[Taxacom] Any graptolite name enthusiasts out there...?

Tony Rees tonyrees49 at gmail.com
Sat Jul 20 14:44:53 CDT 2019


Hi Laurent, (hoping you do not object to my copying your response to the
list, as below),

I think your interpretation is reasonable and also agrees with the summary
in a 1950 article I have found (Bulman, Journal of Paleontology Vol. 24,
No. 5 (Sep., 1950), pp. 566-570,  https://www.jstor.org/stable/1299540 ),
which states: "The name Cyclograptus was proposed by Spencer in 1882 and
described in 1883 and 1884 for a species of dendroid graptolite occurring
in the Niagara limestone..." and gives the Proc. AAAS reference with the
date 1883. I think that the 1878 date is spurious because in his 1884
paper, Spencer says: "I had often noticed the wheel-like stains... it was
only in December, 1879, that I obtained two specimens and two casts whose
characters could be determined." Maybe some people have confused the name
Cyclograptus with another genus name, Calyptograpsus, which Spencer did
describe in 1878.

I was just wondering if anyone has access to the relevant entry in the
Graptolite volume of the "Treatise on Invertebrate Paleontology" to see
what the authors might say there?


Tony Rees, New South Wales, Australia
https://about.me/TonyRees


On Sat, 20 Jul 2019 at 20:19, Laurent Raty <l.raty at skynet.be> wrote:

> Tony,
>
> At first sight and without being a graptolite specialist in any way, I'd
> tend to go with the second Neave reference, i.e., p 365 in
> https://archive.org/details/proceedingsamer28sciegoog/
>
> The date of publication of this volume (as per the title page) seems to
> be 1883, though. 1882 was the year of the 31st meeting itself.
>
> The genus is given a name and a diagnosis here, which should be enough for
> availability, but no species name is added. The species name will then
> presumably date from the 1884 publication. (Type species fixed by
> subsequent monotypy. It's ok for generic names dating from before 1931 and
> introduced without any included nominal species.)
>
> The volume containing the 1884 work was started in 1878: could this be the
> origin of the cited 1878 date ?
>
> Cheers, Laurent -
>
> Le 19 juillet 2019 à 09:49, Tony Rees via Taxacom <
> taxacom at mailman.nhm.ku.edu> a écrit :
>
>
> Dear Taxacomers,
>
> I am trying to solve a small mystery regarding the valid (i.e. available)
> publication date for the graptolite (fossil) genus Cyclograptus Spencer.
>
> Nomenclator Zoologicus has the following information:
>
> Cyclograptus Spencer 1882 Canad. Natural., (N.S.) 10, 165 [n.n.]; Proc.
> Amer. Assoc., 31, 365.
>
> Other sources (e.g. WoRMS) have a publication date for the genus as 1878,
> as per the entry at
> http://www.marinespecies.org/aphia.php?p=taxdetails&id=579924 .
>
> There is a record available via BHL at
> https://biodiversitylibrary.org/page/5800061 where Spencer describes the
> genus as new. This is from Trans. Acad. Sci. St. Louis, IV, 1884, p. 592,
> which appears in the following list of publication details for the type
> species (see
> https://www.flickr.com/photos/internetarchivebookimages/20318694789/):
>
> Cydograptus rotadentatus Spencer, Canadian Nat, X, 1882, p. 165, nomen
> nudum; Trans. Acad. Sci. St. Louis, IV, 1884, pp. 565, 592, .593, pi. 6,
> figs. 6, 6a; Bull. Mus. Univ. State Missouri, I, 1884, pp.'15. 42, 43, pi.
> 6, figs. 6, 6a
>
> http://www.graptolite.net/Cyclograptus/ has the following entry:
> Genus Cyclograptus Spencer, 1878
> Type species: Cyclograptus rotadentatus Spencer, 1884
>
> So it seems we have a choice between 1882 (2 instances, one a nomen nudum),
> 1878 and 1884... and can a genus (of that era) have a valid (available)
> publication date that pre-dates that of its type species?
>
> Any/all assistance appreciated,
>
> Regards,
>
> Tony Rees, New South Wales, Australia
> https://about.me/TonyRees
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