Questions on the classification of biological organisms, and the methods used for classifying them.

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3
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1answer
38 views

Application of Latin names for Taxonomy

The current taxonomy has family names like Canidae and Felidae. But Felidae has sub families like Felinae and Pantherinae. Roaring cats and non-roaring cats. My question is based on the fact that we ...
3
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1answer
56 views

Mammal vs Placental Mammal

So for Google Earth Day's quiz I ended up being a "Pangolin." Turns out I had no idea what it was so I looked into it and honestly it reminded me a lot of an Armadillo. So I decided to find out the ...
3
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1answer
306 views

What does x in “Miscanthus × giganteus” name stand for?

I came across a species name that contains "x" in its name, namely Miscanthus × giganteus. What does this symbol stand for and is it commonly used in taxonomic nomenclature?
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3answers
179 views

Is there a downloadable list of all species along with their traditional classification?

I'm looking for a downloadable list of all known (or better said, online documented) species in this straightforward format, as an example the European Frog: Kingdom: Animalia Division: Chordata ...
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2answers
167 views

What is the species of these mushrooms?

The mushrooms are gilled with a light-brown cap. The stem is widened to the base. What species is it? Is it considered edible? They are found in mixed forest in Moscow, Russia. They grow in the ...
3
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1answer
76 views

List of dinosaurs synonyms

Is there a comprehensive list of dinosaurs synonyms with indications of which name is now considered correct? Something like "there's no brontosaurus, there's only Apatosaurus", "there's no ...
3
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1answer
62 views

What is the most recent well-attested common ancestor of chimpanzees and humans?

Humans and chimpanzees are related and thus have a most recent common ancestor. Of course pinning down this precise point is essentially impossible, so I'm interested in close ancestors of this most ...
3
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1answer
167 views

An unexpected mushroom in my garden

My grandma is a great fan of mushrooms and knows quite a lot about them. About 10 years ago, she started throwing out mushroom remnants in one special place, in order to grow her own mushrooms. In ...
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2answers
163 views

Is the tomato a very very close relative of the pepper?

I ask because if you look at a tomato, the way it grows on a vine, its color, the texture, and make up of its skin and internal structure it seems very much like a pepper. The only thing I can think ...
2
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1answer
14k views

Why are bacteria and archaea in different domains?

As I understand it, the main difference between the Bacteria and the Eucaryota domains are that eukaryotes have a nucleus and bacteria don't. I understand that bacteria and archaebacteria have enough ...
2
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1answer
292 views

Evolutionary distance between Canidae, Felidae, and Rodentia

Comparing the families Canidae and Felidae, which have the shorter evolutionary distance to the order Rodentia? Less sophisticatedly put, are cats or dogs more related to rodents?
2
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1answer
51 views

Citing species in a biology article

My question concern the abbreviation of the genus of a species. I talk about two species: Amphiprion clarkii and Amphiprion perideraion. Question 1 Let's assume I haven't said a word about these ...
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1answer
4k views

What is the difference between these terms: clade, monophyletic group and taxon?

Wikipedia definitions for these terms are pretty similar: http://en.wikipedia.org/wiki/Clade http://en.wikipedia.org/wiki/Monophyletic_group http://en.wikipedia.org/wiki/Taxon They sound like the ...
2
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1answer
158 views

Why are Oxyuranus snake species named Taipan?

It is interesting, why are Oxyuranus species called Taipan. The snakes are Australian but taipan looks like of Chinese origin word (it means big shot - important person).
2
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1answer
227 views

What is actually systematics? What is the difference between it & taxonomy?

