Questions tagged [taxonomy]

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

45 questions with no upvoted or accepted answers
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What spider is that in south of Brazil?

I'd like to know if it is possible to identify the spider in the photo below. In fact, as shown in the next picture, it is very small. Location: South of Brazil.
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1answer
34 views

Is amphibians being descended from fish reflected in the animalia taxonomy?

I think it is common knowledge that amphibians are descended from fish. At some point there was a transition from sea to land. But when I try to confirm this through the Animalia taxonomy, the ...
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75 views

Identification of Jumping Spider Species

I found this jumping spider (Salticidae family) in Pune/India. Most common species of jumpers in my region is heavy-bodied jumper (Hyllus semicupreus), but this is different species by observing body ...
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0answers
63 views

Help me identify this fly species?

I found this fly in Bengaluru/India. It was larger than usual flies. It was more than 1cm in size, with black color which has blue shades in it. I managed to take just this one pic, then it flew away.
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2answers
361 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
36 views

Is there a taxonomy of species with emergence and extinction dates?

I know the NCBI has a list of each species and their place in the evolutionary tree. But do they have the dates that these species existed? Does any such database (partial or complete) exist anywhere? ...
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0answers
30 views

When a 'v' letter should be changed to 'w' in botanical nomenclature?

When should be 'v' changed to 'w' in botanical names? (especially ones derived from names originally written in cyrillics). The International Code of Nomenclature for algae, fungi, and plants says ...
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0answers
36 views

Pre-linnaean names, where can I ask about current IDs?

I run a large website with lots of historical herb books. For the older ones, finding out current botanical names is very difficult. Can I ask here? If not, does anybody know where I could ask what ...
3
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0answers
153 views

For which taxonomic levels are xylotomical, embryological, and palynological evidence each most useful in determining species relationships?

From the 2010 USABO Semi: In plant systematics, three lines of evidence may be useful in determining relationships; xylotomical (wood anatomy), embryological and palynological. Match these ...
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0answers
131 views

Taxonomy and 'breeds' of animal species

How do taxonomists classify breeds of organisms in a species? When talking in such depths about organisms (using RNA and DNA), don't they have to unavoidably do it? I read in another question that ...
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0answers
127 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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12 views

What is the current state of research on the relationship between sponges, ctenophores, and other animals?

I've been reading about the basal taxonomy of animals recently, and it seems as though there is some controversy surrounding the classification of sponges, ctenophores (comb jellies), and all other ...
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25 views

What websites biologists use to check what new plant or animal species have been discovered in the world?

What are the databases or websites that biologists use to check what new plants or animals have been found in the world? The service should list the location of the discovery, time of discovery, image ...
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547 views

How many kingdoms are there actually?

I am wanting to learn (memorise) some of the tree of life; the classification of organisms. So I have come across a lot of kingdoms in my research. Basically, I don’t want to waste my time learning ...
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39 views

What is the current status of the taxon Crocodylus raninus?

What is the current status of the taxon Crocodylus raninus, the Borneo Crocodile? See Wikipedia Is it now a valid species, a subspecies of Crocodylus porosus (The Saltwater Crocodile) or merely a ...
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21 views

Using spp. for taxa other than Genus

Can spp. be used for taxa other than genus ? For example Noctuidae spp. meaning certain genera in the Noctuidae family.
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0answers
52 views

Appropriateness of PCA to visualize clusters in genetic data

In many genetic studies, PCA is often utilized to examine genetic cluster in human populations. Rarely is the % variance reported for the components. With human data it's been my experience that the ...
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0answers
50 views

what is the classification of this stream insect?

This insect I found from Southers region of Bangladesh. Its limbs are larger than its body.and the picture shows its dorsal part.
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0answers
33 views

Plant determination: Lilium monadelphum versus L. szovitsianum

Lilium monadelphum, L. szovitsianum and L. armenicum belong to group of yellow flowering Lilium species and they are both often cultivated. These species come from Caucasus area, so the first two are ...
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0answers
47 views

How detailed a construction of the family tree of known human fossils do we have?

For the sake of this question, by "human" I mean Hominina. The best I could find is this, which isn't very detailed. Of the dozens of paleospecies we'd seek to link up, do we have a more detailed tree ...
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1k views

Gorgonopsid--What's In a Name?

