Tracheophyta : Liliopsida : Arecales : Arecaceae : *Palmoxylon*	11.62 - 7.246 Ma Miocene
Fabaceae family	5	Plantae : Tracheophyta : Magnoliopsida : Fabales : Fabaceae	11.62 - 7.246 Ma Miocene
Phyllanthaceae family	5	Plantae : Tracheophyta : Magnoliopsida : Malpighiales : Phyllanthaceae	11.62 - 7.246 Ma Miocene
Malvaceae family	5	Plantae : Tracheophyta : Magnoliopsida : Malvales : Malvaceae	11.62 - 7.246 Ma Miocene
Sapindaceae family	5	Plantae : Tracheophyta : Magnoliopsida : Sapindales : Sapindaceae	11.62 - 7.246 Ma Miocene
Polychaeta class	3	Animalia : Annelida : Polychaeta	11.62 - 7.246 Ma Miocene
Tamiosoma sp. genus	6	Animalia : Arthropoda : Maxillopoda : Sessilia : Balanidae : *Tamiosoma*	11.62 - 7.246 Ma Miocene
Callianassidae family	5	Animalia : Arthropoda : Malacostraca : Decapoda : Callianassidae	11.62 - 7.246 Ma Miocene
Hippoporidra sp. genus	6	Animalia : Bryozoa : Gymnolaemata : Cheilostomatida : Hippoporidridae : *Hippoporidra*	11.62 - 7.246 Ma Miocene
Plagioeciidae family	5	Animalia : Bryozoa : Stenolaemata : Cyclostomatida : Plagioeciidae	11.62 - 7.246 Ma Miocene
Aves class	3	Animalia : Chordata : Aves	11.62 - 7.246 Ma Miocene
Carcharhinus sp. genus	6	Animalia : Chordata : Elasmobranchii : Carcharhiniformes : Carcharhinidae : *Carcharhinus*	11.62 - 7.246 Ma Miocene
Negaprion brevirostris species	7	Animalia : Chordata : Elasmobranchii : Carcharhiniformes : Carcharhinidae : Negaprion : *Negaprion brevirostris*	11.62 - 7.246 Ma Miocene
? no name ?	100		11.62 - 7.246 Ma Miocene
Sphyrna sp. genus	6	Animalia : Chordata : Elasmobranchii : Carcharhiniformes : Sphyrnidae : *Sphyrna*	11.62 - 7.246 Ma Miocene
Otodus megalodon species	7	Animalia : Chordata : Chondrichthyes : Lamniformes : Otodontidae : Otodus : *Otodus megalodon*	11.62 - 7.246 Ma Miocene
Myliobatis sp. genus	6	Animalia : Chordata : Elasmobranchii : Myliobatiformes : Myliobatidae : *Myliobatis*	11.62 - 7.246 Ma Miocene
Rhinoptera sp. genus	6	Animalia : Chordata : Chondrichthyes : Myliobatiformes : Myliobatidae : *Rhinoptera*	11.62 - 7.246 Ma Miocene
Pristis sp. genus	6	Animalia : Chordata : Elasmobranchii : Rhinopristiformes : Pristidae : *Pristis*	11.62 - 7.246 Ma Miocene
Tayassuidae family	5	Animalia : Chordata : Mammalia : Artiodactyla : Tayassuidae	11.62 - 7.246 Ma Miocene
Carnivora order	4	Animalia : Chordata : Mammalia : Carnivora	11.62 - 7.246 Ma Miocene
Cormohipparion sp. genus	6	Animalia : Chordata : Mammalia : Perissodactyla : Equidae : *Cormohipparion*	11.62 - 7.246 Ma Miocene
Dinohippus sp. genus	6	Animalia : Chordata : Mammalia : Perissodactyla : Equidae : *Dinohippus*	11.62 - 7.246 Ma Miocene
Gomphotherium sp. genus	6	Animalia : Chordata : Mammalia : Proboscidea : Gomphotheriidae : *Gomphotherium*	11.62 - 7.246 Ma Miocene
Dugongidae family	5	Animalia : Chordata : Mammalia : Sirenia : Halitherium : Dugongidae	11.62 - 7.246 Ma Miocene
Tomistominae subfamily	5.3	Animalia : Chordata : Reptilia : Crocodylia : Tomistominae	11.62 - 7.246 Ma Miocene
Cheloniidae family	5	Animalia : Chordata : Reptilia : Testudines : Cheloniidae	11.62 - 7.246 Ma Miocene
Bairdemys sp. genus	6	Animalia : Chordata : Reptilia : Testudines : Podocnemididae : *Bairdemys*	11.62 - 7.246 Ma Miocene
Testudinidae family	5	Animalia : Chordata : Reptilia : Testudines : Testudinidae	11.62 - 7.246 Ma Miocene
Clypeaster sp. genus	6	Animalia : Echinodermata : Echinoidea : Clypeasteroida : Clypeasteridae : *Clypeaster*	11.62 - 7.246 Ma Miocene
Arcidae family	5	Animalia : Mollusca : Bivalvia : Arcida : Arcidae	11.62 - 7.246 Ma Miocene
Gastrochaenidae family	5	Animalia : Mollusca : Bivalvia : Gastrochaenida : Gastrochaenidae	11.62 - 7.246 Ma Miocene
Venericardia sp. genus	6	Animalia : Mollusca : Bivalvia : Carditida : Carditidae : *Venericardia*	11.62 - 7.246 Ma Miocene
Panopea sp. genus	6	Animalia : Mollusca : Bivalvia : Hiatellida : Hiatellidae : *Panopea*	11.62 - 7.246 Ma Miocene
Yoldiidae family	5	Animalia : Mollusca : Bivalvia : Nuculanida : Yoldiidae	11.62 - 7.246 Ma Miocene
Crassostrea sp. genus	6	Animalia : Mollusca : Bivalvia : Ostreida : Ostreidae : *Crassostrea*	11.62 - 7.246 Ma Miocene