In the last century, even during the past decades of the present century, students of systematics could not have thought of any fundamental distinctions among Taxonomy & Systematics . These ...
2
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1answer
128 views

Meaning of the word Oleracea

What does "oleracea", as appears in numerous plant species (scientific) names, mean? Examples: Euterpa oleracea, Brassica oleracea, Portulaca oleracea, Acmella oleracea, Spilanthes oleracea.
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1answer
148 views

Relationship between leaf structure and Photosynthesis rate

We can see numerous leaf structures in plant kingdom. As the leaves are designed for photosynthesis, their structure must be a factor for any optimization in photosynthesis or chlorophyll ...
2
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1answer
1k views

What is difference between breed, variant, subspecies and species?

What is the difference between breed, variant, sub-species and species? Are there any similarities between sub-species and sub-population of a region?
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1answer
69 views

What makes certain obligate anaerobes viable in fermentation starter cultures?

If Propionibacterium are obligate anaerobes (to wit, poisoned by oxygen), what makes 'Dairy' or classical propionibacteria (e.g. P. shermanii, P. jensenii, P. acidicpropionici, et al) viable in ...
2
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1answer
32 views

Clarification about taxon (plural taxa)

If i am right, then any category placed at any rank in the taxonomical hierarchy is a taxon. For example Panthera, Mammalia, Solanaceae etc. But are general group of organism (casual groups which are ...
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1answer
82 views

What is the difference between taxonomical aids Flora, Manual and Catalogue?

The three type of books mentioned above are taxonomical aids that offer information about species found in an area. However, the exact difference between them is not clear to me. Please explain.
2
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1answer
145 views

Does Pseudomonas aeruginosa have any common name at all?

Pseudomonas aeruginosa is the fifth most written about¹ binomial name of all species. I'm having trouble coming to terms with the possibility that such a well researched and studied organism has never ...
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0answers
17 views

Why are bovines different genera if they can interbreed?

Why are bovinae a "subfamily", above Genus, when members can interbreed? Some like the beefalo are fertile, which is the normal defining characteristic of a species. And Genus are groups more ...
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0answers
22 views

More general usage of the term 'congener'

In taxonomy the term 'congener' refers to two species within the same genus. In more colloquial usage, it can refer to any two objects within the same category. Is there a way to refer to related ...
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2answers
867 views

What is the most complex plant form?

At school we were told on scale of 0 through 1000 the animal kingdom ranges from amoeba the simplest/primitive being at 0, and Humans the most complex animals at 1000; what are the equivalent ...
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2answers
89 views

Characters do not make the genus, but the genus gives the characters?

In his Origin of species, in the chapter entitled 'Mutual Affinities of Organic Beings: Morphology: Embryology: Rudimentary Organs', Darwin, speaking of the nature of classification systems of living ...
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1answer
545 views

Birds and Dinosaurs

This came up in an argument with some friends. I know that birds are direct descendants of dinosaurs, shown pretty clearly through the fossil record. However, is it proper to say that birds are ...
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2answers
3k views

Are mature RBCs prokaryotic?

Mature mammalian RBCs have all the characteristics of a eukaryotic cell except that they don't have a nucleus, they don't have any cell organelles. Does this mean that RBCs are classified as ...
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2answers
28 views

Why are there seven entries for Pimpinella dioica in the Catalogue of Life?

And six for Haliclona digitata, and five for Ichneumon varius. A couple of the duplicate entries are synonyms for other species, which is understandable, but most are the "accepted name". Shouldn't ...
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1answer
52 views

Alternative plant taxonomies to Linneaus

In addition to Linneaus-inspired taxonomies of the botanical world, I suppose there are some other proposals for different kinds of taxonomic accounts, perhaps for specific sub-domains of botany or ...
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2answers
41 views

Could alpha-numeric taxonomy of fungi make things simpler?

Please feel free to construe this question broadly--I don't see why the question would not apply to branches of biology other than mycology. If the goal of taxonomy is to create classification of ...
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1answer
583 views

Difference between Category, Rank and Taxon

Is there any differences between the terms Category, Rank and Taxon or they all are same? I remember an explanation which goes on like this: Category and Rank are the same and are the categories of ...
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1answer
121 views

Can all animals of the same species crossbreed?

