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Marpolia has been interpreted as a cyanobacterium, but also resembles the modern cladophoran green algae. It is known from the Middle Cambrian Burgess shale [1] and Early Cambrian deposits from the Czech Republic. [2] It comprises a dense mass of entangled, twisted filaments.
The Cambrian (/ ˈ k æ m b r i. ə n, ˈ k eɪ m-/ KAM-bree-ən, KAYM-) is the first geological period of the Paleozoic Era, and the Phanerozoic Eon. [5] The Cambrian lasted 51.95 million years from the end of the preceding Ediacaran period 538.8 Ma (million years ago) to the beginning of the Ordovician Period 486.85 Ma.
The extinct Solenoporaceae have traditionally been interpreted as a group of red algae ancestral to the Corallinales. [4] The genus from which they take their name, Solenopora, originates in the Ordovician. [5] Unlike the Corallinaceae, this family has large vegetative cells and an undifferentiated thallus. [5]
The coast of California north of San Francisco contains the Northern California coastal forests (as defined by the WWF) and the southern section of the Coast Range ecoregion (as defined by the EPA). This ecoregion is dominated by redwood forest , containing the tallest and some of the oldest trees in the world.
Illustration of a fossil of the Cambrian trilobite Olenellus †Olenellus †Olenellus fowleri – or unidentified comparable form †Oryctocephalus †Oryctocephalus indicus †Paladin; Palaeoaplysina †Paleochiton †Parafusulina †Paraschwagerina †Peachella; Fossilized shell of the Silurian-Middle Devonian brachiopod Pentamerus ...
The San Pedro-based Marine Mammal Care Center is in need of donations and volunteers as it combats an algae bloom that has killed or sickened more than 1,000 creatures.
The algae, Pseudo-nitzschia, is consumed by fish, which are then eaten by sea lions. The fish carry a neurotoxin called domoic acid that the algae produces, essentially poisoning the sea lions ...
Cambrorhytium is an enigmatic fossil genus known from the Latham Shale (California), [2] and the Chengjiang (China) and Burgess Shale (Canadian rockies) lagerstätte. [ 3 ] 350 specimens of Cambrorhytium are known from the Greater Phyllopod bed , where they comprise 0.7% of the community.