Ceylon - Miocene (Miocene of Sri Lanka)

Where: Sri Lanka (8.3° N, 79.8° E: paleocoordinates 2.9° N, 77.4° E)

• coordinate stated in text

• local area-level geographic resolution

When: Malu Deposit Member (Jaffna Formation), Miocene (23.0 - 5.3 Ma)

• bed-level stratigraphic resolution

Environment/lithology: estuary or bay; argillaceous conglomerate

• Section is cross-cut by "block faulting or horsting," causing one portion to be at 230 elevation and another to be at sea level.
• shaly conglomerate containing marine, estuariane and terestrial vertebrates in association with marine and estuarine invertebrates.

Size class: macrofossils

Collection methods: surface (float),

• Description of vertebrate fossils found in beds originally thought to contain only invertebrates.

Primary reference: P.E.P. Deraniyagala. 1937. Some Miocene fishes from Ceylon. Ceylon Journal of Science 20:355-367 [W. Clyde/L. Gannon/L. Gannon]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 13449: authorized by Will Clyde, entered by John Finarelli on 21.03.2002, edited by Leah Gannon and Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Malacostraca
 Decapoda - Leucosiidae
"Leucosia unidentata" = Euclosia unidentata1
"Leucosia unidentata" = Euclosia unidentata1 De Haan 1841 crab
L. unidentata lankae
Chondrichthyes
 Myliobatiformes - Myliobatidae
 Myliobatiformes - Aetobatidae
 Myliobatiformes - Dasyatidae
Trygon sinhaleyus1 Deraniyagala 1969 whiptail stingray
 Odontaspidida - Isuridae
"Galeolamna gangetica" = Galeolamna gangeticus1
"Galeolamna gangetica" = Galeolamna gangeticus1 Mueller and Henle 1841 mackerel shark
 Carcharhiniformes - Carcharhinidae
Glyphis minor river shark
 Carcharhiniformes - Hemigaleidae
Hemipristis serra1 Agassiz 1835 ground shark
Hemipristis serra Agassiz 1835 ground shark
 Carcharhiniformes - Galeocerdidae
Galeocerdo arcticus, "Galeocerdo cuvieri" = Galeocerdo cuvier1
"Galeocerdo cuvieri" = Galeocerdo cuvier1 Peron and LeSueur 1822 tiger shark
 Lamniformes - Lamnidae
Isurus glaucus1 mackerel shark
Isurus sp. Rafinesque 1810 mackerel shark
Mammalia
 Placentalia -
Cetacea indet.3 Brisson 1762 whale
 Sirenia - Dugongidae
Metaxytherium sp.2 de Christol 1840 dugong
Reptilia
 Testudines - Testudinidae
Miotestudo ibba1 Deraniyagala 1967 turtle
 Testudines - Geoemydidae
 Testudines - Cheloniidae
Miocaretta lankae1 Deraniyagala 1967 sea turtle
Actinopteri
 Labriformes - Labridae
 Tetraodontiformes - Diodontidae
 Spariformes - Sparidae
"Chrysophrys miolankae" = Otolithus (Chrysophris)1
"Chrysophrys miolankae" = Otolithus (Chrysophris)1
 Perciformes -
Callyodon sp. Gronovius 1763 perch-like fish