Anomia sp. genus	6	Animalia : Mollusca : Bivalvia : Pectinida : Anomiidae : *Anomia*	11.62 - 7.246 Ma Miocene
Euvola sp. genus	6	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : *Euvola*	11.62 - 7.246 Ma Miocene
Nodipecten sp. genus	6	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : *Nodipecten*	11.62 - 7.246 Ma Miocene
Plicatula sp. genus	6	Animalia : Mollusca : Bivalvia : Pectinida : Plicatulidae : *Plicatula*	11.62 - 7.246 Ma Miocene
Corbulidae family	5	Animalia : Mollusca : Bivalvia : Myida : Corbulidae	11.62 - 7.246 Ma Miocene
Ensis sp. genus	6	Animalia : Mollusca : Bivalvia : Adapedonta : Pharidae : *Ensis*	11.62 - 7.246 Ma Miocene
Chione sp. genus	6	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : *Chione*	11.62 - 7.246 Ma Miocene
Chionopsis sp. genus	6	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : *Chionopsis*	11.62 - 7.246 Ma Miocene
Lirophora sp. genus	6	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : *Lirophora*	11.62 - 7.246 Ma Miocene
Macrocallista sp. genus	6	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : *Macrocallista*	11.62 - 7.246 Ma Miocene
Pitar sp. genus	6	Animalia : Mollusca : Bivalvia : Venerida : Veneridae : *Pitar*	11.62 - 7.246 Ma Miocene
Coleoidea subclass	3.3	Animalia : Mollusca : Cephalopoda : Coleoidea	11.62 - 7.246 Ma Miocene
Haminoeidae family	5	Animalia : Mollusca : Gastropoda : Cephalaspidea : Haminoeidae	11.62 - 7.246 Ma Miocene
Cymatophos sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Nassariidae : *Cymatophos*	11.62 - 7.246 Ma Miocene
Conus sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Conidae : *Conus*	11.62 - 7.246 Ma Miocene
Marginellidae family	5	Animalia : Mollusca : Gastropoda : Neogastropoda : Marginellidae	11.62 - 7.246 Ma Miocene
Melongena sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Melongenidae : *Melongena*	11.62 - 7.246 Ma Miocene
Oliva sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Olividae : *Oliva*	11.62 - 7.246 Ma Miocene
Olivella sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Olividae : *Olivella*	11.62 - 7.246 Ma Miocene
Terebra sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Terebridae : *Terebra*	11.62 - 7.246 Ma Miocene
Turbinella sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Turbinellidae : *Turbinella*	11.62 - 7.246 Ma Miocene
Turridae family	5	Animalia : Mollusca : Gastropoda : Neogastropoda : Turridae	11.62 - 7.246 Ma Miocene
Architectonicidae family	5	Animalia : Mollusca : Gastropoda : Architectonicidae	11.62 - 7.246 Ma Miocene
Calyptraea sp. genus	6	Animalia : Mollusca : Gastropoda : Littorinimorpha : Calyptraeidae : *Calyptraea*	11.62 - 7.246 Ma Miocene
Cypraeidae family	5	Animalia : Mollusca : Gastropoda : Littorinimorpha : Cypraeidae	11.62 - 7.246 Ma Miocene
Naticidae family	5	Animalia : Mollusca : Gastropoda : Littorinimorpha : Naticidae	11.62 - 7.246 Ma Miocene
Strombus sp. genus	6	Animalia : Mollusca : Gastropoda : Littorinimorpha : Strombidae : *Strombus*	11.62 - 7.246 Ma Miocene
Malea sp. genus	6	Animalia : Mollusca : Gastropoda : Littorinimorpha : Tonnidae : *Malea*	11.62 - 7.246 Ma Miocene
Xenophora sp. genus	6	Animalia : Mollusca : Gastropoda : Xenophoridae : *Xenophora*	11.62 - 7.246 Ma Miocene
Cerithiidae family	5	Animalia : Mollusca : Gastropoda : Cerithiidae	11.62 - 7.246 Ma Miocene
Turritellidae family	5	Animalia : Mollusca : Gastropoda : Turritellidae	11.62 - 7.246 Ma Miocene
Scaphopoda class	3	Animalia : Mollusca : Scaphopoda	11.62 - 7.246 Ma Miocene

References

MacFadden B.J., Morgan G.S., et al (2015) Gomphothere proboscidean (Gomphotherium) from the late Neogene of Panama, Journal of Paleontology 89 2, 360-365 doi:10.1017/jpa.2014.31

MacFadden B. J., Jones D. S., et al (2017) Integrated Chronology, Flora and Faunas, and Paleoecology of the Alajuela Formation, Late Miocene of Panama, PLoS One 12 1, e0170300 doi:10.1371/journal.pone.0170300

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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