Fairmead landfillPaleontology

The Fairmead Landfill locality preserves a diverse late Irvingtonian biota. Vertebrates include Sacramento perch, pond turtle, desert tortoise, colubrid snakes, salamander, frog, waterfowl, owl, dove, and twenty-seven mammalian species. Invertebrates include a snail and a bivalve. Plant macrofossils are represented by molds of cocklebur. Fossil preservation occurred under a range of taphonomic conditions.

Research

Fairmead Landfill Locality Vertebrate Fauna
 

Taxon

Class Actinopterygii (ray-finned fishes)
      Order Perciformes (perch-like fishes)
           Family Centrarchidae (sunfishes)
              Archoplites interruptus (Sacramento perch)
Class Amphibia (amphibians)
      Order Caudata (salamanders, newts, etc.)
      Order Anura (frogs and toads)
Class Reptilia (reptiles)
      Order Testudines (turtles and tortoises)
           Family Emydidae (turtles)
              Clemmys marmorata (western pond turtle)
           Family Testudinidae (tortoises)
              Xerobates agassizi (desert tortoise)
      Order Squamata (scaled reptiles)
           Family Colubridae (snakes)
Class Aves (birds)
      Order Strigiformes (owls)
           Family Strigidae  (true or typical owls)
                 Athene cunicularia (burrowing owl)
     Order Anseriformes (waterfowl) 
           Family Anatidae (ducks and geese)
               Branta canadensis (Canada goose)
               Tadorna tadorna(common shelduck)
      Order Columbiformes (doves and pigeons)
           Family Columbidae  (doves)
                 Zenaida macroura (mourning dove)
Class Mammalia (mammals)
      Order Soricomorpha (shrews and moles)
           Family Soricidae  (shrews)
                 Sorex sp. (shrew)
      Order Edentata (anteaters, armadillos, sloths)
           Family Mylodontidae (ground sloths)
                Paramylodon harlani (Harlan’s ground sloth)
           Family Megatheriidae (giant ground sloths)
                 Nothrotheriops shastensis (Shasta ground sloth)
           Family Megalonychidae (two-toed sloths)
                Megalonyx wheatleyi (Wheatley’s ground sloth)
     Order Carnivora (carnivores) 
           Family Canidae (canids (i.e. dogs))
                Canis latrans (coyote)
                Canis dirus (dire wolf)
               Vulpes velox (swift fox)
           Family Felidae (cats)
               Homotherium sp.(Scimitar cat)
               Smilodon sp. (Saber-tooth cat)
               Miracinonyx sp.(American cheetah)
           Family Mustelidae (weasels, badgers, skunks, etc.)
              Taxidea taxus (badger)
           Family Ursidae (bears)
               Arctodus sp. (Giant short-faced bear)
     Order Rodentia (rodents)
           Family Sciuridae (squirrels, etc.)
               Spermophilus sp. (ground squirrels)
           Family Cricetidae (rats, mice)
               Neotoma sp. (woodrat)
               Peromyscus sp. (deer mouse)
              Microtus sp. (vole)
           Family Geomyidae (gophers)
               Thomomys sp. (pocket gopher)
           Family Heteromyidae (rats)
              cf. Dipodomys sp. (kangaroo rat)
     Order Lagomorpha (rabbits and hares)
           Family Leporidae (rabbits and hares)
               Lepus sp. (rabbit)
     Order Proboscidea (proboscideans)
           Family Elephantidae (elephants)
               Mammuthus columbi (Columbian mammoth)
     Order Perissodactyla (perrisodactyls)
           Family Equidae (horses)
               Equus sp. (horse)
     Order Artiodactyla (artiodactyls)
           Family Camelidae (camels)
               Camelops sp. (camel)
              Hemiauchenia sp. (llama)
           Family Antilocapridae (pronghorns)
               Tetrameryx irvingtonensis (Irvington pronghorn)
              Capromeryx sp. (small-sized pronghorn)
           Family Cervidae (deer)
               Odocoileus sp. (deer)
           Family Tayassuidae (peccary)
               Platygonus vetus (Leidy's peccary)

 

Fauna

The Fairmead Landfill fauna consists of one fish, two amphibians, three reptiles, four birds, 27 mammals, one grastropod and one bivalve.

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Flora

Presently, the only plant macrofossils to be recovered from the Fairmead Landfill locality are molds of the cocklebur Xanthium. Pollen analysis is yet to be conducted.

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Taphonomy

Fossils at Fairmead Landfill are preserved under a wide range of taphonomic conditions.

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publications & presentations

Click the following link to access publications and presentations relating to the Fairmead Landfill biota.

 

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