Alto Guayacan (Miocene of Costa Rica)

Where: Limon, Costa Rica (9.6° N, 82.6° W: paleocoordinates 9.3° N, 81.3° W)

• coordinate stated in text

• local area-level geographic resolution

When: Uscari Formation (Limon Group), Late/Upper Miocene (11.6 - 5.3 Ma)

• Age based in Collins et al.

• formation-level stratigraphic resolution

Environment/lithology: marine; green claystone

Size class: macrofossils

Collection methods: bulk, sieve,

• Material from Museo de Zoologia de Ia Escuela de Biologia (UCR)

Primary reference: C. A. Laurito. 1999. Los selaceos fósiles de Ia localidad de Alto Guayacan ( y otros ictiolitos asociados). 168 [C. Jaramillo/C. Pimiento]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 162678: authorized by Carlos Jaramillo, entered by Catalina Pimiento on 01.10.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Actinopteri
 Acanthopteri - Sphyraenidae
Sphyraena barracuda Edwards 1771 barracuda
 Perciformes - Sparidae
Pagrus sp. Lacépède 1802 perch-like fish
 Spariformes - Sparidae
 Tetraodontiformes - Tetraodontidae
Tetraodon sp. Linnaeus 1758
 Scombriformes - Trichiuridae
Trichiurus sp. Linnaeus 1758
Chondrichthyes
 Squaliformes - Squalidae
Squalus sp. Linnaeus 1758 dogfish shark
 Squaliformes - Dalatiidae
Isistius triangulus Probst 1879 shark
 Squatiniformes - Squatinidae
Squatina sp. Dumeril 1806 angel shark
 Heterodontiformes - Heterodontidae
 Hexanchiformes - Hexanchidae
Hexanchus sp. Rafinesque 1810 sixgill shark
Heptranchias sp. Rafinesque 1810 sevengill shark
 Carcharhiniformes - Triakidae
Mustelus lunulatus hound shark
 Carcharhiniformes - Hemigaleidae
Hemipristis serra Agassiz 1835 ground shark
Chaenogaleus affinis Probst 1878 ground shark
 Carcharhiniformes - Scyliorhinidae
Scyliorhinus sp. Blainville 1816 cat shark
 Carcharhiniformes - Sphyrnidae
Sphyrna zygaena Linnaeus 1758 hammerhead shark
 Carcharhiniformes - Galeocerdidae
Galeocerdo aduncus Agassiz 1835 tiger shark
 Carcharhiniformes - Carcharhinidae
Physogaleus sp. Cappetta 1980 requiem shark
Isogomphodon acuarius daggernose shark
Rhizoprionodon fischeuri sharpnose shark
Carcharhinus cionei requiem shark
Carcharhinus priscus Agassiz 1843 requiem shark
Carcharhinus falciformis Bibron 1841 requiem shark
Scoliodon taxandriae Leriche 1926 requiem shark
 Orectolobiformes - Rhincodontidae
"Rhiniodon typus" = Rhincodon typus
"Rhiniodon typus" = Rhincodon typus Smith 1828 whale shark
 Orectolobiformes - Ginglymostomatidae
Ginglymostoma delfortriei Daimeries 1889 nurse shark
 Lamniformes - Lamnidae
Isurus retroflexus Agassiz 1838 mackerel shark
 Lamniformes - Alopiidae
Alopias superciliosus Lowe 1840 thresher shark
 Lamniformes - Otodontidae
"Carcharocles megalodon" = Otodus megalodon
"Carcharocles megalodon" = Otodus megalodon Agassiz 1835 megalodon
 Rhinopristiformes - Pristidae
Pristis pristis Linnaeus 1758 sawfish
 Rhinopristiformes - Rhynchobatidae
Rhynchobatus pristinus Probst 1877 wedgefish
 Rajiformes - Rajidae
Raja sp. Linnaeus 1758 skate
 Myliobatiformes - Dasyatidae
Dasyatis dianapizarroae whiptail stingray
Dasyatis cavernosa Probst 1877 whiptail stingray
 Myliobatiformes - Myliobatidae
Manta sp. Bancroft 1829 manta
Rhinoptera studeri Agassiz 1843 cownose ray