For example, take Canis lupus, the species of dog and wolf. Within their species, can all dog and wolf types crossbreed? We can forget the logistics and assume this is all done through artificial ...
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1answer
82 views

Usage of the taxonomic classification “Pinnipedia”

According to ITIS the classification Pinnipedia is invalid, and it is proposed to rather use Caniformia. The later group however includes a range of terrestrial animals as opposed to the pinnipeds ...
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1answer
11 views

Anemiaceae etymology

What is the etymology of the name Anemiaceae for a family of ferns? I assume that it's from the name Anemia for one of its genera, but that is equally mysterious. Obviously it has no blood, but what ...
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1answer
44 views

Why do we spend so much time on creating taxonomies? [closed]

I spent 3 years building a taxonomic database of plant specimens for the Missouri Botanical Gardens (http://www.tropicos.org/). Myself and two other programmers used a modern database and web pages to ...
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0answers
19 views

Protostomia classification and characteristics

While working through a practice test for my final exam in an introductory organism biology course, I came across this question: Protostome characteristics include which of the following? a) a ...
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0answers
7 views

Difference on biological classification [duplicate]

Why we use term phylum for kingdom animali and use them division for kingdom planti ,prokaryota and fungi? Both are same taxanomical rank What difference between phylum and division ??
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0answers
108 views

Why are hybrid offspring mostly sterile? [closed]

Hybrid infertility is a common trait in cross-species offspring. Most are sterile, as they do not produce viable gametes. Examples of this can include Ligers and Mules. Could modern advancement in ...
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1answer
40 views

How to correctly and accurately identify a few species of trees from their leaves(including multiple leaves and part of the branch)?

I want to identify a tree from one of the 12 species listed based on observing their branch and leaves. Is there quick and neat way to do it? Red Oak, White Oak, Red Maple, Striped Maple, Tulip ...
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0answers
19 views

What are the main principles of the Bacteriological Code?

Although the Bacteriological Code is an important guideline for taxonomists and microbiologists, describing the criteria for delineating species and higher taxa of the prokaryotes, I, and plenty of ...
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0answers
37 views

Endemic plant families on islands?

Endemism on islands is quite a common phenomenon, at least at the level of species or genera. Old continental fragments like Madagascar or New Caledonia may even harbour endemic families which went ...
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1answer
91 views

How can green algae be both multicellular and unicellular?

How can green algae be both multicellular and unicellular? What are the cases in which it can be both uni and multi cellular?
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2answers
28 views

Etymology of the term monilophyte

I would like to know the origin of the term Monilophyta. I know it's from Kenrick and Crane, but where did they get monilo-? It's not in my enormous Liddell and Scott Greek dictionary, nor is there ...
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1answer
24 views

Are platyhellmintes and annelids segmented?

Are the organisms of platyhelminthes unsegmented worms or segment? And what about those belonging to annelida? I guess Platyhelminthes are unsegmented and annelida are segmented but i am not sure ...
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1answer
28 views

What is the difference between Ostracodermi and Placodermi

I looked the word origin and found Placodermi is PLATE SKINNED while Ostracodermi is Shell Skinned. Can you please explain the difference between being Plate skinned and Shell skinned?
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1answer
35 views

Information and image of Genus Acesina

I am searching for image and information, like distribution etc of the genus Acesina. The Taxonomic tree is: ...
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0answers
19 views

Readers in biological nomenclature

I know that a binomial name may be followed by the name of the reader who has been the first to identify the species and to give it that binomial name. It is not completely clear to me what the same ...
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1answer
26 views

How are subspecies defined, in contrast to species? [duplicate]

When should a taxon be considered to be a subspecies of a certain species, and when as a different species? Are there some general guidelines how to assign a specific taxonomic status to a taxon?
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16 views

Machine-readable APG III trees?

Does anyone know where I can find a machine-readable version of the phylogenetic trees from APG III? I'm looking for something that contains the full tree structure, including unnamed branches. ...