†Carpolestidae
Carpolestidae ist der Familienname von 30 Primaten, die ab dem frühen Paläozän vor 56,0 Millionen Jahren bis vor 33,9 Millionen Jahren lebten. Viele Überreste wurden in Vereinigte Staaten von Amerika (USA) gefunden.
Die Carpolestidae waren kleine Primaten von der Größe einer Maus (20 - 50g), die während des Paläozäns im Westen Nordamerikas und im späten Paläozän bis zum frühen Eozän in China verbreitet waren.
Zur Familie Carpolestidae zählt man sieben Gattungen (Siehe Infobos). Aus jeder Gattung sind zahlreiche Arten bekannt. Aufgrund ihrer unverwechselbaren morphologischen Spezialisierungen und der nur kurzen Zeit, in der sie überdauerten, eignen sich die Überreste von Carpolestiden sehr gut für biostratigraphische Analysen früher tertiärer Sedimente.
Wie Carpolestiden ihre Zähne genau für die Aufbereitung ihrer Nahrung und welche Art von Nahrung sie zu sich nahmen, läßt sich schwer rekonstruieren. Die wenigen lebenden Säugetierarten, die ähnliche aber nicht identische vergrößerte Prämolare aufweisen, sind in einigen Fällen vorwiegend Insektenfresser (z.B. einige Beutelsäuger) und in anderen Fällen teilweise Pflanzenfresser (Känguruhratte).
Physiologie | |
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Gewicht: | ? |
Schwestertaxa | |
Carpolestes hatte im Vergleich mit vielen anderen archaischen Primaten ein relativ kurzes Gesicht. Man kennt keine postcranialen Überreste von Mitgliedern dieser Familie.
Literatur
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