The Gorgon--a terrifying, monstrous female with hairs made of live snakes and a stare so horrifying that it would literally turn you to stone. The Gorgonopsid--a predatory protomammal that hunted ...
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1answer
133 views

Insect identification: Fly with eye strip

Location details: Country - India, State - Tamil Nadu, District- Chennai. Found this fly in my backyard keen to know its exact name. Thanks for the help
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36 views

Eukaryotic DNA polymerase in Leading and Lagging Strand

Different books say a different specifications on which eukaryotic DNA polymerase work in leading strand and which DNA polymerase work in lagging strand. TL,DR: Which one is reality? and if there ...
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0answers
27 views

Help me identify Grasshopper

I found this Grasshopper in Goa/India. It was about 2cm long. I suspect it is from Cataloipus genus or Gomphocerinae subfamily. Am i correct or it also seems to be juvenile from some other species?
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28 views

How are asexual species classified?

Are there multiple distinct genetic lineages of asexual species that are closely enough related to not be considered distinct or does any genetic change result in a new species? I would assume there'...
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25 views

How related do life forms need to be to produce hybrids?

Specifically, I'm asking about infertile hybrids like ligers, mules, camas, etc. How closely related do animals need to be?
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41 views

Have traditional categories such as phylum, class, genus, been dispensed with in modern taxonomy?

Looking through the one zoom and EOL projects I see no reference to such categories.
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15 views

Should the infraspecific epithet agree in gender with the genus name?

Let's take the following plant name Gymnocalycium mihanovichii So we were to designate the yellow form of the plant, would it be Gymnocalycium mihanovichii f. aurea because forma is ...
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141 views

Example Clade Names in PhyloCode

After looking through the PhyloCode, the only thing I found that looked like an example was in Article 9, Chapter 4: A node-based definition may be abbreviated "<A&B" or "<A&B&C&...
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39 views

need to identify species of this Leaf-footed bug?

I found this bug in Pune/India. I checked many species of leaf-footed bugs, but none of them is matching this one. It was about 3cm long. It was not showing any movement.
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30 views

How would extraterrestrial organisms be categorized?

Suppose we find bacteria on Mars, we sequence its genome, and find it is genetically similar to $E. Coli$. Would we categorize it in the $Escherichia$ genus? Or would we put it into a seperate system ...
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110 views

Book for molecular biology comparative to major taxonomic groups

Want recommendation of books on molecular biology (or molecular cell biology), that elaborately compares the structures and phenomena in the major taxonomic groups. For say, whenever studying about ...
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22 views

Why are some bird species placed as family Incertae sedis while some families are simply monotypic?

The Bananaquit and Western Spindalis are passerines of Incerta sedis. But species such as the Osprey, Limpkin and Olive Warbler belong to their own, monotypic, family. Why aren't Bananaquit and ...
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21 views

Is there a resource for comparing categories of life along quantifiable dimensions such as species diversity, geographic range, total mass, etc?

Ideally what I would like is some sort of interactive, sliceable tabular data along the lines of my examples below. The curious individual specifies the level of taxonomic rank, e.g. Kingdom or Class ...
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241 views

Why is Hydra classified under Hydrozoa when it has neither a planula larva, nor a medusoid form?

If the general basis of classification of cnidarians is with respect to the body form - medusoid or polypoid, or in the incidence of metagenesis (as is common in hydrozoa), both, then, on what basis ...
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44 views

What is the percentage of true bugs compared to all animal species on the plant?

Also, what is the percentage of True Bugs compared to the insect population? I’m writing a children’s book on bugs and I’m comparing the true bug to the insect. All population info seems to combine ...
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79 views

What is the scientific name of Japan's (other) national flower, the chrysanthemum?

In my notes, I had Japan's royal chrysanthemum listed as Chrysanthemum japanense, but I just discovered that name has either been retired or it was never valid to begin with. (Or did I just misspell ...
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506 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
27 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. (i.e....
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0answers
17 views

Where should one start if they want to go about identifying phytoplankton and dinoflagellates?

I'm a first year university student and I really need help on how to identify and recognize the different organisms observed in my water samples. Are there any good references/tips on how to?
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24 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
72 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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23 views

What defines a single organism?

I suppose what prompts me to ask this question is my wondering if it is possible to have a multicellular prokaryotic organism. For instance, can a biofilm be considered a single organism? Why or why ...
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15 views

Database for Macroinvertebrate Taxonomy

I compiled different data sets of invertebrate occurrences across some countries and now I want to ensure that all the taxonomic information is homogenized and correct. To this end, I am looking for a ...
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1answer
23 views

What author citation and abbreviation does (would) a monarch or a crown prince get after publishing a new taxon name?

Even though taxonomic rules appear to be silent about this (I've checked ICN Art. 46 and ICZN Art. 51), author citations, as well as abbreviations, are usually based on a surname. However, monarchs ...