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Two kinds of fossils resembling red algae were found sometime between 2006 and 2011 in well-preserved sedimentary rocks in Chitrakoot, central India. The presumed red algae lie embedded in fossil mats of cyanobacteria, called stromatolites, in 1.6 billion-year-old Indian phosphorite – making them the oldest plant-like fossils ever found by ...
Bangiomorpha pubescens is a species of red algae in the order Bangiales. [1] It is the first known sexually reproducing organism. A multicellular fossil of Bangiomorpha pubescens was recovered from the Hunting Formation in Somerset Island, Canada that strongly resembles the modern red alga Bangia despite occurring in rocks dating to , during the Stenian period. [2]
Two kinds of fossils resembling red algae were found sometime between 2006 and 2011 in well-preserved sedimentary rocks in Chitrakoot, central India. The presumed red algae lie embedded in fossil mats of cyanobacteria, called stromatolites, in 1.6 billion-year-old Indian phosphorite – making them the oldest plant-like fossils ever found by ...
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 Vindhyan region is made of older rocks and the presence of fossils raised considerable interest and further studies were carried out and in 2017, these were announced as clear and unquestionably traces of living organisms. The cells have been said to be similar to oscillatoriacean cyanobacteria and probably multicellular red algae (Rhodophyta).
Perhaps the most ancient remains of Archaeplastida are putative red algae within stromatolites in 1600 Ma (million years ago) rocks in India, [53] as well as possible alga fossils (Tuanshanzia) from China's Gaoyuzhuang Biota of a similar age. [54] Somewhat more recent are microfossils from the Roper group in northern Australia. The structure of ...
(Just because they were formed in the same way doesn't mean they were formed by green algae, though.) [7] The most likely affinity, for the aperture-bearing cuticles, is with the coralline red algae; the absence of biomineralization suggests a stem-group level affiliation. [3]
Palaeoaplysina is a genus of tabular, calcified fossils that are a component of many Late Palaeozoic reefs. [1] The fossil acted as a baffle to trap sediment. Historically interpreted as a sponge or hydrozoan, [2] recent studies are converging to its classification in the coralline stem group, placing it among the red algae.