Timeline of Pinna Taxonomy

# Pinna Taxonomy

## What is a Pinna?

Pinnas are a group of reptiles on Venus III, of which had a messy taxonomic history, and the term Pinna was most commonly used by lead Pinnologist (someone who studies Pinnas) George24681 and his study on these reptiles. But now in 2023 the term Pinna is now only used to describe the infraorder of Pinnidia, or the true Pinnas, but due to a recent study this adds in members that weren't originally classed as "Pinnas" into the larger order and suborder of Pinnomorpha and Pinniformes. Well, with no further to do let's get on with the timeline.

## 1800's

### 1850's

#### 1855

* The genus "Velox" was discovered
* Velox pinna was discovered
* Velox megalognathorex was discovered
* Velox apex was discovered (it is pronounced "Ah-phex" not "Ay-pex")

### 1860's

#### 1867

* The theory that Pinnas being a kind of fishapod has been proposed
* Velox delionus was discovered
* Velox ferox was discovered
* The theory that V. delionus was the ancestor to all other 'pinnas has been proposed

### 1880's

#### 1885

* Velox rex was discovered
* A debate had been sparked on if V. ferox is really in the genus of Velox, due to major differences in it's morphology

## 1900's

### 1900's

#### 1904

* The genus Pinnosuchus was discovered to house both V. megalognathorex and V. ferox now as P. megalognathorex and P. ferox respectively
* The family Veloxidae has been proposed

#### 1907

* Veloxidae has been disputed by interstellar taxonomists

### 1910's

#### 1912

* Major traits in 'pinnas have shown that Veloxidae is a valid family
* Pinnosuchidae was formed to house Pinnosuchus and the newly discovered genus Feroxsinovenator
* Feroxsinovenator was discovered to house Pinnosuchus ferox

#### 1918

* Eroxon was discovered to house Velox delionus and was put in the Pinnosuchidae family along with Pinnosuchus and Feroxsinovenator

### 1920's

#### 1923

* The debate on whether or not Pinnas are amphibians have been first sparked
* Pinnosuchidae is thought to be a family of "Earth fish" and not pinnas nested with barracudas as their closest relatives
* The genus and species of Apex pinna as discovered to house Velox apex
* Pinnas are seen an unnatural for the first time

#### 1927

* Ichthyopinna was discovered and was nested as an Apexid
* The family Apexidae was formed and Pinnosuchidae was brought back as a group of pinnas
* Veloxidae was back to being valid
* Veloxoidea was discovered to house the 3 families

#### 1929

* A study places Ferxosinovenator as a kind of archosaur and not a Pinna
* Veloxidae, Apexidae, and Pinnosuchidae were lumped in within the family Esocidae

### 1930's

#### 1932

* Eopinna rex was discovered
* Archaeopinna eoinsectivora was discovered
* Pinnosuchidae, Apexidae, and Veloxidae were lumped into one family being the Pinnodae

#### 1935

* The genus "Eroxon" was soon classed as fish, and other Pinnas were classed as Amphibians
* Suchopinna was discovered and was in the Subfamily "Archaeopinninae"
* Pinnas were classed as some kind of Earth salamander

### 1950's

#### 1954

* Pinnas were seen as primitive amphibians that are the missing link between fish and amphibians
* Archaeopinna rex was discovered to house Velox rex
* Pinnas are now seen as dumb, sluggish animals

### 1970's

#### 1975

* Early Pinnas are thought to be terrestrial and are very dumb
* Eopinna rex was discovered to house Archaeopinna rex

### 1980's

#### 1988

* Don Bluth created The Land Before Time and thus depicting the stem-pinna Anatocephalus as being a smart and caring animal
* The Pinna Renaissance began
* Eopinna parvus was discovered and was debated upon on if it is a young E. rex

### 1990's

#### 1990

* True Pinnas are now classed in Pinnidia
* Eopinna parvus is see as a juvenile Eopinna rex

#### 1994

* All pinnas are now thought to be basal Earth tetrapods and all of the terrestrial stem pinnas are classed as other groups
* The bite force of Pinnosuchus has been officially recorded as 1,000,000 newtons

#### 1998

* A new theory has been proposed onto how pinnas manage to be on many planets, and they have came from some highly intelligent amphibians that were aquatic and thus evolving into all the pinnas

## 2000's

### 2000's

#### 2005

* Pinnosuchus minimus was discovered
* Eopinnosuchus microdon was discovered
* Bathypinna gigomma was discovered

### 2010's

#### 2012

* Pinnologist George24681 was born
* Velox pinna was found on the planet Titanoferr
* New study on pinnas said that they are warm-blooded unlike most amphibians
* Parvopinna rex was discovered

### 2020's

#### 2023

* Pinnas are seen as descendants to Tiktaalik
* After nearly 200 years of debate Pinnas are finally seen as creatures from Venus III and as Venus III reptiles rather than Amphibians
* Feroxsinovenator was seen as a pinna once again after 94 years of it being an Earth archosaur
* Morcetiodogus was seen as a Pinnomorph for the first time
* The family Pinnidae was formed
* Pinnosuchinae was formed to house Pinnosuchus, Eopinnosuchus, and Feroxsinovenator and Pinninae was formed to house Velox, Apex, and other Pinnids that aren't outgroups

## References

1. ↑ Pinnologist George24681
2. ↑ Feroxsinovenator
3. ↑ A December 18th 2022 page of which Pinnodae was used
4. ↑ An individual of the species
5. ↑ The film that started the Pinna Rennaissance
6. ↑ Pinnosuchus project
7. ↑ Titanoferr
8. ↑ A new vision on Pinnas